/* ========================================
   VARIABLES Y RESET
   ======================================== */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #14b8a6;
    --accent: #f59e0b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #0f172a;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-secondary);
    color: var(--gray-900);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ========================================
   LOGIN SCREEN
   ======================================== */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 2rem;
}

.login-background {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    z-index: 0;
}

.gradient-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.95) 0%, rgba(79, 70, 229, 0.9) 50%, rgba(20, 184, 166, 0.95) 100%);
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.85; }
}

.animated-shapes {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(2px);
}

.shape-1 { width: 600px; height: 600px; top: -200px; right: -200px; animation: float 20s ease-in-out infinite; }
.shape-2 { width: 400px; height: 400px; bottom: -100px; left: -100px; animation: float 15s ease-in-out infinite reverse; }
.shape-3 { width: 350px; height: 350px; top: 50%; left: 50%; transform: translate(-50%, -50%); animation: pulse 12s ease-in-out infinite; }

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-40px) rotate(180deg); }
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.15; }
    50% { transform: translate(-50%, -50%) scale(1.15); opacity: 0.08; }
}

.login-card {
    position: relative;
    z-index: 10;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    padding: 3rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    width: 100%;
    max-width: 480px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-header { text-align: center; margin-bottom: 2.5rem; }

.logo-large {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-xl);
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.logo-large i { font-size: 2.5rem; color: white; animation: rocketFloat 3s ease-in-out infinite; }

@keyframes rocketFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

.login-header h1 {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.login-header p { color: var(--gray-600); font-size: 0.95rem; }

.auth-form { display: flex; flex-direction: column; gap: 1.25rem; }

.form-group { display: flex; flex-direction: column; gap: 0.5rem; }

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-group label i { color: var(--primary); }

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: white;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.password-input { position: relative; }
.password-input input { padding-right: 3rem; }

.toggle-password {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--gray-400);
    transition: var(--transition-fast);
}

.toggle-password:hover { color: var(--primary); }
.password-hint { font-size: 0.8rem; color: var(--gray-500); margin-top: 0.25rem; }

.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.875rem;
}

.remember-me { display: flex; align-items: center; gap: 0.5rem; cursor: pointer; color: var(--gray-600); }
.forgot-password { color: var(--primary); text-decoration: none; font-weight: 500; }
.forgot-password:hover { text-decoration: underline; }

.radio-group { display: flex; gap: 1rem; }

.radio-label {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
}

.radio-label:hover { border-color: var(--primary-light); background: var(--gray-50); }
.radio-label input[type="radio"] { width: auto; }
.radio-label input[type="radio"]:checked + span { color: var(--primary); font-weight: 600; }
.radio-label:has(input:checked) { border-color: var(--primary); background: rgba(99, 102, 241, 0.05); }

.btn-primary {
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4); }
.btn-primary:active { transform: translateY(0); }
.btn-block { width: 100%; }

.form-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-200);
}

.form-footer p { color: var(--gray-600); font-size: 0.9rem; }
.form-footer a { color: var(--primary); text-decoration: none; font-weight: 600; transition: var(--transition-fast); }
.form-footer a:hover { color: var(--primary-dark); text-decoration: underline; }

.error-message {
    padding: 1rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-md);
    color: var(--danger);
    font-size: 0.9rem;
    margin-top: 1rem;
    display: none;
}

.error-message.show { display: block; animation: shake 0.5s ease; }

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

/* ========================================
   DASHBOARD
   ======================================== */
.dashboard { display: flex; height: 100vh; overflow: hidden; }

.sidebar {
    width: 280px;
    background: linear-gradient(180deg, var(--gray-900) 0%, var(--gray-800) 100%);
    color: white;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
    z-index: 100;
}

.sidebar-header { padding: 2rem 1.5rem; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }

.logo { display: flex; align-items: center; gap: 0.75rem; font-size: 1.25rem; font-weight: 800; }
.logo i { font-size: 1.75rem; color: var(--primary-light); }

.sidebar-nav { flex: 1; padding: 1.5rem 0; overflow-y: auto; }

.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.875rem 1.5rem;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.nav-item i { font-size: 1.1rem; width: 24px; }
.nav-item:hover { background: rgba(255, 255, 255, 0.05); color: white; }
.nav-item.active { background: rgba(99, 102, 241, 0.15); color: white; border-left-color: var(--primary-light); }

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-profile { flex: 1; display: flex; align-items: center; gap: 0.75rem; }

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 1rem;
}

.user-info { display: flex; flex-direction: column; }
.user-name { font-weight: 600; font-size: 0.9rem; }
.user-role { font-size: 0.75rem; color: rgba(255, 255, 255, 0.6); }

.btn-logout {
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: var(--radius);
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    transition: var(--transition);
}

.btn-logout:hover { background: rgba(239, 68, 68, 0.2); color: var(--danger); }

.main-content { flex: 1; display: flex; flex-direction: column; overflow: hidden; background: var(--bg-secondary); }

.top-bar {
    height: 70px;
    background: white;
    border-bottom: 1px solid var(--gray-200);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
    z-index: 50;
}

.search-bar { flex: 1; max-width: 500px; position: relative; }
.search-bar i { position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); color: var(--gray-400); }
.search-bar input { width: 100%; padding: 0.75rem 1rem 0.75rem 3rem; border: 2px solid var(--gray-200); border-radius: var(--radius-lg); font-size: 0.95rem; transition: var(--transition); }
.search-bar input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1); }

.top-bar-actions { display: flex; align-items: center; gap: 0.75rem; }
.notifications-wrapper { position: relative; }

.notifications-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    width: 350px;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--gray-200);
    z-index: 1000;
    display: none;
    max-height: 400px;
    overflow-y: auto;
}

.notifications-dropdown.show { display: block; animation: slideDown 0.2s ease; }

@keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }

.notification-empty { padding: 2rem; text-align: center; color: var(--gray-500); }

.notification-item {
    padding: 1rem;
    border-bottom: 1px solid var(--gray-100);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    gap: 0.75rem;
}

.notification-item:hover { background: var(--gray-50); }

.notification-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(99, 102, 241, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.notification-content h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 0.25rem; }
.notification-content p { font-size: 0.85rem; color: var(--gray-600); margin-bottom: 0.25rem; }
.notification-content span { font-size: 0.75rem; color: var(--gray-400); }

.icon-btn {
    position: relative;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    border: none;
    background: var(--gray-100);
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover { background: var(--gray-200); color: var(--gray-800); }

.badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--danger);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.4rem;
    border-radius: 999px;
    min-width: 18px;
    text-align: center;
}

.content-section { display: none; flex: 1; overflow-y: auto; padding: 2rem; }
.content-section.active { display: block; }

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-header h2 { font-size: 1.875rem; font-weight: 800; color: var(--gray-900); }
.section-subtitle { color: var(--gray-600); font-size: 0.95rem; margin-top: 0.25rem; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.5rem; margin-bottom: 2rem; }

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1.25rem;
    transition: var(--transition);
}

.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.stat-icon { width: 56px; height: 56px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: white; }
.stat-icon.blue { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.stat-icon.green { background: linear-gradient(135deg, #10b981, #059669); }
.stat-icon.orange { background: linear-gradient(135deg, #f59e0b, #d97706); }
.stat-icon.purple { background: linear-gradient(135deg, #a855f7, #7c3aed); }

.stat-info { flex: 1; }
.stat-label { display: block; font-size: 0.85rem; color: var(--gray-600); font-weight: 500; margin-bottom: 0.25rem; }
.stat-value { display: block; font-size: 2rem; font-weight: 800; color: var(--gray-900); }

.recent-activity-section { background: white; padding: 1.5rem; border-radius: var(--radius-lg); box-shadow: var(--shadow); margin-bottom: 2rem; }
.recent-activity-section h3 { font-size: 1.125rem; font-weight: 700; margin-bottom: 1rem; display: flex; align-items: center; gap: 0.5rem; color: var(--gray-800); }
.recent-activity-section h3 i { color: var(--primary); }
.recent-activity-list { display: flex; flex-direction: column; gap: 1rem; }

.activity-item { display: flex; align-items: center; gap: 1rem; padding: 0.75rem; border-radius: var(--radius-md); background: var(--gray-50); transition: var(--transition-fast); }
.activity-item:hover { background: var(--gray-100); }
.activity-icon { width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.activity-icon.completed { background: rgba(16, 185, 129, 0.1); color: var(--success); }
.activity-icon.updated { background: rgba(59, 130, 246, 0.1); color: var(--info); }
.activity-content { flex: 1; }
.activity-content p { font-size: 0.9rem; color: var(--gray-700); margin-bottom: 0.25rem; }
.activity-time { font-size: 0.8rem; color: var(--gray-500); }

.projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 1.5rem; }

.project-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); border-color: var(--primary-light); }

.project-header { padding: 1.5rem; border-bottom: 1px solid var(--gray-100); display: flex; justify-content: space-between; align-items: flex-start; }
.project-title-section { flex: 1; }
.project-title { font-size: 1.25rem; font-weight: 700; color: var(--gray-900); margin-bottom: 0.5rem; }
.project-client { display: flex; align-items: center; gap: 0.5rem; color: var(--gray-600); font-size: 0.9rem; }
.project-client i { color: var(--primary); }
.project-actions-menu { opacity: 0; transition: var(--transition-fast); }
.project-card:hover .project-actions-menu { opacity: 1; }

.btn-icon { width: 32px; height: 32px; border-radius: var(--radius); border: none; background: var(--gray-100); color: var(--gray-600); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: var(--transition-fast); }
.btn-icon:hover { background: var(--gray-200); color: var(--gray-800); }

.project-body { padding: 1.5rem; }
.project-description { color: var(--gray-700); font-size: 0.95rem; line-height: 1.6; margin-bottom: 1rem; }
.project-meta { display: flex; gap: 0.5rem; margin-bottom: 1.25rem; flex-wrap: wrap; }

.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.875rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.planning { background: rgba(245, 158, 11, 0.1); color: #d97706; }
.status-badge.in-progress { background: rgba(59, 130, 246, 0.1); color: #1d4ed8; }
.status-badge.testing { background: rgba(168, 85, 247, 0.1); color: #7c3aed; }
.status-badge.completed { background: rgba(16, 185, 129, 0.1); color: #059669; }

.priority-badge { display: inline-flex; align-items: center; padding: 0.25rem 0.75rem; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.priority-badge.high { background: rgba(239, 68, 68, 0.1); color: #dc2626; }
.priority-badge.medium { background: rgba(245, 158, 11, 0.1); color: #d97706; }
.priority-badge.low { background: rgba(16, 185, 129, 0.1); color: #059669; }

.progress-bar-container { display: flex; flex-direction: column; gap: 0.5rem; }
.progress-header { display: flex; justify-content: space-between; align-items: center; }
.progress-label { font-size: 0.85rem; color: var(--gray-600); font-weight: 500; }
.progress-text { font-size: 0.875rem; font-weight: 700; color: var(--gray-700); }
.progress-bar { height: 8px; background: var(--gray-200); border-radius: 999px; overflow: hidden; }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--secondary)); border-radius: 999px; transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1); }
.progress-fill.success { background: linear-gradient(90deg, var(--success), #059669); }
.progress-fill.warning { background: linear-gradient(90deg, var(--warning), #d97706); }

.project-footer { display: flex; justify-content: space-between; align-items: center; margin-top: 1.25rem; padding-top: 1.25rem; border-top: 1px solid var(--gray-100); }
.project-dates { font-size: 0.85rem; color: var(--gray-600); }
.project-dates i { margin-right: 0.25rem; }
.project-team { display: flex; align-items: center; }

.team-avatar { width: 32px; height: 32px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--secondary)); color: white; display: flex; align-items: center; justify-content: center; font-size: 0.75rem; font-weight: 600; border: 2px solid white; }
.team-more { font-size: 0.75rem; color: var(--gray-500); margin-left: 0.5rem; }

.loading-state { grid-column: 1 / -1; text-align: center; padding: 4rem 2rem; color: var(--gray-500); }
.loading-state i { font-size: 2rem; margin-bottom: 1rem; animation: spin 1s linear infinite; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.empty-state { grid-column: 1 / -1; text-align: center; padding: 4rem 2rem; color: var(--gray-500); }
.empty-state i { font-size: 4rem; margin-bottom: 1rem; opacity: 0.5; }
.empty-state h3 { font-size: 1.5rem; margin-bottom: 0.5rem; color: var(--gray-700); }

.requirements-container { display: grid; grid-template-columns: 1fr 350px; gap: 2rem; }
.requirements-form { background: white; padding: 2rem; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.form-hint { display: block; margin-top: 0.5rem; font-size: 0.85rem; color: var(--gray-500); }
.requirements-sidebar { display: flex; flex-direction: column; gap: 1.5rem; }

.info-card { background: white; padding: 1.75rem; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.info-card.gradient { background: linear-gradient(135deg, var(--primary), var(--secondary)); color: white; }
.info-icon { width: 56px; height: 56px; background: linear-gradient(135deg, var(--primary), var(--secondary)); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-size: 1.75rem; color: white; margin-bottom: 1rem; }
.info-card h3 { font-size: 1.125rem; font-weight: 700; margin-bottom: 1rem; }
.info-list { list-style: none; }
.info-list li { padding: 0.5rem 0; display: flex; align-items: flex-start; gap: 0.75rem; }
.info-list i { color: var(--success); margin-top: 0.25rem; }
.info-card.gradient i { color: rgba(255, 255, 255, 0.9); }
.info-card.gradient .small { opacity: 0.9; font-size: 0.9rem; margin-top: 0.5rem; }

.timeline-container { background: white; padding: 2rem; border-radius: var(--radius-lg); box-shadow: var(--shadow); max-width: 900px; }
.timeline-date-group { margin-bottom: 2rem; }
.timeline-date-group:last-child { margin-bottom: 0; }
.timeline-date-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--gray-200); }
.timeline-date { font-weight: 700; color: var(--gray-800); font-size: 1.1rem; }
.timeline-count { font-size: 0.85rem; color: var(--gray-500); background: var(--gray-100); padding: 0.25rem 0.75rem; border-radius: 999px; }
.timeline-item { position: relative; padding-left: 3rem; padding-bottom: 2rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before { content: ''; position: absolute; left: 9px; top: 30px; bottom: 0; width: 2px; background: var(--gray-200); }
.timeline-item:last-child::before { display: none; }
.timeline-dot { position: absolute; left: 0; top: 4px; width: 20px; height: 20px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--secondary)); box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1); }
.timeline-content { background: var(--gray-50); padding: 1.25rem; border-radius: var(--radius-md); }
.timeline-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.5rem; }
.timeline-header h4 { font-size: 1.1rem; font-weight: 600; color: var(--gray-900); }
.timeline-time { font-size: 0.85rem; color: var(--gray-600); }
.timeline-project { display: flex; align-items: center; gap: 0.5rem; color: var(--primary); font-size: 0.9rem; font-weight: 500; margin-bottom: 0.75rem; }
.timeline-description { color: var(--gray-700); font-size: 0.95rem; line-height: 1.6; }
.timeline-author { display: inline-flex; align-items: center; gap: 0.25rem; font-size: 0.8rem; color: var(--gray-500); margin-top: 0.5rem; }

.admin-tabs { display: flex; gap: 0.75rem; margin-bottom: 2rem; border-bottom: 2px solid var(--gray-200); flex-wrap: wrap; }
.tab-btn { padding: 0.875rem 1.5rem; background: none; border: none; border-bottom: 3px solid transparent; color: var(--gray-600); font-weight: 600; cursor: pointer; transition: var(--transition); display: flex; align-items: center; gap: 0.5rem; position: relative; }
.tab-btn:hover { color: var(--primary); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-badge { background: var(--danger); color: white; font-size: 0.7rem; padding: 0.15rem 0.4rem; border-radius: 999px; min-width: 18px; text-align: center; }

.admin-tab-content { display: none; }
.admin-tab-content.active { display: block; }

.requests-grid { display: grid; gap: 1.5rem; }
.request-card { background: white; border-radius: var(--radius-lg); box-shadow: var(--shadow); overflow: hidden; }
.request-header { padding: 1.5rem; background: var(--gray-50); display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--gray-200); }
.request-header h3 { font-size: 1.25rem; font-weight: 700; color: var(--gray-900); }
.request-date { font-size: 0.85rem; color: var(--gray-500); display: block; margin-top: 0.25rem; }
.badge-warning { background: rgba(245, 158, 11, 0.1); color: #d97706; padding: 0.375rem 0.875rem; border-radius: 999px; font-size: 0.8rem; font-weight: 600; }
.request-body { padding: 1.5rem; }
.request-info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin-bottom: 1.5rem; }
.request-info-item { display: flex; align-items: flex-start; gap: 0.75rem; }
.request-info-item i { color: var(--primary); margin-top: 0.25rem; }
.request-info-item label { display: block; font-size: 0.75rem; color: var(--gray-500); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 0.25rem; }
.request-info-item p { color: var(--gray-800); font-weight: 500; }
.request-section { margin-bottom: 1.5rem; }
.request-section label { display: block; font-size: 0.875rem; font-weight: 600; color: var(--gray-700); margin-bottom: 0.5rem; }
.request-section p { color: var(--gray-700); line-height: 1.6; }
.features-list { list-style: none; padding-left: 1.5rem; }
.features-list li { position: relative; padding: 0.25rem 0; color: var(--gray-700); }
.features-list li::before { content: '•'; color: var(--primary); font-weight: bold; position: absolute; left: -1rem; }
.request-links { margin-top: 1rem; padding: 1rem; background: var(--gray-50); border-radius: var(--radius); }
.request-links label { display: block; font-size: 0.875rem; font-weight: 600; color: var(--gray-700); margin-bottom: 0.5rem; }
.links-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.link-tag { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.5rem 0.75rem; background: white; border: 1px solid var(--gray-200); border-radius: var(--radius); color: var(--primary); text-decoration: none; font-size: 0.85rem; transition: var(--transition-fast); }
.link-tag:hover { background: var(--primary); color: white; border-color: var(--primary); }
.request-actions { padding: 1.5rem; background: var(--gray-50); display: flex; gap: 1rem; border-top: 1px solid var(--gray-200); flex-wrap: wrap; }

.btn-success { flex: 1; min-width: 150px; padding: 0.75rem 1.5rem; background: linear-gradient(135deg, var(--success), #059669); color: white; border: none; border-radius: var(--radius-md); font-weight: 600; cursor: pointer; transition: var(--transition); display: flex; align-items: center; justify-content: center; gap: 0.5rem; }
.btn-success:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-danger { flex: 1; min-width: 150px; padding: 0.75rem 1.5rem; background: linear-gradient(135deg, var(--danger), #dc2626); color: white; border: none; border-radius: var(--radius-md); font-weight: 600; cursor: pointer; transition: var(--transition); display: flex; align-items: center; justify-content: center; gap: 0.5rem; }
.btn-danger:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-secondary { flex: 1; min-width: 150px; padding: 0.75rem 1.5rem; background: var(--gray-200); color: var(--gray-700); border: none; border-radius: var(--radius-md); font-weight: 600; cursor: pointer; transition: var(--transition); display: flex; align-items: center; justify-content: center; gap: 0.5rem; }
.btn-secondary:hover { background: var(--gray-300); transform: translateY(-2px); }

.data-table { width: 100%; background: white; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); border-collapse: collapse; }
.data-table thead { background: var(--gray-50); }
.data-table th { padding: 1rem 1.5rem; text-align: left; font-weight: 600; color: var(--gray-700); font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.5px; }
.data-table td { padding: 1rem 1.5rem; border-top: 1px solid var(--gray-200); color: var(--gray-700); }
.data-table tbody tr:hover { background: var(--gray-50); }

.client-cell { display: flex; align-items: center; gap: 0.75rem; }
.client-avatar { width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--secondary)); color: white; display: flex; align-items: center; justify-content: center; font-weight: 600; font-size: 0.875rem; }
.badge-blue { background: rgba(59, 130, 246, 0.1); color: #1d4ed8; padding: 0.25rem 0.75rem; border-radius: 999px; font-size: 0.875rem; font-weight: 600; }

.projects-management-header { margin-bottom: 1.5rem; }
.search-filter { display: flex; gap: 1rem; flex-wrap: wrap; }
.search-filter input, .search-filter select { padding: 0.75rem 1rem; border: 2px solid var(--gray-200); border-radius: var(--radius-md); font-size: 0.95rem; min-width: 200px; }
.search-filter input:focus, .search-filter select:focus { outline: none; border-color: var(--primary); }

.progress-bar-small { width: 100px; height: 6px; background: var(--gray-200); border-radius: 999px; overflow: hidden; display: inline-block; margin-right: 0.5rem; }
.progress-fill-small { height: 100%; background: linear-gradient(90deg, var(--primary), var(--secondary)); border-radius: 999px; transition: width 0.3s ease; }
.progress-text-small { font-size: 0.875rem; color: var(--gray-600); font-weight: 500; }

.credentials-container { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }
.settings-card { background: white; padding: 2rem; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.settings-card.warning { background: linear-gradient(135deg, #fffbeb, #fef3c7); border: 1px solid #fcd34d; }
.settings-card h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 0.5rem; display: flex; align-items: center; gap: 0.75rem; }
.settings-card h3 i { color: var(--primary); }
.settings-card.warning h3 i { color: var(--warning); }
.settings-description { color: var(--gray-600); margin-bottom: 1.5rem; font-size: 0.95rem; }
.divider { height: 1px; background: var(--gray-200); margin: 1.5rem 0; }
.form-actions { margin-top: 1.5rem; }

.settings-container { display: grid; gap: 1.5rem; max-width: 800px; }
.settings-options { display: flex; flex-direction: column; gap: 1.25rem; }
.switch-label { display: flex; align-items: center; justify-content: space-between; padding: 0.75rem 0; }
.switch { position: relative; display: inline-block; width: 52px; height: 28px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--gray-300); transition: var(--transition); border-radius: 999px; }
.slider:before { position: absolute; content: ""; height: 20px; width: 20px; left: 4px; bottom: 4px; background-color: white; transition: var(--transition); border-radius: 50%; }
input:checked + .slider { background: linear-gradient(135deg, var(--primary), var(--secondary)); }
input:checked + .slider:before { transform: translateX(24px); }

.modal { display: none; position: fixed; inset: 0; background: rgba(0, 0, 0, 0.5); backdrop-filter: blur(4px); z-index: 1000; padding: 2rem; overflow-y: auto; }
.modal.show { display: flex; align-items: center; justify-content: center; animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal-content { background: white; border-radius: var(--radius-xl); box-shadow: var(--shadow-2xl); width: 100%; max-width: 600px; max-height: 90vh; overflow-y: auto; animation: slideUpModal 0.3s ease; }
.modal-content.large { max-width: 1200px; }
@keyframes slideUpModal { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

.modal-header { padding: 1.5rem 2rem; border-bottom: 1px solid var(--gray-200); display: flex; align-items: center; justify-content: space-between; }
.modal-header h2 { font-size: 1.5rem; font-weight: 700; color: var(--gray-900); }
.modal-close { width: 36px; height: 36px; border-radius: var(--radius); border: none; background: var(--gray-100); color: var(--gray-600); cursor: pointer; transition: var(--transition); display: flex; align-items: center; justify-content: center; }
.modal-close:hover { background: var(--gray-200); color: var(--gray-900); }
.modal-body { padding: 2rem; }

.project-detail-grid { display: grid; grid-template-columns: 1fr 350px; gap: 2rem; }
.detail-main { display: flex; flex-direction: column; gap: 2rem; }
.detail-section h3 { font-size: 1.125rem; font-weight: 700; margin-bottom: 1rem; display: flex; align-items: center; gap: 0.75rem; }
.detail-section h3 i { color: var(--primary); }
.info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.info-item label { display: block; font-size: 0.85rem; color: var(--gray-600); font-weight: 600; margin-bottom: 0.5rem; }
.info-item p { color: var(--gray-900); font-weight: 500; }
.info-description { margin-top: 1.5rem; }
.info-description label { display: block; font-size: 0.85rem; color: var(--gray-600); font-weight: 600; margin-bottom: 0.5rem; }
.info-description p { color: var(--gray-700); line-height: 1.7; }
.info-features { margin-top: 1.5rem; }
.info-features label { display: block; font-size: 0.85rem; color: var(--gray-600); font-weight: 600; margin-bottom: 0.5rem; }
.info-features ul { list-style: none; padding-left: 1.5rem; }
.info-features li { position: relative; padding: 0.25rem 0; color: var(--gray-700); }
.info-features li::before { content: '✓'; color: var(--success); font-weight: bold; position: absolute; left: -1.5rem; }
.links-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.link-card { padding: 1rem; background: var(--gray-50); border: 2px solid var(--gray-200); border-radius: var(--radius-md); display: flex; align-items: center; gap: 0.75rem; text-decoration: none; color: var(--primary); font-weight: 500; transition: var(--transition); }
.link-card:hover { background: var(--gray-100); border-color: var(--primary); }

.tasks-list { display: flex; flex-direction: column; gap: 0.75rem; }
.task-item { display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem; background: var(--gray-50); border-radius: var(--radius-md); border: 1px solid var(--gray-200); }
.task-item.completed { opacity: 0.7; }
.task-item.completed .task-title { text-decoration: line-through; color: var(--gray-500); }
.task-item input[type="checkbox"] { width: 20px; height: 20px; cursor: pointer; }
.task-title { flex: 1; font-size: 0.95rem; }
.task-badge { padding: 0.25rem 0.5rem; border-radius: var(--radius-sm); font-size: 0.75rem; font-weight: 600; }
.task-badge.high { background: rgba(239, 68, 68, 0.1); color: #dc2626; }
.task-badge.medium { background: rgba(245, 158, 11, 0.1); color: #d97706; }
.task-badge.low { background: rgba(16, 185, 129, 0.1); color: #059669; }

.detail-sidebar { background: var(--gray-50); padding: 1.5rem; border-radius: var(--radius-lg); }
.updates-timeline { display: flex; flex-direction: column; gap: 1.5rem; }
.update-item { position: relative; padding-left: 2rem; }
.update-item::before { content: ''; position: absolute; left: 9px; top: 30px; bottom: -24px; width: 2px; background: var(--gray-300); }
.update-item:last-child::before { display: none; }
.update-dot { position: absolute; left: 0; top: 6px; width: 20px; height: 20px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--secondary)); }
.update-content h4 { font-size: 1rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--gray-900); }
.update-content p { color: var(--gray-700); font-size: 0.9rem; line-height: 1.6; margin-bottom: 0.5rem; }
.update-meta { display: flex; gap: 1rem; flex-wrap: wrap; }
.update-time { font-size: 0.8rem; color: var(--gray-500); }
.update-author { font-size: 0.8rem; color: var(--gray-600); display: flex; align-items: center; gap: 0.25rem; }
.text-muted { color: var(--gray-500); font-style: italic; }

.analytics-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.analytics-card { background: white; padding: 1.5rem; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.analytics-card.wide { grid-column: 1 / -1; }
.analytics-card h3 { font-size: 1.125rem; font-weight: 700; margin-bottom: 1.5rem; color: var(--gray-800); }
.analytics-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.analytics-stat { text-align: center; padding: 1rem; background: var(--gray-50); border-radius: var(--radius-md); }
.analytics-stat .stat-number { display: block; font-size: 2rem; font-weight: 800; color: var(--primary); margin-bottom: 0.25rem; }
.analytics-stat .stat-label { font-size: 0.875rem; color: var(--gray-600); }

.completion-rate { text-align: center; padding: 2rem; }
.rate-circle { width: 120px; height: 120px; border-radius: 50%; background: conic-gradient(var(--primary) calc(var(--percentage, 0) * 1%), var(--gray-200) 0); display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem; position: relative; }
.rate-circle::before { content: ''; position: absolute; width: 90px; height: 90px; background: white; border-radius: 50%; }
.rate-percentage { position: relative; z-index: 1; font-size: 1.5rem; font-weight: 800; color: var(--primary); }
.completion-rate p { color: var(--gray-600); font-size: 0.9rem; }

.recent-projects-list { display: flex; flex-direction: column; gap: 1rem; }
.recent-project-item { display: flex; justify-content: space-between; align-items: center; padding: 1rem; background: var(--gray-50); border-radius: var(--radius-md); transition: var(--transition-fast); }
.recent-project-item:hover { background: var(--gray-100); }
.recent-project-info { display: flex; flex-direction: column; }
.recent-project-info strong { color: var(--gray-800); margin-bottom: 0.25rem; }
.recent-project-info span { font-size: 0.875rem; color: var(--gray-600); }

.notification {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 10000;
    min-width: 300px;
    transform: translateX(400px);
    opacity: 0;
    transition: var(--transition);
    border-left: 4px solid var(--info);
}

.notification.show { transform: translateX(0); opacity: 1; }
.notification.success { border-left-color: var(--success); }
.notification.success i { color: var(--success); }
.notification.error { border-left-color: var(--danger); }
.notification.error i { color: var(--danger); }
.notification.info i { color: var(--info); }
.notification i { font-size: 1.25rem; }
.notification span { flex: 1; color: var(--gray-800); font-weight: 500; }

@media (max-width: 1200px) {
    .requirements-container, .project-detail-grid, .credentials-container { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .sidebar { position: fixed; transform: translateX(-100%); transition: var(--transition); z-index: 1000; }
    .form-row { grid-template-columns: 1fr; }
    .info-grid { grid-template-columns: 1fr; }
    .links-grid { grid-template-columns: 1fr; }
    .request-info-grid { grid-template-columns: 1fr; }
    .request-actions { flex-direction: column; }
    .btn-success, .btn-danger, .btn-secondary { width: 100%; }
    .analytics-stats { grid-template-columns: 1fr; }
    .projects-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr; }
    .modal-content { margin: 1rem; max-height: calc(100vh - 2rem); }
    .project-detail-grid { grid-template-columns: 1fr; }
    .detail-sidebar { order: -1; }
}



/* ========================================
   NUEVOS ESTILOS - VERSIÓN 3.0
   ======================================== */

/* Alerta de Credenciales Admin */
.admin-credentials-alert {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    border: 2px solid #f59e0b;
    border-radius: var(--radius-lg);
    padding: 1rem;
    margin-bottom: 1.5rem;
    animation: slideDown 0.5s ease;
}

.admin-credentials-alert .alert-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.admin-credentials-alert i {
    font-size: 2rem;
    color: #d97706;
}

.admin-credentials-alert strong {
    display: block;
    color: #92400e;
    margin-bottom: 0.25rem;
}

.admin-credentials-alert p {
    margin: 0;
    color: #78350f;
    font-family: monospace;
    font-size: 0.9rem;
}

.admin-credentials-alert small {
    color: #92400e;
    opacity: 0.8;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Badge en navegación */
.nav-badge {
    background: var(--danger);
    color: white;
    font-size: 0.7rem;
    padding: 0.15rem 0.4rem;
    border-radius: 999px;
    margin-left: auto;
    min-width: 18px;
    text-align: center;
}

/* Header Actions */
.header-actions {
    display: flex;
    gap: 0.75rem;
}

/* Mensajes y Chat */
.messages-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 1.5rem;
    height: calc(100vh - 200px);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.conversations-list {
    border-right: 1px solid var(--gray-200);
    overflow-y: auto;
    padding: 1rem;
}

.conversation-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 0.5rem;
}

.conversation-item:hover {
    background: var(--gray-50);
}

.conversation-item.unread {
    background: rgba(99, 102, 241, 0.05);
    border-left: 3px solid var(--primary);
}

.conversation-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.conversation-info {
    flex: 1;
    overflow: hidden;
}

.conversation-info h4 {
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.conversation-info p {
    font-size: 0.8rem;
    color: var(--gray-500);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.conversation-time {
    font-size: 0.75rem;
    color: var(--gray-400);
}

.chat-area {
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
}

.chat-placeholder {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
}

.chat-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.chat-header {
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: 1rem;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem 0;
}

.message {
    max-width: 70%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-lg);
    position: relative;
}

.message.sent {
    align-self: flex-end;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-bottom-right-radius: 4px;
}

.message.received {
    align-self: flex-start;
    background: var(--gray-100);
    color: var(--gray-800);
    border-bottom-left-radius: 4px;
}

.message-time {
    font-size: 0.7rem;
    opacity: 0.7;
    margin-top: 0.25rem;
    display: block;
}

.chat-input-area {
    display: flex;
    gap: 0.75rem;
    padding-top: 1rem;
    border-top: 1px solid var(--gray-200);
}

.chat-input-area input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
}

.chat-input-area input:focus {
    outline: none;
    border-color: var(--primary);
}

/* Modal de Chat */
.chat-modal .modal-content {
    max-width: 800px;
    height: 80vh;
}

.chat-modal .modal-body {
    display: flex;
    flex-direction: column;
    height: calc(80vh - 80px);
    padding: 0;
}

/* Archivos Adjuntos */
.files-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
}

.file-item i {
    color: var(--primary);
    font-size: 1.25rem;
}

.file-name {
    flex: 1;
    font-size: 0.9rem;
    color: var(--gray-700);
}

.file-upload-area {
    position: relative;
}

.file-upload-area input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

/* Zona de Peligro */
.danger-zone {
    border: 2px solid var(--danger);
    background: rgba(239, 68, 68, 0.05);
}

.danger-zone h3 {
    color: var(--danger);
}

.danger-actions {
    display: flex;
    gap: 1rem;
}

.btn-danger {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--danger), #dc2626);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Botón Secundario */
.btn-secondary {
    padding: 0.75rem 1.5rem;
    background: var(--gray-200);
    color: var(--gray-700);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    background: var(--gray-300);
    transform: translateY(-2px);
}

/* Mejoras en Timeline */
.timeline-dot.milestone {
    background: linear-gradient(135deg, var(--success), #059669);
}

.timeline-dot.issue {
    background: linear-gradient(135deg, var(--danger), #dc2626);
}

/* Responsive para mensajes */
@media (max-width: 768px) {
    .messages-container {
        grid-template-columns: 1fr;
    }
    
    .conversations-list {
        border-right: none;
        border-bottom: 1px solid var(--gray-200);
        max-height: 200px;
    }
}

/* Modo Oscuro (preparación) */
body.dark-mode {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --gray-900: #f1f5f9;
    --gray-800: #e2e8f0;
    --gray-700: #cbd5e1;
    --gray-100: #334155;
    --gray-50: #1e293b;
}

body.dark-mode .sidebar {
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
}

body.dark-mode .top-bar {
    background: #1e293b;
    border-color: #334155;
}

body.dark-mode .project-card,
body.dark-mode .stat-card,
body.dark-mode .settings-card {
    background: #1e293b;
    border-color: #334155;
}







/* ==========================
   🌙 DARK MODE REAL
   ========================== */
body.dark-mode {
    --bg-primary: #0f172a;
    --bg-secondary: #020617;
    --gray-900: #e5e7eb;
    --gray-800: #d1d5db;
    --gray-700: #9ca3af;
    --gray-600: #9ca3af;
    background: var(--bg-secondary);
    color: var(--gray-900);
}

body.dark-mode .main-content,
body.dark-mode .content-section,
body.dark-mode .top-bar {
    background: var(--bg-secondary);
}

body.dark-mode .card,
body.dark-mode .stat-card,
body.dark-mode .recent-activity-section,
body.dark-mode .project-card {
    background: #020617;
    color: #e5e7eb;
    border-color: #1e293b;
}

body.dark-mode input,
body.dark-mode textarea,
body.dark-mode select {
    background: #020617;
    color: #e5e7eb;
    border-color: #1e293b;
}























/* ========================================
   ADMIN MODE - ESTILOS LIMPIOS
   ======================================== */
body.admin-mode .sidebar {
    background: linear-gradient(180deg, #1e1b4b 0%, #312e81 100%);
}

body.admin-mode .user-role {
    color: #fbbf24;
    font-weight: 600;
}

body.admin-mode .user-role::after {
    content: " 👑";
    margin-left: 4px;
}

body.admin-mode .section-header h2 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

body.admin-mode .section-header h2::after {
    content: "ADMIN";
    font-size: 0.65rem;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

body.admin-mode .stat-card {
    border-left: 4px solid #f59e0b;
}

body.admin-mode .nav-item.admin-only {
    background: rgba(251, 191, 36, 0.1);
}

body.admin-mode .nav-item.admin-only.active {
    background: rgba(251, 191, 36, 0.2);
    border-left-color: #fbbf24;
}





/* Botón de eliminar en tabla de administración */
.btn-icon.btn-delete {
    color: var(--danger);
    transition: all 0.2s ease;
}

.btn-icon.btn-delete:hover {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    transform: scale(1.1);
}

/* Asegurar que los botones de acción estén en línea */
.data-table td:last-child {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

















/* Estilos para enlaces y tareas en el modal */
.link-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.link-card:hover {
    background: var(--gray-100);
    border-color: var(--primary);
}

.link-card a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.link-card a:hover {
    text-decoration: underline;
}

.task-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.task-item:hover {
    background: var(--gray-100);
}

.task-item.completed {
    opacity: 0.7;
}

.task-item.completed .task-title {
    text-decoration: line-through;
    color: var(--gray-500);
}

/* Formularios dentro del modal */
.detail-section form {
    background: var(--gray-50);
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-top: 0.5rem;
}

.detail-section form .form-row {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.detail-section form .form-group {
    margin-bottom: 0;
}

.detail-section form input,
.detail-section form select {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
}

.detail-section form input:focus,
.detail-section form select:focus {
    outline: none;
    border-color: var(--primary);
}

/* NUEVO - Mostrar siempre el botón de eliminar en tablas */
.data-table .btn-icon.btn-delete {
    opacity: 1;
    color: #ef4444;
}

.data-table .btn-icon.btn-delete:hover {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    transform: scale(1.1);
}

.btn-icon.btn-delete:hover {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}






/* Botón de eliminar en tabla de administración */
.btn-icon.btn-delete {
    color: #ef4444;
    transition: all 0.2s ease;
}

.btn-icon.btn-delete:hover {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    transform: scale(1.1);
}

/* Asegurar que los botones de acción estén en línea */
.data-table td:last-child {
    display: table-cell;
}

.data-table td:last-child > div {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    align-items: center;
}

/* Estilo para la tabla con scroll horizontal en móviles */
.projects-management {
    width: 100%;
    overflow-x: auto;
}