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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #E8F5F7 0%, #FFFFFF 100%);
    min-height: 100vh;
}

/* Auth Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-card {
    background: white;
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.logo {
    font-size: 32px;
    font-weight: 800;
    background: linear-gradient(135deg, #4ECDC4 0%, #44A3D5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
}

.auth-card h2 {
    color: #666;
    margin-bottom: 30px;
}

.auth-card form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.auth-card input {
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
}

.auth-card button {
    padding: 12px;
    background: linear-gradient(135deg, #4ECDC4 0%, #44A3D5 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.auth-card button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(78, 205, 196, 0.3);
}

.auth-card p {
    margin-top: 20px;
    color: #666;
    font-size: 14px;
}

.auth-card a {
    color: #4ECDC4;
    text-decoration: none;
    font-weight: 600;
}

/* Dashboard Layout */
.dashboard {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background: white;
    box-shadow: 2px 0 10px rgba(0,0,0,0.05);
    padding: 30px 20px;
}

.sidebar .logo {
    font-size: 24px;
    margin-bottom: 40px;
    text-align: center;
}

.sidebar nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sidebar nav a {
    padding: 12px 20px;
    color: #666;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
}

.sidebar nav a:hover,
.sidebar nav a.active {
    background: linear-gradient(135deg, #4ECDC4 0%, #44A3D5 100%);
    color: white;
}

.main-content {
    flex: 1;
    padding: 40px;
}

.main-content h1 {
    color: #333;
    margin-bottom: 30px;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.project-card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    cursor: pointer;
    transition: all 0.3s;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(78, 205, 196, 0.2);
}

.project-card h3 {
    color: #333;
    margin-bottom: 10px;
}

.project-card p {
    color: #666;
    font-size: 14px;
}

/* Goal Details */
.goal-details {
    background: white;
    padding: 30px;
    border-radius: 16px;
    margin-top: 20px;
}

button {
    padding: 10px 20px;
    background: #4ECDC4;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
}

button:hover {
    background: #44A3D5;
}

/* ============================================
   DARK MODE
   ============================================ */

body.dark-mode {
    background: #0f0f1a;
    color: #e0e0e0;
}

body.dark-mode .sidebar {
    background: #1a1a2e;
    box-shadow: 2px 0 4px rgba(0, 0, 0, 0.4);
}

body.dark-mode .sidebar-header {
    border-bottom-color: #2a2a4a;
}

body.dark-mode .sidebar-footer {
    border-top-color: #2a2a4a;
    background: #0f0f1a;
}

body.dark-mode .logout-btn {
    background: #1a1a2e;
}

body.dark-mode .logout-btn:hover {
    background: #2a1a1a;
}

body.dark-mode .username-header,
body.dark-mode .nav-text {
    color: #e0e0e0;
}

body.dark-mode .nav-item {
    background: #1a1a2e;
    color: #ccc;
    box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

body.dark-mode .nav-item:hover {
    background: #2a2a4a;
    box-shadow: 0 3px 12px rgba(0,0,0,0.3);
}

body.dark-mode .nav-item.active {
    background: #00BCD4;
    color: white;
}

body.dark-mode .projects-dropdown {
    background: transparent;
}

body.dark-mode .project-item {
    background: #1e1e38;
}

body.dark-mode .project-item:hover {
    background: #2a2a4a;
}

body.dark-mode .project-name {
    color: #ccc;
}

body.dark-mode .main-container {
    background: #0f0f1a;
}

body.dark-mode .goal-card,
body.dark-mode .stat-card-large,
body.dark-mode .project-today-stats,
body.dark-mode .project-stats-summary,
body.dark-mode .week-chart,
body.dark-mode .completed-item,
body.dark-mode .timer-btn,
body.dark-mode .view-control-btn {
    background: #1a1a2e;
    color: #e0e0e0;
}

body.dark-mode .stat-card-large h3 { color: #e0e0e0; }
body.dark-mode .insights-tabs { background: #2a2a4a; }
body.dark-mode .tab-btn.active { background: #0f0f1a; color: #e0e0e0; }
body.dark-mode .stat-summary > div { background: #0f0f1a; border-color: #2a2a4a; }
body.dark-mode .stat-value { color: #e0e0e0; }
body.dark-mode .chart-container { background: #0f0f1a; }
body.dark-mode .breakdown-name { color: #ccc; }
body.dark-mode .breakdown-bar-container { background: #2a2a4a; }
body.dark-mode .breakdown-value { color: #aaa; }

body.dark-mode .goal-title,
body.dark-mode h1, body.dark-mode h2, body.dark-mode h3, body.dark-mode h4 {
    color: #e0e0e0;
}

body.dark-mode .goal-description,
body.dark-mode .goal-deadline,
body.dark-mode .goal-time,
body.dark-mode .text-muted,
body.dark-mode .page-subtitle {
    color: #999;
}

body.dark-mode .progress-bar,
body.dark-mode .project-progress-bar {
    background: #2a2a4a;
}

body.dark-mode .form-input {
    background: #1a1a2e;
    border-color: #2a2a4a;
    color: #e0e0e0;
}

body.dark-mode .form-input::placeholder {
    color: #555;
}

body.dark-mode .auth-card {
    background: #1a1a2e;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

body.dark-mode .auth-card label,
body.dark-mode .auth-card .auth-switch,
body.dark-mode .auth-card .text-muted {
    color: #aaa;
}

body.dark-mode .search-input {
    background: #1a1a2e;
    border-color: #2a2a4a;
    color: #e0e0e0;
}

body.dark-mode .tab-btn {
    background: #2a2a4a;
    color: #aaa;
}

body.dark-mode .empty-state {
    background: #1a1a2e;
}

body.dark-mode .stat-label {
    color: #777;
}

body.dark-mode .stat-value,
body.dark-mode .stat-large {
    color: #e0e0e0;
}

body.dark-mode .goal-card-actions {
    border-top-color: #2a2a4a;
}

/* Dark mode - new elements */
body.dark-mode .timer-display { color:#e0e0e0; }
body.dark-mode .timer-sublabel, body.dark-mode .timer-goal-label { color:#777; }
body.dark-mode .project-stats-summary, body.dark-mode .period-tab { background:#1a1a2e; color:#aaa; }
body.dark-mode .period-tab.active { background:#00BCD4; color:white; }
body.dark-mode .project-main-tabs { background:#2a2a4a; }
body.dark-mode .project-main-tab.active { background:#1a1a2e; color:#e0e0e0; }
body.dark-mode .add-goal-form, body.dark-mode .profile-form { background:#1a1a2e; }
body.dark-mode .form-label { color:#bbb; }
body.dark-mode .form-input { background:#0f0f1a; border-color:#2a2a4a; color:#e0e0e0; }
body.dark-mode .freq-type-tabs { background:#2a2a4a; }
body.dark-mode .freq-tab.active { background:#0f0f1a; color:#e0e0e0; }
body.dark-mode .repeat-btn { background:#0f0f1a; border-color:#2a2a4a; color:#aaa; }
body.dark-mode .repeat-btn.active { background:#00BCD4; border-color:#00BCD4; color:white; }
body.dark-mode .btn-secondary { border-color:#2a2a4a; color:#aaa; }
body.dark-mode .profile-username { color:#e0e0e0; }
body.dark-mode .profile-section-title { color:#e0e0e0; border-bottom-color:#2a2a4a; }
body.dark-mode .goal-card { background:#1a1a2e; }
body.dark-mode .goal-title, body.dark-mode .goal-card-percent { color:#e0e0e0; }
body.dark-mode .goal-card-progress-bar { background:#2a2a4a; }
body.dark-mode .goal-card-time { color:#666; }

/* Dark mode - nav/sidebar */
body.dark-mode .sidebar-nav { background: #0f0f1a; }
body.dark-mode .sidebar-footer { background: #1a1a2e; }

/* Dark mode - project list cards */
body.dark-mode .project-list-outer { background: #0d1a1f; }
body.dark-mode .project-list-card { background: #1a1a2e; box-shadow: 0 1px 6px rgba(0,0,0,0.3); }
body.dark-mode .project-list-name { color: #e0e0e0; }
body.dark-mode .project-list-time { color: #666; }
body.dark-mode .project-list-bar { background: #2a2a4a; }
body.dark-mode .project-list-percent { background: #2a2a4a; color: #aaa; }

/* Dark mode - theme toggle */
body.dark-mode .theme-toggle-pill { background: #1a1a2e; box-shadow: 0 4px 16px rgba(0,0,0,0.4); }

/* Dark mode - search pill */
body.dark-mode .search-input-pill { background: #1a1a2e; border-color: #2a2a4a; color: #e0e0e0; }

/* Dark mode - completed page */
body.dark-mode .completed-banner { background: linear-gradient(135deg, #007B8A 0%, #005F6B 100%); }
body.dark-mode .completed-banner-img { border-color: rgba(255,255,255,0.25); background: rgba(255,255,255,0.06); }