/* ================================
   SynchIntro App Styles
   ================================ */

/* CSS Custom Properties */
:root {
    /* Colors */
    --color-primary: #0A9933;
    --color-primary-hover: #078a2c;
    --color-primary-light: #e6f5eb;
    --color-secondary: #1a1a2e;

    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-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;

    /* Surfaces */
    --color-surface: #ffffff;
    --color-background: #f9fafb;
    --color-sidebar: #1a1a2e;
    --color-sidebar-hover: #252540;

    /* Text */
    --color-text: #111827;
    --color-text-secondary: #6b7280;
    --color-text-muted: #9ca3af;
    --color-text-inverse: #ffffff;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* Layout */
    --sidebar-width: 260px;
    --header-height: 64px;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-background);
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
}

/* ================================
   Loading Screen
   ================================ */
.loading-screen {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    z-index: 9999;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-screen p {
    margin-top: var(--spacing-4);
    color: var(--color-text-secondary);
}

/* ================================
   Auth Container
   ================================ */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-sidebar) 0%, #0d2818 100%);
    padding: var(--spacing-4);
}

.auth-card {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 420px;
    padding: var(--spacing-8);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-8);
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-4);
}

.auth-logo svg {
    width: 40px;
    height: 40px;
}

.auth-logo span {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text);
}

.auth-header h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-2);
}

.auth-header p {
    color: var(--color-text-secondary);
}

.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: var(--spacing-6);
}

.auth-tab {
    flex: 1;
    padding: var(--spacing-3);
    text-align: center;
    font-weight: 500;
    color: var(--color-text-secondary);
    border: none;
    background: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: var(--transition-base);
}

.auth-tab:hover {
    color: var(--color-text);
}

.auth-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.auth-social {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-6);
}

.btn-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-3);
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    background: var(--color-surface);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
    transition: var(--transition-base);
}

.btn-social:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

.btn-social svg {
    width: 20px;
    height: 20px;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.auth-divider::before,
.auth-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--gray-200);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
}

.form-group input {
    padding: var(--spacing-3) var(--spacing-4);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: var(--font-size-base);
    transition: var(--transition-base);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group input::placeholder {
    color: var(--color-text-muted);
}

.auth-footer {
    margin-top: var(--spacing-6);
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.auth-footer a {
    color: var(--color-primary);
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

.auth-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-4);
    display: none;
}

.auth-error.show {
    display: block;
}

/* ================================
   Main App Layout
   ================================ */
.main-app {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--color-sidebar);
    color: var(--color-text-inverse);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}

.sidebar-header {
    padding: var(--spacing-5);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header .logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.sidebar-nav {
    flex: 1;
    padding: var(--spacing-4);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius);
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition-base);
}

.nav-item:hover {
    background: var(--color-sidebar-hover);
    color: var(--color-text-inverse);
}

.nav-item.active {
    background: var(--color-primary);
    color: var(--color-text-inverse);
}

.nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* Sidebar Upgrade Card */
.sidebar-upgrade {
    padding: var(--spacing-4);
}

.upgrade-card {
    background: linear-gradient(135deg, rgba(10, 153, 51, 0.2) 0%, rgba(10, 153, 51, 0.1) 100%);
    border: 1px solid rgba(10, 153, 51, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
}

.upgrade-card h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
}

.upgrade-card p {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-3);
    line-height: 1.5;
}

.btn-upgrade {
    display: block;
    width: 100%;
    padding: var(--spacing-2) var(--spacing-3);
    background: var(--color-primary);
    color: white;
    text-align: center;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    transition: var(--transition-base);
}

.btn-upgrade:hover {
    background: var(--color-primary-hover);
}

/* Sidebar User */
.sidebar-user {
    padding: var(--spacing-4);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.user-details {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.user-plan {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.6);
}

.btn-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: rgba(255, 255, 255, 0.6);
    border-radius: var(--radius);
    transition: var(--transition-base);
}

.btn-icon:hover {
    background: var(--color-sidebar-hover);
    color: var(--color-text-inverse);
}

.btn-icon svg {
    width: 18px;
    height: 18px;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: var(--spacing-8);
    min-height: 100vh;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

/* Page Header */
.page-header {
    margin-bottom: var(--spacing-8);
}

.page-header h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-2);
}

.page-header p {
    color: var(--color-text-secondary);
}

/* ================================
   Buttons
   ================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-5);
    border-radius: var(--radius);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--color-primary-hover);
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-6);
    font-size: var(--font-size-base);
}

.btn-sm {
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-xs);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ================================
   Cards
   ================================ */
.card {
    background: var(--color-surface);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-4);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

/* ================================
   Stats Grid
   ================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-8);
}

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-5);
}

.stat-card .stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-1);
}

.stat-card .stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text);
}

.stat-card .stat-change {
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-1);
}

.stat-card .stat-change.positive {
    color: var(--color-success);
}

.stat-card .stat-change.negative {
    color: var(--color-error);
}

/* ================================
   Pitch Grid
   ================================ */
.pitch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-5);
}

.pitch-card {
    background: var(--color-surface);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-5);
    transition: var(--transition-base);
}

.pitch-card:hover {
    border-color: var(--gray-300);
    box-shadow: var(--shadow-md);
}

.pitch-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--spacing-3);
}

.pitch-card-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
}

.pitch-level-badge {
    padding: var(--spacing-1) var(--spacing-2);
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius);
}

.pitch-card-prospect {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-4);
}

.pitch-card-stats {
    display: flex;
    gap: var(--spacing-4);
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--gray-100);
}

.pitch-stat {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.pitch-stat strong {
    color: var(--color-text);
}

.pitch-card-actions {
    display: flex;
    gap: var(--spacing-2);
    margin-top: var(--spacing-4);
}

/* ================================
   Create Pitch Form
   ================================ */
.create-form {
    max-width: 800px;
}

.form-section {
    background: var(--color-surface);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    margin-bottom: var(--spacing-6);
}

.form-section h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
    padding-bottom: var(--spacing-4);
    border-bottom: 1px solid var(--gray-200);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-4);
}

.form-group {
    margin-bottom: var(--spacing-4);
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-2);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: var(--font-size-base);
    font-family: inherit;
    transition: var(--transition-base);
}

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

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-help {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: var(--spacing-1);
}

/* Pitch Level Selector */
.level-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-4);
}

.level-option {
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-5);
    cursor: pointer;
    transition: var(--transition-base);
}

.level-option:hover {
    border-color: var(--gray-300);
}

.level-option.selected {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.level-option input {
    display: none;
}

.level-option .level-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-2);
}

.level-option .level-name {
    font-weight: 600;
    margin-bottom: var(--spacing-1);
}

.level-option .level-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* ================================
   Empty States
   ================================ */
.empty-state {
    text-align: center;
    padding: var(--spacing-16) var(--spacing-8);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    color: var(--gray-300);
    margin-bottom: var(--spacing-4);
}

.empty-state h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
}

.empty-state p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-6);
}

/* ================================
   Responsive
   ================================ */
@media (max-width: 1024px) {
    .sidebar {
        width: 70px;
    }

    .sidebar-header .logo span,
    .nav-item span,
    .sidebar-upgrade,
    .user-details {
        display: none;
    }

    .sidebar-header {
        padding: var(--spacing-4);
        display: flex;
        justify-content: center;
    }

    .nav-item {
        justify-content: center;
        padding: var(--spacing-3);
    }

    .sidebar-user {
        justify-content: center;
    }

    .main-content {
        margin-left: 70px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .level-selector {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ================================
   Utilities
   ================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-success { color: var(--color-success); }
.text-error { color: var(--color-error); }
.text-muted { color: var(--color-text-muted); }

.mt-2 { margin-top: var(--spacing-2); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-2 { gap: var(--spacing-2); }
.gap-4 { gap: var(--spacing-4); }

.hidden { display: none !important; }