/* ============================================
   DAY TRADE ANALYSIS - PREMIUM DARK THEME
   Inspired by TrendIQ - Professional Trading Platform
   ============================================ */

/* CSS Variables */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-tertiary: #1a1a1a;
    --bg-card: #141414;
    --bg-hover: #1f1f1f;
    
    --accent-green: #00d26a;
    --accent-green-hover: #00b85c;
    --accent-green-glow: rgba(0, 210, 106, 0.15);
    --accent-orange: #ff6b35;
    --accent-red: #ff4757;
    --accent-red-glow: rgba(255, 71, 87, 0.15);
    --accent-blue: #3b82f6;
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    
    --border-color: #2a2a2a;
    --border-light: #333333;
    
    --gradient-green: linear-gradient(135deg, #00d26a 0%, #00a854 100%);
    --gradient-orange: linear-gradient(135deg, #ff6b35 0%, #f7931a 100%);
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-glow-green: 0 0 20px rgba(0, 210, 106, 0.3);
    
    --sidebar-width: 260px;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-green); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--accent-green-hover); }
img { max-width: 100%; height: auto; }

h1, h2, h3, h4, h5, h6 { font-weight: 600; line-height: 1.3; color: var(--text-primary); }
h1 { font-size: 2.5rem; } h2 { font-size: 2rem; } h3 { font-size: 1.5rem; } h4 { font-size: 1.25rem; }
p { color: var(--text-secondary); margin-bottom: 1rem; }

/* LAYOUT */
.app-container { display: flex; min-height: 100vh; }

/* SIDEBAR */
.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    position: fixed;
    top: 0; left: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform var(--transition-normal);
}

.sidebar-header { padding: 1.5rem; border-bottom: 1px solid var(--border-color); }

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.sidebar-logo .logo-icon {
    width: 36px; height: 36px;
    background: var(--gradient-green);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

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

.nav-section-title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    padding: 0 1.5rem;
    margin-bottom: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
    cursor: pointer;
}

.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active { background: var(--accent-green-glow); color: var(--accent-green); border-left-color: var(--accent-green); }
.nav-item i { width: 20px; font-size: 1.1rem; opacity: 0.8; }
.nav-item.active i { opacity: 1; }

.sidebar-footer { padding: 1rem 1.5rem; border-top: 1px solid var(--border-color); }

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.user-info:hover { background: var(--bg-hover); }

.user-avatar {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: var(--gradient-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.user-details { flex: 1; min-width: 0; }
.user-name { font-weight: 500; font-size: 0.9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-plan { font-size: 0.75rem; color: var(--text-muted); }
.user-plan.premium { color: var(--accent-orange); }

/* MAIN CONTENT */
.main-content { flex: 1; margin-left: 260px; min-height: 100vh; background: #0a0a0a; }
.content-wrapper { padding: 2rem; max-width: 1400px; margin: 0 auto; }

.page-header { margin-bottom: 2rem; }
.page-title { font-size: 1.75rem; font-weight: 600; margin-bottom: 0.5rem; }
.page-subtitle { color: var(--text-secondary); font-size: 0.95rem; }

.welcome-header { margin-bottom: 2rem; }
.welcome-greeting { font-size: 1.75rem; font-weight: 600; margin-bottom: 0.25rem; }
.welcome-date { color: var(--text-secondary); font-size: 0.9rem; }

/* CARDS */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all var(--transition-normal);
}

.card:hover { border-color: var(--border-light); }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.card-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 0; }

/* STATS */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 2rem; }

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    width: 48px; height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.stat-icon.green { background: var(--accent-green-glow); color: var(--accent-green); }
.stat-icon.orange { background: rgba(255, 107, 53, 0.15); color: var(--accent-orange); }
.stat-icon.red { background: var(--accent-red-glow); color: var(--accent-red); }
.stat-icon.blue { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }

.stat-content { flex: 1; }
.stat-value { font-size: 1.5rem; font-weight: 700; line-height: 1.2; }
.stat-label { font-size: 0.8rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.05em; }

/* FEATURE CARDS */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; margin-bottom: 2rem; }

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.feature-card:hover { border-color: var(--accent-green); transform: translateY(-2px); box-shadow: var(--shadow-glow-green); }
.feature-card-title { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.5rem; }
.feature-card-desc { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 1.25rem; }

/* PREMIUM BANNER */
.premium-banner {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-card) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.premium-banner-content h4 { font-size: 1rem; margin-bottom: 0.25rem; }
.premium-banner-content p { font-size: 0.85rem; color: var(--text-secondary); margin: 0; }

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-primary { background: var(--gradient-green); color: #000; }
.btn-primary:hover { box-shadow: var(--shadow-glow-green); transform: translateY(-1px); color: #000; }

.btn-secondary { background: var(--bg-tertiary); color: var(--text-primary); border: 1px solid var(--border-color); }
.btn-secondary:hover { background: var(--bg-hover); border-color: var(--border-light); }

.btn-outline { background: transparent; color: var(--accent-green); border: 1px solid var(--accent-green); }
.btn-outline:hover { background: var(--accent-green-glow); }

.btn-orange { background: var(--gradient-orange); color: #fff; }
.btn-orange:hover { box-shadow: 0 0 20px rgba(255, 107, 53, 0.3); transform: translateY(-1px); color: #fff !important; }

.btn-danger { background: var(--accent-red); color: #fff; }
.btn-danger:hover { background: #e63946; }

.btn-sm { padding: 0.5rem 1rem; font-size: 0.8rem; }
.btn-lg { padding: 1rem 2rem; font-size: 1rem; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* FORMS */
.form-group { margin-bottom: 1.25rem; }
.form-label { display: block; font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); margin-bottom: 0.5rem; }

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-control:focus { outline: none; border-color: var(--accent-green); box-shadow: 0 0 0 3px var(--accent-green-glow); }
.form-control::placeholder { color: var(--text-muted); }

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23666' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

textarea.form-control { min-height: 120px; resize: vertical; }

/* TABS */
.tabs { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; border-bottom: 1px solid var(--border-color); }

.tab-btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: -1px;
}

.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active { color: var(--accent-green); border-bottom-color: var(--accent-green); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* UPLOAD */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    background: var(--bg-tertiary);
}

.upload-area:hover, .upload-area.dragover { border-color: var(--accent-green); background: var(--accent-green-glow); }
.upload-area.has-image { padding: 1rem; }
.upload-icon { font-size: 3rem; color: var(--text-muted); margin-bottom: 1rem; }
.upload-text { font-size: 1rem; color: var(--text-secondary); margin-bottom: 0.5rem; }
.upload-hint { font-size: 0.8rem; color: var(--text-muted); }
.upload-preview { max-width: 100%; max-height: 400px; border-radius: var(--radius-md); }

/* TABLES */
.table-container { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--border-color); }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 1rem; text-align: left; border-bottom: 1px solid var(--border-color); }
.table th { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); background: var(--bg-tertiary); }
.table tbody tr { transition: background var(--transition-fast); }
.table tbody tr:hover { background: var(--bg-hover); }
.table tbody tr:last-child td { border-bottom: none; }

/* BADGES */
.badge { display: inline-flex; align-items: center; padding: 0.25rem 0.75rem; font-size: 0.75rem; font-weight: 500; border-radius: 50px; }
.badge-success { background: var(--accent-green-glow); color: var(--accent-green); }
.badge-danger { background: var(--accent-red-glow); color: var(--accent-red); }
.badge-warning { background: rgba(255, 193, 7, 0.15); color: #ffc107; }
.badge-info { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }
.badge-neutral { background: var(--bg-tertiary); color: var(--text-secondary); }

/* LIVE INDICATOR */
.live-indicator { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.75rem; font-weight: 600; color: var(--accent-green); }
.live-indicator::before { content: ''; width: 8px; height: 8px; background: var(--accent-green); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

/* ALERTS */
.alert { padding: 1rem 1.25rem; border-radius: var(--radius-md); margin-bottom: 1rem; display: flex; align-items: flex-start; gap: 0.75rem; }
.alert-success { background: var(--accent-green-glow); border: 1px solid var(--accent-green); color: var(--accent-green); }
.alert-danger { background: var(--accent-red-glow); border: 1px solid var(--accent-red); color: var(--accent-red); }
.alert-warning { background: rgba(255, 193, 7, 0.15); border: 1px solid #ffc107; color: #ffc107; }
.alert-info { background: rgba(59, 130, 246, 0.15); border: 1px solid var(--accent-blue); color: var(--accent-blue); }

/* TOAST */
.toast { position: fixed; top: 1.5rem; right: 1.5rem; padding: 1rem 1.5rem; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); z-index: 9999; animation: slideIn 0.3s ease; }
.toast.success { border-color: var(--accent-green); }
.toast.error { border-color: var(--accent-red); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ANALYSIS RESULT */
.analysis-result { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); overflow: hidden; }
.analysis-header { background: var(--bg-tertiary); padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border-color); display: flex; align-items: center; justify-content: space-between; }
.analysis-body { padding: 1.5rem; }
.analysis-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.analysis-item { background: var(--bg-tertiary); padding: 1rem; border-radius: var(--radius-md); text-align: center; }
.analysis-item-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.5rem; }
.analysis-item-value { font-size: 1.25rem; font-weight: 600; }
.analysis-item-value.bullish { color: var(--accent-green); }
.analysis-item-value.bearish { color: var(--accent-red); }
.analysis-item-value.neutral { color: var(--accent-orange); }

/* AUTH PAGES */
.auth-container { min-height: 100vh; display: flex; }
.auth-left { flex: 1; display: flex; align-items: center; justify-content: center; padding: 2rem; background: var(--bg-primary); }
.auth-right { flex: 1; display: flex; align-items: center; justify-content: center; padding: 2rem; background: var(--bg-secondary); }
.auth-branding { text-align: center; }
.auth-tagline { font-size: 2.5rem; font-weight: 300; font-style: italic; line-height: 1.3; color: var(--text-primary); }
.auth-tagline span { display: block; color: var(--accent-orange); text-decoration: underline; }
.auth-card { width: 100%; max-width: 400px; }
.auth-title { font-size: 1.5rem; margin-bottom: 0.5rem; }
.auth-subtitle { color: var(--text-secondary); margin-bottom: 2rem; }
.auth-divider { display: flex; align-items: center; gap: 1rem; margin: 1.5rem 0; color: var(--text-muted); font-size: 0.85rem; }
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--border-color); }
.auth-footer { text-align: center; margin-top: 1.5rem; color: var(--text-secondary); }

/* PRICING */
.pricing-header { text-align: center; margin-bottom: 3rem; }
.pricing-title { font-size: 2.5rem; margin-bottom: 1rem; }
.pricing-subtitle { font-size: 1.1rem; color: var(--text-secondary); max-width: 600px; margin: 0 auto; }
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; max-width: 800px; margin: 0 auto; }

.pricing-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-xl); padding: 2rem; position: relative; transition: all var(--transition-normal); }
.pricing-card.featured { border-color: var(--accent-green); box-shadow: var(--shadow-glow-green); }
.pricing-card.featured::before { content: 'RECOMENDADO'; position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--accent-orange); color: #fff; font-size: 0.7rem; font-weight: 600; padding: 0.25rem 1rem; border-radius: 50px; }
.pricing-plan-name { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.25rem; }
.pricing-plan-desc { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 1.5rem; }
.pricing-price { margin-bottom: 1.5rem; }
.pricing-amount { font-size: 3rem; font-weight: 700; }
.pricing-period { font-size: 1rem; color: var(--text-secondary); }
.pricing-features { list-style: none; margin-bottom: 2rem; }
.pricing-features li { display: flex; align-items: center; gap: 0.75rem; padding: 0.5rem 0; color: var(--text-secondary); font-size: 0.9rem; }
.pricing-features li::before { content: '✓'; color: var(--accent-green); font-weight: 600; }

/* LOADING */
.spinner { width: 40px; height: 40px; border: 3px solid var(--border-color); border-top-color: var(--accent-green); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.loading-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.8); display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 1rem; z-index: 9999; }
.loading-text { color: var(--text-secondary); font-size: 0.9rem; }

/* EMPTY STATE */
.empty-state { text-align: center; padding: 4rem 2rem; color: var(--text-secondary); }
.empty-state-icon { font-size: 4rem; color: var(--text-muted); margin-bottom: 1rem; }
.empty-state-title { font-size: 1.25rem; color: var(--text-primary); margin-bottom: 0.5rem; }
.empty-state-desc { font-size: 0.9rem; margin-bottom: 1.5rem; }

/* MOBILE HEADER */
.mobile-header { display: none; align-items: center; justify-content: space-between; padding: 1rem; background: var(--bg-secondary); border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 50; }
.menu-toggle { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; background: var(--bg-tertiary); border: 1px solid var(--border-color); border-radius: var(--radius-md); color: var(--text-primary); cursor: pointer; }
.sidebar-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.5); z-index: 99; display: none; }
.sidebar-overlay.open { display: block; }

/* RESPONSIVE */
@media (max-width: 1024px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .mobile-header { display: flex; }
}

@media (max-width: 768px) {
    .content-wrapper { padding: 1rem; }
    .auth-container { flex-direction: column; }
    .auth-left { display: none; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .feature-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .premium-banner { flex-direction: column; text-align: center; gap: 1rem; }
    h1 { font-size: 1.75rem; } h2 { font-size: 1.5rem; }
    .welcome-greeting { font-size: 1.5rem; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .tabs { overflow-x: auto; flex-wrap: nowrap; }
    .tab-btn { flex-shrink: 0; }
}

/* UTILITIES */
.text-center { text-align: center; }
.text-green { color: var(--accent-green); }
.text-red { color: var(--accent-red); }
.text-orange { color: var(--accent-orange); }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 0.5rem; } .mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; } .mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; } .mb-2 { margin-bottom: 1rem; } .mb-3 { margin-bottom: 1.5rem; } .mb-4 { margin-bottom: 2rem; }
.d-flex { display: flex; } .align-center { align-items: center; } .justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; } .gap-2 { gap: 1rem; }
.w-100 { width: 100%; } .hidden { display: none !important; }