/* ============================================
   Financial AI Agent - Global Styles
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
    --bg-primary: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --bg-input: rgba(0, 0, 0, 0.3);
    --border-subtle: rgba(255, 255, 255, 0.1);
    --border-active: rgba(0, 210, 255, 0.3);
    --text-primary: #fff;
    --text-secondary: #8892b0;
    --text-accent: #00d2ff;
    --accent-gradient: linear-gradient(135deg, #00d2ff 0%, #3a7bd5 100%);
    --accent-glow: 0 4px 15px rgba(0, 210, 255, 0.3);
    --accent-glow-hover: 0 8px 25px rgba(0, 210, 255, 0.5);
    --success: #00ff87;
    --warning: #ffc107;
    --danger: #ff4d4d;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
}

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

img { max-width: 100%; display: block; }

/* ---------- Layout ---------- */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

@media (max-width: 1024px) {
    .grid { grid-template-columns: 1fr; }
    .grid-3 { grid-template-columns: 1fr 1fr; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ---------- Typography ---------- */
h1 { font-size: 28px; font-weight: 700; }
h2 { font-size: 24px; font-weight: 600; margin-bottom: 20px; }
h3 { font-size: 20px; font-weight: 600; color: var(--text-accent); margin-bottom: 15px; }
h4 { font-size: 16px; font-weight: 600; }

.text-accent { color: var(--text-accent); }
.text-secondary { color: var(--text-secondary); }
.text-center { text-align: center; }

/* ---------- Buttons ---------- */
.btn {
    padding: 10px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-gradient);
    color: var(--text-primary);
    box-shadow: var(--accent-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--accent-glow-hover);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
    backdrop-filter: blur(10px);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #ff6b6b 100%);
    color: var(--text-primary);
}
.btn-danger:hover { transform: translateY(-2px); }

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.08); color: var(--text-primary); }

.btn-sm { padding: 6px 14px; font-size: 12px; border-radius: var(--radius-sm); }
.btn-lg { padding: 14px 32px; font-size: 16px; }

.btn:active { transform: scale(0.98); }

/* ---------- Forms ---------- */
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    transition: var(--transition);
}
.form-control:focus {
    outline: none;
    border-color: var(--text-accent);
    box-shadow: 0 0 0 3px rgba(0, 210, 255, 0.1);
}
.form-control::placeholder { color: rgba(136, 146, 176, 0.6); }

select.form-control { cursor: pointer; }
select.form-control option { background: #1a1a2e; color: var(--text-primary); }

.form-row { display: flex; gap: 15px; }
.form-row .form-group { flex: 1; }

/* ---------- Cards ---------- */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin: 16px 0;
    border: 1px solid var(--border-subtle);
    backdrop-filter: blur(20px);
    transition: var(--transition);
}
.card:hover { border-color: var(--border-active); }

.card-glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 16px;
}

/* ---------- Badges ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    gap: 4px;
}
.badge-success { background: rgba(0, 255, 135, 0.15); color: var(--success); }
.badge-warning { background: rgba(255, 193, 7, 0.15); color: var(--warning); }
.badge-danger { background: rgba(255, 77, 77, 0.15); color: var(--danger); }
.badge-info { background: rgba(0, 210, 255, 0.15); color: var(--text-accent); }

/* ---------- Tables ---------- */
.table-wrapper { overflow-x: auto; border-radius: var(--radius-md); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--border-subtle); }
th {
    color: var(--text-accent);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: rgba(0, 0, 0, 0.2);
}
tr:hover { background: rgba(255, 255, 255, 0.03); }
tr:last-child td { border-bottom: none; }

/* ---------- Result Display ---------- */
.result-card {
    background: linear-gradient(135deg, rgba(0, 210, 255, 0.08) 0%, rgba(0, 255, 135, 0.08) 100%);
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid rgba(0, 210, 255, 0.2);
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 16px;
}
.result-item { text-align: center; }
.result-value {
    font-size: 32px;
    font-weight: 700;
    background: linear-gradient(90deg, #00d2ff, #00ff87);
    -webkit-background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.result-label {
    color: var(--text-secondary);
    font-size: 12px;
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

@media (max-width: 768px) {
    .result-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- Toast ---------- */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 14px 24px;
    background: var(--accent-gradient);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-weight: 600;
    z-index: 9999;
    transform: translateX(calc(100% + 30px));
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}
.toast.show { transform: translateX(0); }
.toast.error { background: linear-gradient(135deg, var(--danger) 0%, #ff6b6b 100%); }
.toast.success { background: linear-gradient(135deg, #00c853 0%, #00ff87 100%); }

/* ---------- Loading ---------- */
.skeleton {
    background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0.05) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}
@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--text-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Animations ---------- */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.animate-fade-in { animation: fadeIn 0.4s ease-out; }
.animate-fade-in-up { animation: fadeInUp 0.5s ease-out; }
.animate-slide-in { animation: slideInLeft 0.4s ease-out; }

/* Stagger children */
.stagger > *:nth-child(1) { animation-delay: 0.05s; }
.stagger > *:nth-child(2) { animation-delay: 0.1s; }
.stagger > *:nth-child(3) { animation-delay: 0.15s; }
.stagger > *:nth-child(4) { animation-delay: 0.2s; }
.stagger > *:nth-child(5) { animation-delay: 0.25s; }

/* ---------- Utilities ---------- */
.hidden { display: none !important; }
.invisible { visibility: hidden; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { display: flex; flex-direction: column; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.p-4 { padding: 16px; }
.p-6 { padding: 24px; }
.w-full { width: 100%; }
.text-sm { font-size: 13px; }
.text-xs { font-size: 12px; }
.font-mono { font-family: 'SF Mono', 'Fira Code', monospace; }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.05); }
::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.25); }

/* ---------- Empty States ---------- */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}
.empty-state svg { opacity: 0.3; margin-bottom: 16px; }
.empty-state h3 { color: var(--text-secondary); margin-bottom: 8px; }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    h1 { font-size: 22px; }
    h2 { font-size: 20px; }
    .card { padding: 16px; margin: 12px 0; }
    .result-value { font-size: 24px; }
}