/* ============================================
   THEME.CSS - Dark Theme for Trading Webapp
   ============================================ */

/* ============================================
   CSS VARIABLES - COLOR SYSTEM
   ============================================ */

:root {
    /* Background Colors */
    --bg-primary: #0f1419;
    --bg-secondary: #1a1f2e;
    --bg-tertiary: #252b3b;
    --bg-elevated: #2a3142;
    --bg-hover: #2f3749;
    
    /* Text Colors */
    --text-primary: #e4e6eb;
    --text-secondary: #b0b3b8;
    --text-tertiary: #8a8d91;
    --text-disabled: #5a5d61;
    
    /* Accent Colors */
    --accent-primary: #4a9eff;
    --accent-primary-hover: #5db0ff;
    --accent-primary-active: #3a8eef;
    --accent-primary-light: rgba(74, 158, 255, 0.1);
    --accent-primary-muted: rgba(74, 158, 255, 0.3);
    
    /* Success/Buy Colors */
    --color-success: #00d68f;
    --color-success-hover: #00e89f;
    --color-success-bg: rgba(0, 214, 143, 0.1);
    
    /* Danger/Sell Colors */
    --color-danger: #ff4757;
    --color-danger-hover: #ff5867;
    --color-danger-bg: rgba(255, 71, 87, 0.1);
    
    /* Warning Colors */
    --color-warning: #ffa502;
    --color-warning-hover: #ffb732;
    --color-warning-bg: rgba(255, 165, 2, 0.1);
    
    /* Info Colors */
    --color-info: #4a9eff;
    --color-info-hover: #5db0ff;
    --color-info-bg: rgba(74, 158, 255, 0.1);
    
    /* Border Colors */
    --border-primary: #3a3f4b;
    --border-secondary: #2a2f3a;
    --border-light: #4a4f5b;
    
    /* Chart Colors */
    --chart-green: #26a69a;
    --chart-red: #ef5350;
    --chart-grid: #2a2f3a;
    
    /* Shadow */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.6);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ============================================
   BASE STYLES
   ============================================ */

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

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

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1rem;
}

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-primary-hover);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 500;
    line-height: 1.5;
    text-align: center;
    cursor: pointer;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
    white-space: nowrap;
    user-select: none;
}

.btn:active:not(:disabled) {
    transform: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--accent-primary-hover);
    border-color: var(--accent-primary-hover);
    color: white;
}

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

.btn-success:hover:not(:disabled) {
    background-color: var(--color-success-hover);
    border-color: var(--color-success-hover);
    color: white;
}

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

.btn-danger:hover:not(:disabled) {
    background-color: var(--color-danger-hover);
    border-color: var(--color-danger-hover);
    color: white;
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-primary);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-elevated);
    border-color: var(--border-light);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-primary);
    border-color: var(--border-primary);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--bg-tertiary);
    border-color: var(--border-light);
}

.btn-sm {
    padding: 0.375rem 0.875rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1.0625rem;
}

/* ============================================
   CARDS
   ============================================ */

.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.card-elevated {
    background-color: var(--bg-elevated);
    box-shadow: var(--shadow-md);
}

.card-header {
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-primary);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.card-body {
    color: var(--text-secondary);
}

.card-footer {
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-primary);
}

/* ============================================
   INPUTS & FORMS
   ============================================ */

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.625rem 1rem;
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    background-color: var(--bg-elevated);
    box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.1);
}

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

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

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================
   TABLES
   ============================================ */

.table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.table thead {
    background-color: var(--bg-tertiary);
}

.table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-primary);
}

.table td {
    padding: 1rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-secondary);
}

.table tbody tr:hover {
    background-color: var(--bg-hover);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ============================================
   BADGES
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-sm);
}

.badge-primary {
    background-color: var(--color-info-bg);
    color: var(--color-info);
}

.badge-success {
    background-color: var(--color-success-bg);
    color: var(--color-success);
}

.badge-danger {
    background-color: var(--color-danger-bg);
    color: var(--color-danger);
}

.badge-warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
}

/* ============================================
   ALERTS
   ============================================ */

.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    border-left: 4px solid;
    margin-bottom: 1rem;
}

.alert-success {
    background-color: var(--color-success-bg);
    border-color: var(--color-success);
    color: var(--color-success);
}

.alert-danger {
    background-color: var(--color-danger-bg);
    border-color: var(--color-danger);
    color: var(--color-danger);
}

.alert-warning {
    background-color: var(--color-warning-bg);
    border-color: var(--color-warning);
    color: var(--color-warning);
}

.alert-info {
    background-color: var(--color-info-bg);
    border-color: var(--color-info);
    color: var(--color-info);
}

/* ============================================
   UTILITIES
   ============================================ */

.text-primary {
    color: var(--text-primary) !important;
}

.text-secondary {
    color: var(--text-secondary) !important;
}

.text-tertiary {
    color: var(--text-tertiary) !important;
}

.text-success {
    color: var(--color-success) !important;
}

.text-danger {
    color: var(--color-danger) !important;
}

.text-warning {
    color: var(--color-warning) !important;
}

.text-info {
    color: var(--color-info) !important;
}

.bg-primary {
    background-color: var(--bg-primary) !important;
}

.bg-secondary {
    background-color: var(--bg-secondary) !important;
}

.bg-tertiary {
    background-color: var(--bg-tertiary) !important;
}

.bg-elevated {
    background-color: var(--bg-elevated) !important;
}

.border {
    border: 1px solid var(--border-primary);
}

.border-top {
    border-top: 1px solid var(--border-primary);
}

.border-bottom {
    border-bottom: 1px solid var(--border-primary);
}

.border-left {
    border-left: 1px solid var(--border-primary);
}

.border-right {
    border-right: 1px solid var(--border-primary);
}

.rounded {
    border-radius: var(--radius-md);
}

.rounded-sm {
    border-radius: var(--radius-sm);
}

.rounded-lg {
    border-radius: var(--radius-lg);
}

.shadow-sm {
    box-shadow: var(--shadow-sm);
}

.shadow-md {
    box-shadow: var(--shadow-md);
}

.shadow-lg {
    box-shadow: var(--shadow-lg);
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-elevated);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--bg-hover);
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--bg-elevated) var(--bg-secondary);
}