/* ==========================================================================
   Master Site Design System
   Shared foundation for all portal applications (tradebot, hub, etc.)
   ========================================================================== */

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a24;
    --card-bg: #16161f;
    --border-color: #2a2a3a;
    --text-primary: #ffffff;
    --text-secondary: #e0e0e0;
    --text-muted: #888;
    --primary-color: #10b981;
    --secondary-color: #059669;
    --accent-color: #34d399;
    --warning-color: #f59e0b;
    --success-color: #22c55e;
    --danger-color: #ef4444;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    z-index: 100;
}

.header-top {
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-img {
    height: 36px;
    width: auto;
    object-fit: contain;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 600;
}

.logo-version {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    margin-left: 0.5rem;
}

/* Header Actions (Portal / Sign Out) */
.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-link {
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

.header-link:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Main Content */
.main {
    flex: 1;
    padding: 2rem;
    width: 100%;
}

/* Page Header */
.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

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

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

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

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.625rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--primary-color);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.badge-info {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

/* Footer */
.footer {
    padding: 1.5rem 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    border-top: 1px solid var(--border-color);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .header-top {
        padding: 1rem;
        justify-content: flex-start;
        gap: 0.5rem;
    }

    .header-actions {
        display: none;
    }

    .user-badge-dropdown.open {
        display: none;
    }

    .main {
        padding: 1rem;
    }
}

/* ==========================================================================
   User Badge Dropdown
   ========================================================================== */

.user-badge {
    position: relative;
}

.user-badge-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: box-shadow 0.2s;
}

.user-badge-avatar:hover {
    box-shadow: 0 0 0 2px var(--bg-primary), 0 0 0 4px var(--primary-color);
}

.user-badge-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 220px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    z-index: 200;
    overflow: hidden;
}

.user-badge-dropdown.open {
    display: block;
}

.user-badge-dropdown-header {
    padding: 0.875rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

.user-badge-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.user-badge-email {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.125rem;
}

.user-badge-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: background 0.15s;
}

.user-badge-dropdown-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    text-decoration: none;
}

.user-badge-dropdown-item.danger:hover {
    color: var(--danger-color);
}

.user-badge-dropdown-item svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* ==========================================================================
   Navigation + Hamburger Menu
   ========================================================================== */

/* Desktop Nav Bar */
.nav {
    display: flex;
    gap: 0;
    padding: 0 2rem;
    border-top: 1px solid var(--border-color);
}

.nav-link {
    padding: 0.875rem 1.25rem;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-link.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.nav-link svg {
    width: 16px;
    height: 16px;
}

/* Disabled Nav Link */
.nav-disabled {
    padding: 0.875rem 1.25rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0.4;
    cursor: not-allowed;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    padding: 0.875rem 1.25rem;
    color: var(--text-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s;
}

.nav-dropdown-toggle:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-dropdown-toggle.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.nav-dropdown-toggle svg {
    width: 16px;
    height: 16px;
}

.nav-dropdown-count {
    background: var(--primary-color);
    color: #fff;
    font-size: 0.6875rem;
    font-weight: 600;
    min-width: 18px;
    height: 18px;
    line-height: 18px;
    text-align: center;
    border-radius: 9px;
    padding: 0 5px;
}

.nav-dropdown-chevron {
    transition: transform 0.2s;
}

.nav-dropdown.open .nav-dropdown-chevron {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 100;
    min-width: 200px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 0.5rem 0.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.nav-dropdown.open .nav-dropdown-menu {
    display: block;
}

.nav-dropdown-menu .nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border-bottom: none;
    border-left: 3px solid transparent;
    width: 100%;
    white-space: nowrap;
}

.nav-dropdown-menu .nav-link:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-dropdown-menu .nav-link.active {
    border-left-color: var(--primary-color);
    color: var(--primary-color);
    border-bottom-color: transparent;
}

/* Desktop Dropdown Backdrop */
.nav-dropdown-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 90;
}

.nav-dropdown-backdrop.visible {
    display: block;
}

/* Hamburger Toggle Button */
.hamburger-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    line-height: 0;
}

.hamburger-toggle svg {
    width: 24px;
    height: 24px;
}

.hamburger-toggle .icon-close {
    display: none;
}

.hamburger-toggle .icon-menu {
    display: block;
}

body.mobile-nav-open .hamburger-toggle .icon-close {
    display: block;
}

body.mobile-nav-open .hamburger-toggle .icon-menu {
    display: none;
}

/* Mobile Nav Backdrop */
.mobile-nav-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 95;
}

body.mobile-nav-open .mobile-nav-backdrop {
    display: block;
}

/* Mobile Nav Actions (Portal / Sign Out inside hamburger) */
.mobile-nav-actions {
    display: none;
}

/* ==========================================================================
   Mobile (<=768px)
   ========================================================================== */
@media (max-width: 768px) {
    .hamburger-toggle {
        display: block;
    }

    .nav {
        display: none;
        flex-direction: column;
        padding: 0;
        border-top: 1px solid var(--border-color);
        max-height: 70vh;
        overflow-y: auto;
        position: relative;
        z-index: 96;
    }

    body.mobile-nav-open .nav {
        display: flex;
    }

    /* Vertical nav links */
    .nav .nav-link {
        border-bottom: 1px solid var(--border-color);
        border-left: 3px solid transparent;
        padding: 0.875rem 1.25rem;
    }

    .nav .nav-link:last-child {
        border-bottom: 1px solid var(--border-color);
    }

    .nav .nav-link.active {
        border-left-color: var(--primary-color);
        border-bottom-color: var(--border-color);
    }

    /* Dropdown becomes inline */
    .nav-dropdown {
        position: static;
    }

    .nav-dropdown-toggle {
        width: 100%;
        border-bottom: 1px solid var(--border-color);
        border-left: 3px solid transparent;
    }

    .nav-dropdown-toggle.active {
        border-left-color: var(--primary-color);
        border-bottom-color: var(--border-color);
    }

    .nav-dropdown-menu {
        position: static;
        width: 100%;
        border: none;
        border-radius: 0;
        box-shadow: none;
        background: var(--bg-tertiary);
        min-width: 0;
    }

    .nav-dropdown-menu .nav-link {
        padding-left: 2.5rem;
        border-bottom: 1px solid var(--border-color);
        border-left: none;
    }

    .nav-dropdown-menu .nav-link.active {
        border-left: none;
        color: var(--primary-color);
    }

    .nav-dropdown-backdrop {
        display: none !important;
    }

    /* Mobile actions at bottom of nav */
    .mobile-nav-actions {
        display: flex;
        flex-direction: column;
        gap: 0;
        border-top: 1px solid var(--border-color);
    }

    .mobile-nav-user {
        padding: 0.75rem 1.25rem;
        font-size: 0.8125rem;
        color: var(--text-muted);
        border-bottom: 1px solid var(--border-color);
    }

    .mobile-nav-actions .header-link {
        padding: 0.75rem 1.25rem;
        border-bottom: 1px solid var(--border-color);
        text-align: left;
    }

    .mobile-nav-actions .header-link:last-child {
        border-bottom: none;
    }

    .mobile-nav-actions .header-link.danger {
        color: var(--danger-color);
        border-color: var(--danger-color);
    }

    .mobile-nav-actions .header-link.danger:hover {
        color: var(--danger-color);
    }
}

/* ==========================================================================
   Desktop (>768px) — force overrides
   ========================================================================== */
@media (min-width: 769px) {
    .nav {
        display: flex !important;
    }

    .hamburger-toggle {
        display: none !important;
    }

    .mobile-nav-backdrop {
        display: none !important;
    }

    .mobile-nav-actions {
        display: none !important;
    }
}