/* ============================================================================
   NEXUS Alliance Portal - Responsive Breakpoints
   Mobile-first premium responsive design
   ============================================================================ */

/* ---- Small mobile (< 480px) ---- */
@media (max-width: 479px) {
    :root {
        --text-7xl: 2rem;
        --text-6xl: 1.75rem;
        --text-5xl: 1.5rem;
        --text-4xl: 1.25rem;
    }

    .hero {
        padding: var(--space-16) var(--space-3) var(--space-10);
        min-height: 70vh;
    }

    .hero-emblem-wrap {
        width: 80px;
        height: 80px;
    }

    .hero-emblem {
        width: 80px;
        height: 80px;
        font-size: var(--text-2xl);
    }

    .hero-title {
        letter-spacing: 6px;
    }

    .hero-portal-name {
        font-size: var(--text-xs);
        letter-spacing: 3px;
    }

    .hero-cta {
        flex-direction: column;
        gap: var(--space-3);
    }

    .hero-cta .btn {
        width: 100%;
    }

    .auth-card {
        padding: var(--space-6) var(--space-4);
    }

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

    .podium,
    .ranking-podium {
        flex-direction: column;
        align-items: center;
    }

    .podium-place,
    .podium-item {
        width: 100%;
        max-width: 280px;
        min-height: auto !important;
        border-radius: var(--radius-lg);
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .toolbar-left, .toolbar-right {
        width: 100%;
        justify-content: stretch;
    }

    .governance-preview {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .internal-features-grid {
        grid-template-columns: 1fr;
    }

    .content-grid {
        grid-template-columns: 1fr;
    }

    .values-grid {
        grid-template-columns: 1fr;
    }

    .structure-grid {
        grid-template-columns: 1fr;
    }

    .home-server-card {
        flex-direction: column;
        text-align: center;
    }

    .home-server-info {
        text-align: center;
    }
}

/* ---- Mobile (< 768px) ---- */
@media (max-width: 767px) {
    /* Header */
    .logo-subtitle {
        display: none;
    }

    .logo-title {
        font-size: var(--text-lg);
        letter-spacing: 3px;
    }

    .logo-emblem {
        width: 36px;
        height: 36px;
        font-size: var(--text-sm);
    }

    /* Navigation - Slide out menu */
    .mobile-menu-btn {
        display: flex;
    }

    .nav-container {
        display: none;
        flex-direction: column;
        width: 100%;
        padding: var(--space-3) 0;
        background: var(--color-bg-secondary);
        border-top: 1px solid var(--color-border);
    }

    .nav-container.open {
        display: flex;
    }

    .nav-group {
        flex-direction: column;
        width: 100%;
    }

    .nav-group-label {
        display: block;
        font-size: var(--text-xs);
        color: var(--color-text-muted);
        text-transform: uppercase;
        letter-spacing: 2px;
        padding: var(--space-3) var(--space-4) var(--space-1);
        font-weight: 600;
    }

    .nav-separator-line {
        width: 100%;
        height: 1px;
        margin: var(--space-2) 0;
    }

    .nav-link {
        padding: var(--space-3) var(--space-5);
        border-bottom: none;
        border-left: 3px solid transparent;
        width: 100%;
    }

    .nav-link.active {
        border-bottom-color: transparent;
        border-left-color: var(--color-gold);
        background: var(--color-gold-subtle);
    }

    .nav-login-btn {
        border: none;
        border-left: 3px solid var(--color-gold);
        border-radius: 0;
        margin-left: 0;
        padding: var(--space-3) var(--space-5);
    }

    .nav-user {
        margin-left: 0;
        border-top: 1px solid var(--color-border-muted);
        padding-top: var(--space-2);
    }

    /* Grids */
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .dashboard-stats {
        grid-template-columns: 1fr 1fr;
    }

    .dashboard-actions {
        flex-direction: column;
    }

    .ranking-toolbar {
        flex-direction: column;
    }

    .profile-details {
        grid-template-columns: 1fr;
    }

    .content-preview {
        grid-template-columns: 1fr;
    }

    .admin-grid {
        grid-template-columns: 1fr;
    }

    .home-subs-grid {
        grid-template-columns: 1fr;
    }

    .governance-preview {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .governance-roles,
    .values-grid {
        grid-template-columns: 1fr;
    }

    .verify-preview {
        flex-direction: column;
        text-align: center;
        padding: var(--space-6) var(--space-4);
    }

    .verify-preview-icon {
        order: -1;
    }

    .merit-categories {
        grid-template-columns: 1fr;
    }

    .servers-grid {
        grid-template-columns: 1fr;
    }

    .subsidiaries-grid-page {
        grid-template-columns: 1fr;
    }

    .structure-grid {
        grid-template-columns: 1fr 1fr;
    }

    /* Footer */
    .footer-top {
        flex-direction: column;
        gap: var(--space-5);
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-3);
    }

    /* Table responsive */
    .data-table {
        font-size: var(--text-xs);
    }

    .data-table th, .data-table td {
        padding: var(--space-2) var(--space-3);
    }

    /* Podium */
    .podium,
    .ranking-podium {
        flex-direction: column;
        align-items: center;
        gap: var(--space-3);
    }

    .podium-place,
    .podium-item {
        width: 100%;
        max-width: 300px;
        min-height: auto !important;
        border-radius: var(--radius-lg);
        display: flex;
        align-items: center;
        gap: var(--space-4);
        padding: var(--space-4);
    }

    .podium-place.first,
    .podium-item.podium-1 {
        order: -1;
    }

    /* Home sections */
    .authenticity-section {
        padding: var(--space-6);
        margin: var(--space-4) auto;
    }

    .internal-banner {
        padding: var(--space-6) var(--space-4);
    }

    .internal-features-grid {
        grid-template-columns: 1fr 1fr;
    }

    /* Hero */
    .hero {
        padding: var(--space-20) var(--space-4) var(--space-12);
        min-height: 75vh;
    }

    .hero-emblem-wrap {
        width: 96px;
        height: 96px;
    }

    .hero-emblem {
        width: 96px;
        height: 96px;
        font-size: var(--text-3xl);
    }

    .hero-title {
        letter-spacing: 8px;
    }

    /* Verify form */
    .verify-form {
        flex-direction: column;
    }

    /* Modal */
    .modal {
        margin: var(--space-4);
        max-height: calc(100vh - 2rem);
    }

    .modal-body, .modal-header {
        padding: var(--space-4);
    }

    /* Action items */
    .action-item {
        flex-wrap: wrap;
    }

    .action-item .action-points {
        width: 100%;
        text-align: right;
        margin-top: var(--space-2);
    }

    /* Admin nav scroll */
    .admin-nav {
        scrollbar-width: none;
    }
    .admin-nav::-webkit-scrollbar { display: none; }

    /* Toast */
    .toast-container {
        left: var(--space-4);
        right: var(--space-4);
    }

    .toast {
        max-width: 100%;
    }

    /* Filter group stacking */
    .filter-group {
        flex-wrap: wrap;
    }
}

/* ---- Tablet (768px - 1023px) ---- */
@media (min-width: 768px) and (max-width: 1023px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

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

    .podium-place {
        width: 150px;
    }

    .governance-preview {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

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

/* ---- Tablet and Desktop (>= 768px) — Desktop resets ---- */
@media (min-width: 768px) {
    /* Navigation — ensure horizontal layout on desktop */
    .nav-container {
        display: flex !important;
        flex-direction: row !important;
        flex-wrap: nowrap;
        overflow-x: auto;
    }

    .nav-group {
        flex-direction: row;
        width: auto;
    }

    .nav-group-label {
        display: none;
    }

    .nav-separator-line {
        width: 1px;
        height: 24px;
        margin: 0 var(--space-2);
    }

    .nav-link {
        border-left: none;
        border-bottom: 2px solid transparent;
        width: auto;
    }

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

    .nav-login-btn {
        border: 1px solid var(--color-gold);
        border-radius: var(--radius-md);
        margin-left: var(--space-2);
    }

    .nav-user {
        margin-left: auto;
        border-top: none;
        padding-top: 0;
    }

    .mobile-menu-btn {
        display: none !important;
    }

    /* Footer — horizontal on desktop */
    .footer-top {
        flex-direction: row;
        text-align: left;
    }

    .footer-links {
        justify-content: flex-end;
    }
}

/* ---- Desktop (>= 1024px) ---- */
@media (min-width: 1024px) {
    .hero {
        padding: var(--space-32) var(--space-8) var(--space-24);
    }

    .hero-emblem-wrap {
        width: 130px;
        height: 130px;
    }

    .hero-emblem {
        width: 130px;
        height: 130px;
        font-size: var(--text-5xl);
    }

    .hero-title {
        font-size: var(--text-7xl);
        letter-spacing: 16px;
    }

    /* Wider podium on desktop */
    .podium-place {
        width: 200px;
    }

    .podium-place.first {
        min-height: 220px;
    }

    .admin-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ---- Large desktop (>= 1280px) ---- */
@media (min-width: 1280px) {
    .container {
        padding: 0;
    }
}

/* ---- Print ---- */
@media print {
    body {
        background: white;
        color: black;
    }

    body::before,
    .site-header,
    .site-nav,
    .site-footer,
    .toast-container,
    .mobile-menu-btn,
    .btn,
    .admin-nav,
    .hero-bg-effects {
        display: none !important;
    }

    .main-content {
        max-width: 100%;
        padding: 0;
    }

    .card {
        border: 1px solid #ddd;
        break-inside: avoid;
    }

    h1, h2, h3, h4, h5 {
        color: black;
    }
}

/* ---- Accessibility: Reduced Motion ---- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* ---- High contrast mode ---- */
@media (prefers-contrast: high) {
    :root {
        --color-border: rgba(201, 168, 76, 0.4);
        --color-text-secondary: #c8c4be;
        --color-text-muted: #a0a0a0;
    }
}