/* ═══════════════════════════════════════════════════════════════════════════════
   A.R.C.H.I.E. Mobile / Responsive Layout
   Breakpoints: 374px (Fold folded) | 480px (small phones) | 768px (tablets/Fold unfolded)
   ═══════════════════════════════════════════════════════════════════════════════ */

/* ─────────────────────────────────────────────────────────────────────────────
   1. TOUCH TARGETS
   ───────────────────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    button,
    .btn,
    .tab-btn,
    .chat-mode-btn,
    .nav-module-btn,
    .nav-icon-btn {
        min-height: 44px;
        min-width: 44px;
    }
}

@media (hover: none) and (pointer: coarse) {
    button,
    .btn,
    .tab-btn,
    .chat-mode-btn {
        min-height: 48px;
        min-width: 48px;
    }
}

/* ─────────────────────────────────────────────────────────────────────────────
   2. TAB NAVIGATION — Horizontal scroll instead of wrapping
   ───────────────────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .tab-nav {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .tab-nav::-webkit-scrollbar {
        display: none;
    }
    .tab-btn {
        flex-shrink: 0;
        white-space: nowrap;
    }

    .chat-mode-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        gap: 0.5rem;
        padding-bottom: 0.25rem;
    }
    .chat-mode-tabs::-webkit-scrollbar {
        display: none;
    }
    .chat-mode-btn {
        flex-shrink: 0;
        white-space: nowrap;
        font-size: 0.75rem;
        padding: 0.5rem 0.75rem;
    }
    /* Push Claude Terminal button to new row on mobile */
    .chat-mode-tabs > div[style*="margin-left: auto"] {
        margin-left: 0 !important;
        width: 100%;
        justify-content: flex-start;
        margin-top: 0.25rem;
    }
}

/* ─────────────────────────────────────────────────────────────────────────────
   3. NAVIGATION DRAWER — Slide from right
   ───────────────────────────────────────────────────────────────────────────── */

/* Hamburger toggle button (hidden on desktop) */
.mobile-nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: 1px solid rgba(255, 170, 0, 0.3);
    border-radius: 8px;
    color: #FFAA00;
    cursor: pointer;
    font-size: 1.4rem;
    line-height: 1;
    transition: all 0.2s ease;
    flex-shrink: 0;
}
.mobile-nav-toggle:hover {
    background: rgba(255, 170, 0, 0.1);
    border-color: rgba(255, 170, 0, 0.5);
}
body.light-mode .mobile-nav-toggle {
    color: #cc6600;
    border-color: rgba(204, 102, 0, 0.3);
}

/* Overlay backdrop */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 10000;
    backdrop-filter: blur(2px);
}
.mobile-nav-overlay.active {
    display: block;
}

@media (max-width: 768px) {
    .mobile-nav-toggle {
        display: flex;
    }

    .admin-ops-nav {
        flex-wrap: nowrap;
        gap: 8px;
        padding: 8px 12px;
        /* Remove backdrop-filter so fixed-position children are relative to viewport.
           !important needed to override inline <style> in admin_ops_nav.html */
        backdrop-filter: none !important;
    }

    .admin-ops-nav .nav-center {
        order: 0;
        width: auto;
        margin-bottom: 0;
        flex: 1;
    }

    .admin-ops-nav .nav-left,
    .admin-ops-nav .nav-center,
    .admin-ops-nav .nav-right {
        flex: none;
    }

    .admin-ops-nav .nav-left {
        flex: 0 0 auto;
    }
    .admin-ops-nav .nav-center {
        flex: 1 1 0;
        min-width: 0;
    }

    .nav-category-label {
        font-size: 0.65rem;
        letter-spacing: 0.1em;
    }

    /* Nav right becomes a fixed drawer */
    .admin-ops-nav .nav-right {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 280px;
        max-width: 80vw;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        padding: 1.5rem 1rem;
        background: linear-gradient(180deg, rgba(0, 0, 0, 0.98) 0%, rgba(13, 17, 23, 0.98) 100%);
        border-left: 1px solid rgba(255, 170, 0, 0.3);
        transform: translateX(100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 10001;
        overflow-y: auto;
        justify-content: flex-start;
    }
    body.light-mode .admin-ops-nav .nav-right {
        background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 249, 250, 0.98) 100%);
        border-left: 1px solid rgba(204, 102, 0, 0.3);
    }
    .admin-ops-nav .nav-right.open {
        transform: translateX(0);
    }

    /* Stack module buttons vertically in drawer */
    .admin-ops-nav .nav-right .nav-module-btn {
        width: 100%;
        justify-content: flex-start;
        padding: 0.75rem 1rem;
        font-size: 0.75rem;
    }
    .admin-ops-nav .nav-right .nav-module-btn span {
        display: inline;
    }
    .admin-ops-nav .nav-right .nav-module-btn i {
        width: 18px;
        height: 18px;
    }

    /* Theme controls row in drawer */
    .admin-ops-nav .nav-right .theme-controls {
        flex-direction: row;
        justify-content: center;
        gap: 0.5rem;
        padding-bottom: 0.75rem;
        border-bottom: 1px solid rgba(255, 170, 0, 0.15);
        margin-bottom: 0.5rem;
    }

    .admin-ops-nav .nav-right .nav-divider {
        width: 100%;
        height: 1px;
        margin: 0.25rem 0;
    }
}

/* ─────────────────────────────────────────────────────────────────────────────
   4. CHAT SIDEBAR — Off-canvas drawer from left
   ───────────────────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .chat-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 280px;
        max-width: 80vw;
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 10001;
        opacity: 1;
        border-right: 1px solid var(--archie-border-default, #30363d);
    }
    .chat-sidebar.collapsed {
        width: 280px;
        max-width: 80vw;
        opacity: 1;
        border-right: 1px solid var(--archie-border-default, #30363d);
    }
    .chat-sidebar.mobile-open {
        transform: translateX(0);
    }

    /* Repurpose expand button as fixed FAB */
    .sidebar-expand-btn {
        position: fixed !important;
        top: 80px;
        left: 12px;
        transform: none !important;
        z-index: 9999;
        display: flex !important;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: var(--archie-bg-secondary, #0d1117);
        border: 1px solid var(--module-accent, #8b5cf6);
        color: var(--module-accent, #8b5cf6);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
        font-size: 1rem;
        cursor: pointer;
    }
}

/* Chat sidebar overlay */
.mobile-chat-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 10000;
    backdrop-filter: blur(2px);
}
.mobile-chat-sidebar-overlay.active {
    display: block;
}

/* ─────────────────────────────────────────────────────────────────────────────
   5. THINKING PANEL — Bottom sheet
   ───────────────────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .solo-orchestrated-container .thinking-panel {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        height: 50vh;
        max-height: 400px;
        transform: translateY(100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        border-radius: 16px 16px 0 0;
        border-left: none;
        border: 1px solid var(--archie-border-default, #30363d);
        border-bottom: none;
        z-index: 10000;
        animation: none;
    }
    .solo-orchestrated-container .thinking-panel.mobile-open {
        transform: translateY(0);
    }
}

/* Thinking panel FAB */
.thinking-toggle-fab {
    display: none;
    position: fixed;
    bottom: 12px;
    right: 12px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--archie-bg-secondary, #0d1117);
    border: 2px solid var(--archie-cyan, #00ffff);
    color: var(--archie-cyan, #00ffff);
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 9999;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 12px rgba(0, 255, 255, 0.3);
    transition: all 0.2s ease;
}
.thinking-toggle-fab:hover {
    background: rgba(0, 255, 255, 0.15);
    box-shadow: 0 4px 16px rgba(0, 255, 255, 0.4);
}
.thinking-toggle-fab.has-steps {
    animation: pulse-fab 2s infinite;
}
@keyframes pulse-fab {
    0%, 100% { box-shadow: 0 2px 12px rgba(0, 255, 255, 0.3); }
    50% { box-shadow: 0 2px 20px rgba(0, 255, 255, 0.6); }
}

@media (max-width: 768px) {
    .thinking-toggle-fab {
        display: flex;
    }
    /* Hide the inline thinking toggle button on mobile */
    .thinking-toggle-btn {
        display: none !important;
    }
}

/* Thinking panel overlay */
.mobile-thinking-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 9999;
}
.mobile-thinking-overlay.active {
    display: block;
}

/* ─────────────────────────────────────────────────────────────────────────────
   6. SOLO CHAT LAYOUT
   ───────────────────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .solo-orchestrated-container {
        flex-direction: column;
        height: calc(100vh - 140px);
    }
    .solo-orchestrated-container .solo-chat-main {
        width: 100%;
        flex: 1;
        min-width: 0;
    }

    .chat-input-wrapper {
        padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
    }
    .chat-input-area {
        gap: 0.4rem;
        padding: 0.5rem;
    }
    .chat-input {
        font-size: 16px; /* Prevent iOS zoom on focus */
    }
    .chat-send-btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }
}

/* ─────────────────────────────────────────────────────────────────────────────
   7. COLLABORATION LAYOUT
   ───────────────────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .collab-container {
        flex-direction: column !important;
    }
    .collab-history-sidebar {
        width: 100% !important;
        max-height: 180px;
        border-right: none;
        border-bottom: 1px solid var(--archie-border-default, #30363d);
    }
    .collab-history-sidebar.collapsed {
        max-height: 0;
        overflow: hidden;
    }

    .template-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.5rem;
    }

    .work-products-panel {
        width: 100% !important;
        max-height: 200px;
        border-left: none;
        border-top: 2px solid var(--archie-gold, #f5a623);
    }
}

@media (max-width: 374px) {
    .template-grid {
        grid-template-columns: 1fr !important;
    }
}

/* ─────────────────────────────────────────────────────────────────────────────
   8. DASHBOARD GRIDS
   ───────────────────────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    .tool-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 374px) {
    .stats-grid {
        grid-template-columns: 1fr !important;
    }
    .tool-grid {
        grid-template-columns: 1fr;
    }
}

/* ─────────────────────────────────────────────────────────────────────────────
   9. GALAXY FOLD SPECIFIC (374px)
   ───────────────────────────────────────────────────────────────────────────── */
@media (max-width: 374px) {
    /* Reduce padding */
    .panel,
    .stat-card,
    .tool-card,
    .card {
        padding: 0.75rem;
    }

    /* Button groups stack */
    .btn-group,
    .collab-settings,
    .chat-input-area {
        flex-direction: column;
        width: 100%;
    }
    .btn-group > *,
    .collab-settings > * {
        width: 100%;
    }

    /* Badge font size */
    .badge,
    .status-badge,
    .wp-type,
    .tab-btn-count {
        font-size: 0.6rem;
    }

    /* Compact nav */
    .admin-ops-nav {
        padding: 6px 8px;
    }
    .nav-category-label {
        font-size: 0.6rem;
        letter-spacing: 0.05em;
    }
    .nav-back-btn {
        padding: 6px 10px;
        font-size: 0.65rem;
    }

    /* Compact chat */
    .chat-message {
        padding: 0.5rem;
    }
    .chat-input-area {
        padding: 0.4rem;
    }
}

/* ─────────────────────────────────────────────────────────────────────────────
   10. UTILITIES
   ───────────────────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .desktop-only {
        display: none !important;
    }
}

@media (min-width: 769px) {
    .mobile-only {
        display: none !important;
    }
}

/* Safe area padding */
.safe-area-bottom {
    padding-bottom: env(safe-area-inset-bottom, 0px);
}
.safe-area-top {
    padding-top: env(safe-area-inset-top, 0px);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.2s !important;
    }
}

/* Body scroll lock when drawer/overlay is open */
body.mobile-nav-open,
body.mobile-sidebar-open,
body.mobile-thinking-open {
    overflow: hidden;
}

/* ─────────────────────────────────────────────────────────────────────────────
   SIDE-BY-SIDE MODE — Stack vertically on mobile
   ───────────────────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .side-by-side-container {
        flex-direction: column !important;
    }
    .claude-terminal-wrapper {
        height: 40vh;
        min-height: 200px;
    }
}