/* =============================================
   QUANTUM AI — Universal Responsive System
   Optimised for every screen: 320px → 2560px+
   Created by Protkarsh
   ============================================= */

/* ═══════════════════════════════════════════
   FLUID DESIGN TOKENS
   ═══════════════════════════════════════════ */
:root {
    --content-max: 820px;
    --content-padding: 20px;
}

/* ═══════════════════════════════════════════
   ULTRAWIDE DESKTOP (2560px+)
   ═══════════════════════════════════════════ */
@media (min-width: 2560px) {
    :root { --content-max: 1100px; --sidebar-width: 340px; }
    .messages { max-width: var(--content-max); }
    .input-wrapper { max-width: var(--content-max); }
    .welcome-title { font-size: 42px; }
    .welcome-subtitle { font-size: 20px; }
    .welcome-orb { width: 150px; height: 150px; }
    .welcome-orb-core { font-size: 42px; }
    .suggestion-chip { font-size: 15px; padding: 12px 22px; }
    .message-body { font-size: 16px; }
    .message-avatar { width: 38px; height: 38px; font-size: 16px; }
    .input-wrapper textarea { font-size: 16px; }
    .modal { max-width: 560px; }
    .logo-text h1 { font-size: 24px; }
    .logo-icon { width: 46px; height: 46px; font-size: 20px; }
    .sidebar-header { padding: 24px 20px 18px; }
    .new-chat-btn { padding: 14px 18px; font-size: 15px; }
    .history-item { padding: 12px 14px; font-size: 14px; }
}

/* ═══════════════════════════════════════════
   LARGE DESKTOP (1440px – 2559px)
   ═══════════════════════════════════════════ */
@media (min-width: 1440px) and (max-width: 2559px) {
    :root { --content-max: 960px; --sidebar-width: 310px; }
    .messages { max-width: var(--content-max); }
    .input-wrapper { max-width: var(--content-max); }
    .image-preview-container { max-width: var(--content-max); }
    .welcome-title { font-size: 36px; }
    .message-body { font-size: 15px; }
}

/* ═══════════════════════════════════════════
   STANDARD DESKTOP (1024px – 1439px)
   ═══════════════════════════════════════════ */
@media (min-width: 1024px) and (max-width: 1439px) {
    :root { --content-max: 820px; }
}

/* ═══════════════════════════════════════════
   TABLET LANDSCAPE (768px – 1023px)
   ═══════════════════════════════════════════ */
@media (min-width: 768px) and (max-width: 1023px) {
    :root { --sidebar-width: 260px; --content-max: 680px; }

    .messages { max-width: var(--content-max); padding: 20px 16px; }
    .input-wrapper { max-width: var(--content-max); }

    .top-bar { padding: env(safe-area-inset-top) 14px 0 14px; gap: 8px; }
    .top-bar-title { font-size: 13px; }
    .top-bar-model { font-size: 10px; padding: 3px 8px; }

    .persona-btn { padding: 5px 10px; font-size: 12px; }

    .modal { max-width: 460px; }
    .modal-body { padding: 20px; }

    .welcome-title { font-size: 28px; }
    .welcome-subtitle { font-size: 15px; }
    .suggestions { max-width: 500px; }
}

/* ═══════════════════════════════════════════
   TABLET PORTRAIT / SMALL TABLET (600px – 767px)
   ═══════════════════════════════════════════ */
@media (max-width: 767px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100%;
        height: 100dvh;
        z-index: 200;
        transform: translateX(-100%);
        box-shadow: var(--shadow-lg);
        transition: transform var(--transition-slow);
        width: 280px;
        min-width: 280px;
    }

    .sidebar.open {
        transform: translateX(0);
        opacity: 1;
        pointer-events: all;
    }

    .sidebar.collapsed { transform: translateX(-100%); }
    .sidebar-close { display: flex; }
    .sidebar.open ~ .sidebar-overlay { display: block; }

    .top-bar { padding: env(safe-area-inset-top) 12px 0 12px; gap: 6px; }

    .modal-overlay { padding: 12px; align-items: flex-end; }
    .modal {
        max-width: 100%;
        margin: 0;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        max-height: 85vh;
        max-height: 85dvh;
    }
    @keyframes modalIn {
        from { opacity: 0; transform: translateY(40px); }
        to { opacity: 1; transform: translateY(0); }
    }

    .welcome-screen { padding: 24px 16px; min-height: 0; }
    .welcome-title { font-size: 24px; }
    .welcome-subtitle { font-size: 14px; margin-bottom: 28px; }
    .suggestions { flex-direction: column; align-items: center; max-width: 100%; }
    .suggestion-chip { white-space: normal; text-align: left; width: 100%; max-width: 320px; }

    .messages { padding: 16px 14px; }
    .message-content { overflow-x: hidden; max-width: calc(100vw - 80px); }
    .message-body pre { max-width: calc(100vw - 80px); }

    /* Tables scroll horizontally on mobile */
    .message-body table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; white-space: nowrap; }
    .message-body table th, .message-body table td { white-space: nowrap; }

    .input-area {
        padding: 12px 14px 16px;
        padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    }
    .input-wrapper textarea { max-height: 100px; }

    .toast {
        bottom: calc(80px + env(safe-area-inset-bottom, 0px));
        max-width: calc(100vw - 32px);
    }

    .memory-add-row { flex-direction: column; }
    .memory-add-row .setting-input { width: 100%; }
    .memory-add-row .btn-add { width: 100%; }
    .templates-grid { gap: 4px; }
    .template-chip { font-size: 11px; padding: 5px 10px; }
    .font-size-control { justify-content: center; }
    .shortcuts-list { font-size: 12px; }
    .shortcut-row kbd { font-size: 10px; padding: 2px 6px; }
    .response-timer { font-size: 10px; }
    .image-download-btn { opacity: 1; width: 32px; height: 32px; }
}

/* ═══════════════════════════════════════════
   MOBILE PHONE (481px – 600px)
   ═══════════════════════════════════════════ */
@media (max-width: 600px) and (min-width: 481px) {
    .top-bar { height: calc(54px + env(safe-area-inset-top)); min-height: calc(54px + env(safe-area-inset-top)); padding: env(safe-area-inset-top) 10px 0 10px; gap: 6px; }
    .top-bar-title { font-size: 13px; flex: 1; min-width: 0; }
    .top-bar-title span { max-width: 120px; }
    .top-bar-model { font-size: 10px; max-width: 110px; padding: 3px 8px; }

    .persona-btn { padding: 4px 10px; font-size: 11px; }
    .persona-name { font-size: 11px; }

    .messages { padding: 14px 12px; }
    .modal-body { padding: 18px; gap: 16px; }
    .modal-header { padding: 16px 18px; }
}

/* ═══════════════════════════════════════════
   STANDARD MOBILE (376px – 480px)
   ═══════════════════════════════════════════ */
@media (max-width: 480px) {

    /* ── Top Bar — Compact layout ── */
    .top-bar {
        height: calc(50px + env(safe-area-inset-top));
        min-height: calc(50px + env(safe-area-inset-top));
        padding: env(safe-area-inset-top) 8px 0 8px;
        gap: 4px;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .top-bar::-webkit-scrollbar { display: none; }

    #sidebarToggle { flex-shrink: 0; width: 32px; height: 32px; }
    .top-bar-title { font-size: 13px; flex: 1; min-width: 0; }
    .top-bar-title span { max-width: 80px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: inline-block; }

    /* Persona — icon only on mobile */
    .persona-selector { flex-shrink: 0; }
    .persona-btn { padding: 4px 8px; font-size: 11px; gap: 4px; }
    .persona-icon { font-size: 12px; }
    .persona-name { display: none; }
    .persona-dropdown { right: -40px; min-width: 160px; }
    .persona-option { padding: 8px 12px; font-size: 12px; }

    /* Top bar buttons — compact */
    .top-bar .btn-icon { width: 32px; height: 32px; flex-shrink: 0; }
    .top-bar .btn-icon svg { width: 16px; height: 16px; }
    .topbar-share-btn { width: 30px; height: 30px; font-size: 14px; padding: 0; flex-shrink: 0; }
    .imagegen-topbar-btn { width: 32px; height: 32px; }
    .imagegen-topbar-btn svg { width: 14px; height: 14px; }

    .top-bar-model { font-size: 9px; padding: 2px 6px; max-width: 90px; }

    .call-btn { width: 32px; height: 32px; }
    .call-btn svg { width: 14px; height: 14px; }

    /* ── Welcome Screen ── */
    .welcome-orb { width: 90px; height: 90px; margin-bottom: 24px; }
    .welcome-orb-core { font-size: 24px; inset: 16px; }
    .welcome-title { font-size: 20px; }
    .welcome-subtitle { font-size: 13px; margin-bottom: 24px; padding: 0 10px; }
    .suggestion-chip { font-size: 12px; padding: 8px 14px; }

    /* ── Messages ── */
    .messages { padding: 12px 8px; }
    .message { gap: 8px; }
    .message-avatar { width: 28px; height: 28px; font-size: 12px; border-radius: 8px; }
    .message-content { max-width: calc(100vw - 60px); }
    .message-body { font-size: 13.5px; }
    .message-body pre { max-width: calc(100vw - 60px); }
    .message-body pre code { font-size: 11.5px; padding: 12px; }
    .message-role { font-size: 12px; }
    .message-body h1 { font-size: 18px; }
    .message-body h2 { font-size: 16px; }
    .message-body h3 { font-size: 14px; }
    .message-body code { font-size: 12px; padding: 1px 4px; }
    .message-image { max-width: min(250px, 100%); max-height: 200px; }

    /* Message actions — always visible on touch */
    .message-actions { opacity: 1; gap: 3px; flex-wrap: wrap; }
    .msg-action-btn { font-size: 10px; padding: 4px 8px; gap: 3px; }
    .msg-action-btn svg { width: 12px; height: 12px; }

    /* Edit message */
    .edit-textarea { font-size: 14px; padding: 8px 10px; min-height: 50px; }
    .edit-save-btn, .edit-cancel-btn { font-size: 11px; padding: 5px 12px; }

    /* ── Input Area ── */
    .input-area {
        padding: 8px 8px 12px;
        padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
    }
    .input-wrapper { border-radius: var(--radius-md); }
    .input-wrapper textarea { font-size: 16px; padding: 12px 8px; max-height: 80px; }
    .attach-btn { width: 34px; height: 34px; margin: 4px 0 4px 4px; }
    .attach-btn svg { width: 18px; height: 18px; }
    .send-btn, .stop-btn { width: 34px; height: 34px; margin: 4px 4px 4px 0; }
    .send-btn svg, .stop-btn svg { width: 16px; height: 16px; }
    .voice-btn { width: 34px; height: 34px; margin: 4px 0; }
    .voice-btn svg { width: 18px; height: 18px; }
    .input-footer { font-size: 10px; margin-top: 6px; }

    /* ── Image gen / preview ── */
    .image-preview-container { padding: 0 2px; }
    .image-preview img { max-width: 150px; max-height: 120px; }
    .generated-image-container { max-width: 100%; }
    .generated-image-label { font-size: 10px; }
    .image-gen-btn { font-size: 14px; padding: 12px 16px; }
    .image-gen-action-btn { min-width: 80px; font-size: 11px; padding: 8px 10px; }
    .image-gen-output img { max-height: 350px; }

    /* ── Modals ── */
    .modal { border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
    .modal-header { padding: 14px 16px; }
    .modal-header h3 { font-size: 16px; }
    .modal-body { padding: 16px; gap: 16px; }
    .modal-footer { padding: 12px 16px 16px; }

    /* ── Settings ── */
    .setting-input { font-size: 14px; }
    .setting-select { font-size: 14px; }
    .setting-textarea { font-size: 14px; }

    /* ── Export ── */
    .export-option-btn { padding: 12px 14px; gap: 10px; }
    .export-option-btn svg { width: 18px; height: 18px; }
    .export-option-btn strong { font-size: 13px; }
    .export-option-btn span { font-size: 11px; }

    /* ── Code blocks ── */
    .code-header { padding: 6px 10px; font-size: 11px; }
    .copy-code-btn { font-size: 11px; padding: 3px 6px; }

    /* ── Error ── */
    .error-message { font-size: 12px; padding: 10px 12px; }

    /* ── Call overlay ── */
    .call-orb { width: 160px; height: 160px; }
    .call-orb-core { width: 110px; height: 110px; font-size: 36px; }
    .wave-1 { inset: -8px; }
    .wave-2 { inset: -22px; }
    .wave-3 { inset: -38px; }
    .wave-4 { inset: -56px; }
    .call-content { padding: 24px 16px; }
    .call-header { padding-top: 20px; padding-top: calc(20px + env(safe-area-inset-top, 0px)); }
    .call-label { font-size: 16px; }
    .call-timer { font-size: 13px; }
    .call-status { font-size: 14px; margin-top: 16px; }
    .call-transcript { font-size: 14px; max-height: 80px; padding: 0 12px; line-height: 1.5; }
    .call-controls { gap: 20px; padding-bottom: 28px; padding-bottom: calc(28px + env(safe-area-inset-bottom, 0px)); }
    .call-control-btn { width: 56px; height: 56px; }
    .call-control-btn svg { width: 20px; height: 20px; }
    .call-control-btn span { font-size: 9px; bottom: -18px; }
    .call-control-btn.call-end { width: 64px; height: 64px; }
    .call-control-btn.call-end svg { width: 24px; height: 24px; }

    /* ── Toast ── */
    .toast { font-size: 12px; padding: 10px 18px; }

    /* ── Sidebar search ── */
    .sidebar-search input { font-size: 14px; padding: 8px 10px 8px 32px; }
    .sidebar-search svg { left: 24px; }

    /* ── Agent Mode toggle ── */
    .agent-mode-toggle { padding: 6px 10px; font-size: 0.8rem; }
    .agent-mode-toggle .agent-status { font-size: 0.65rem; padding: 2px 6px; }

    /* ── Agent reasoning panel ── */
    .agent-reasoning { padding: 10px; border-radius: 12px; }
    .agent-step { padding: 6px 8px; gap: 8px; }
    .agent-step-icon { font-size: 0.95rem; width: 24px; }
    .agent-step-name { font-size: 0.78rem; }
    .agent-step-status { font-size: 0.65rem; }
    .agent-badge { font-size: 0.7rem; padding: 3px 10px; }
    .agent-result-body { font-size: 0.75rem; }

    /* ── Premium modals ── */
    .gallery-grid { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 8px; }
    .gallery-item-prompt { font-size: 0.65rem; }
    .gallery-lightbox-content { max-width: 95vw; }
    .gallery-lightbox-content img { max-height: 70vh; }

    .clip-item { padding: 8px 10px; }
    .clip-text { font-size: 0.78rem; }
    .clip-meta { font-size: 0.65rem; }

    /* ── Video Engine ── */
    .veo-prompt-input { font-size: 14px !important; }
    .veo-controls { flex-direction: column; gap: 8px; }
    .veo-controls select { width: 100%; }
}

/* ═══════════════════════════════════════════
   SMALL PHONE (321px – 375px)
   ═══════════════════════════════════════════ */
@media (max-width: 375px) {
    .top-bar { gap: 3px; padding: env(safe-area-inset-top) 6px 0 6px; }
    .top-bar-title span { max-width: 60px; }
    .top-bar-model { display: none; }

    .welcome-orb { width: 80px; height: 80px; }
    .welcome-orb-core { font-size: 22px; inset: 14px; }
    .welcome-title { font-size: 19px; }
    .welcome-subtitle { font-size: 12px; padding: 0 6px; }
    .suggestion-chip { font-size: 11.5px; padding: 7px 12px; }

    .messages { padding: 10px 6px; }
    .message { gap: 6px; }
    .message-avatar { width: 26px; height: 26px; font-size: 11px; }
    .message-content { max-width: calc(100vw - 52px); }
    .message-body { font-size: 13px; }
    .message-body pre { max-width: calc(100vw - 52px); }

    .msg-action-btn { font-size: 9px; padding: 3px 6px; }

    .input-area { padding: 6px 6px 10px; padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px)); }
    .attach-btn { width: 32px; height: 32px; margin: 3px 0 3px 3px; }
    .send-btn, .stop-btn { width: 32px; height: 32px; }
    .voice-btn { width: 32px; height: 32px; }
    .input-wrapper textarea { padding: 10px 6px; }
    .input-footer { font-size: 9px; }

    .persona-btn { padding: 3px 6px; }
    .persona-icon { font-size: 11px; }

    .gallery-grid { grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); }
}

/* ═══════════════════════════════════════════
   TINY PHONE (≤320px — iPhone SE / Galaxy Fold)
   ═══════════════════════════════════════════ */
@media (max-width: 320px) {
    .top-bar { height: calc(46px + env(safe-area-inset-top)); min-height: calc(46px + env(safe-area-inset-top)); padding: env(safe-area-inset-top) 4px 0 4px; gap: 2px; }
    .top-bar-title span { max-width: 50px; font-size: 12px; }

    /* Hide non-essential top-bar items */
    .persona-selector { display: none; }
    .top-bar .btn-icon { width: 28px; height: 28px; }
    .call-btn { width: 28px; height: 28px; }

    .welcome-orb { width: 70px; height: 70px; }
    .welcome-orb-core { font-size: 20px; inset: 12px; }
    .welcome-title { font-size: 18px; }
    .welcome-subtitle { font-size: 12px; }
    .suggestion-chip { font-size: 11px; padding: 7px 12px; gap: 6px; }
    .suggestion-chip svg { width: 14px; height: 14px; }

    .message-body { font-size: 12.5px; line-height: 1.6; }
    .message-avatar { width: 24px; height: 24px; font-size: 10px; border-radius: 6px; }
    .message-content { max-width: calc(100vw - 46px); }
    .message-body pre { max-width: calc(100vw - 46px); }
    .message-body pre code { font-size: 10.5px; padding: 8px; }
    .message-body code { font-size: 11px; }

    .input-wrapper textarea { font-size: 15px; padding: 10px 4px; }
    .attach-btn { width: 30px; height: 30px; }
    .send-btn, .stop-btn { width: 30px; height: 30px; }

    .modal-header h3 { font-size: 15px; }
    .modal-body { padding: 12px; gap: 12px; }

    /* Agent mode — ultra compact */
    .agent-mode-toggle { padding: 5px 8px; font-size: 0.75rem; }

    .call-orb { width: 130px; height: 130px; }
    .call-orb-core { width: 90px; height: 90px; font-size: 30px; }
    .wave-1 { inset: -6px; }
    .wave-2 { inset: -18px; }
    .wave-3 { inset: -32px; }
    .wave-4 { inset: -48px; }
    .call-control-btn { width: 50px; height: 50px; }
    .call-control-btn.call-end { width: 58px; height: 58px; }
    .call-controls { gap: 16px; }
}

/* ═══════════════════════════════════════════
   LANDSCAPE MOBILE
   ═══════════════════════════════════════════ */
@media (max-height: 500px) and (orientation: landscape) {
    .welcome-orb { width: 60px; height: 60px; margin-bottom: 16px; }
    .welcome-orb-core { font-size: 18px; inset: 10px; }
    .welcome-title { font-size: 20px; margin-bottom: 4px; }
    .welcome-subtitle { font-size: 13px; margin-bottom: 16px; }
    .welcome-screen { padding: 16px 20px; }
    .suggestions { gap: 6px; }
    .suggestion-chip { padding: 6px 12px; font-size: 11px; }

    .messages { padding: 8px 12px; gap: 4px; }
    .message { padding: 2px 0; }
    .input-area { padding: 6px 12px 8px; }

    .call-orb { width: 100px; height: 100px; }
    .call-orb-core { width: 70px; height: 70px; font-size: 24px; }
    .wave-1 { inset: -5px; }
    .wave-2 { inset: -14px; }
    .wave-3 { inset: -24px; }
    .wave-4 { inset: -36px; }
    .call-header { padding-top: 8px; }
    .call-controls { padding-bottom: 12px; gap: 14px; }
    .call-transcript { max-height: 40px; font-size: 12px; }
    .call-status { margin-top: 6px; font-size: 12px; }
    .call-control-btn { width: 48px; height: 48px; }
    .call-control-btn.call-end { width: 54px; height: 54px; }

    .modal { max-height: 95vh; }
    .modal-body { max-height: 60vh; overflow-y: auto; }
}

/* ═══════════════════════════════════════════
   LANDSCAPE TABLET
   ═══════════════════════════════════════════ */
@media (min-width: 768px) and (max-height: 600px) and (orientation: landscape) {
    .welcome-screen { padding: 20px 24px; }
    .welcome-orb { width: 70px; height: 70px; }
    .welcome-title { font-size: 22px; }
    .welcome-subtitle { margin-bottom: 20px; }
    .messages { padding: 12px 16px; }
}

/* ═══════════════════════════════════════════
   TOUCH DEVICE OVERRIDES
   ═══════════════════════════════════════════ */
@media (hover: none) and (pointer: coarse) {
    .message-actions { opacity: 1; }
    .history-item-delete { opacity: 0.6; }
    .call-control-btn:hover { transform: none; }
    .call-btn:hover { transform: none; }
    .send-btn:not(:disabled):hover { transform: none; }
    .suggestion-chip:hover { transform: none; }
    .btn-icon:hover { background: transparent; }

    /* Larger touch targets */
    .history-item { padding: 12px 14px; min-height: 44px; }
    .btn-icon-text { min-height: 44px; }
    .new-chat-btn { min-height: 48px; }
    .attach-btn { min-width: 34px; min-height: 34px; }
}

/* ═══════════════════════════════════════════
   PRINT STYLES
   ═══════════════════════════════════════════ */
@media print {
    .sidebar, .top-bar, .input-area, .bg-grid, .bg-glow, .bg-glow-2, .bg-glow-3 { display: none !important; }
    .main-content { width: 100% !important; }
    .messages { max-width: 100% !important; padding: 0 !important; }
    .message { break-inside: avoid; }
    body { background: white !important; color: black !important; position: static !important; overflow: auto !important; }
    .modal-overlay { display: none !important; }
}

/* ═══════════════════════════════════════════
   HIGH DPI / RETINA ADJUSTMENTS
   ═══════════════════════════════════════════ */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .message-body pre code { -webkit-font-smoothing: subpixel-antialiased; }
}

/* ═══════════════════════════════════════════
   REDUCED MOTION (Accessibility)
   ═══════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .bg-glow, .bg-glow-2, .bg-glow-3 { animation: none !important; }
    .welcome-orb-ring { animation: none !important; }
    .logo-ring { animation: none !important; }
}

/* ═══════════════════════════════════════════
   STANDALONE COMPONENT RESPONSIVE
   ═══════════════════════════════════════════ */

/* Webcam modal */
.webcam-modal video { width: 100%; border-radius: 8px; background: #000; }
.webcam-actions { display: flex; gap: 8px; margin-top: 12px; }

/* PDF upload indicator */
.doc-indicator {
    display: flex; align-items: center; gap: 6px;
    padding: 8px 12px; background: rgba(59, 130, 246,0.1);
    border: 1px solid rgba(59, 130, 246,0.3); border-radius: 8px;
    font-size: 0.8rem; color: #bd93f9; margin-bottom: 8px;
}
.doc-indicator button { background: none; border: none; color: #ff5555; cursor: pointer; font-size: 1rem; margin-left: auto; }

/* Global search */
.global-search-overlay {
    position: fixed; inset: 0; z-index: 500;
    background: rgba(0,0,0,0.7); display: flex;
    align-items: flex-start; justify-content: center;
    padding-top: 80px;
}
.global-search-box {
    width: 90%; max-width: 500px; background: var(--bg-secondary, #1a1a2e);
    border: 1px solid rgba(37, 99, 235,0.2); border-radius: 12px;
    overflow: hidden; max-height: 70vh;
}
.global-search-input {
    width: 100%; padding: 14px 16px; background: transparent;
    border: none; border-bottom: 1px solid rgba(255,255,255,0.05);
    color: var(--text-primary, #e2e8f0); font-size: 15px; outline: none;
}
.global-search-results { overflow-y: auto; max-height: calc(70vh - 50px); padding: 8px; }
.global-search-result {
    padding: 10px 12px; border-radius: 8px; cursor: pointer;
    margin-bottom: 4px; transition: background 0.2s;
}
.global-search-result:hover { background: rgba(37, 99, 235,0.05); }
.global-search-result .gs-title { font-weight: 600; font-size: 0.85rem; color: var(--accent-primary, #2563EB); }
.global-search-result .gs-preview { font-size: 0.78rem; color: rgba(255,255,255,0.5); margin-top: 4px; }

@media (max-width: 480px) {
    .global-search-overlay { padding-top: 20px; }
    .global-search-box { width: 95%; max-height: 80vh; border-radius: 16px 16px 0 0; }
    .global-search-input { padding: 12px 14px; font-size: 16px; }
}

/* Slash commands */
.slash-dropdown {
    position: absolute; bottom: 100%; left: 0; right: 0;
    background: var(--bg-secondary, #1a1a2e);
    border: 1px solid rgba(37, 99, 235,0.15);
    border-radius: 10px 10px 0 0;
    max-height: 200px; overflow-y: auto;
    display: none; z-index: 50;
}
.slash-dropdown.show { display: block; }
.slash-option {
    padding: 10px 14px; cursor: pointer;
    display: flex; align-items: center; gap: 8px;
    font-size: 0.85rem; transition: background 0.15s;
}
.slash-option:hover { background: rgba(37, 99, 235,0.07); }
.slash-option .slash-cmd { color: var(--accent-primary, #2563EB); font-weight: 600; min-width: 90px; }

@media (max-width: 480px) {
    .slash-option { padding: 12px 14px; font-size: 0.9rem; }
    .slash-option .slash-cmd { min-width: 70px; }
}

/* Pin badge */
.pinned-badge {
    display: inline-flex; align-items: center; gap: 4px;
    background: rgba(241,250,140,0.1); color: #f1fa8c;
    padding: 2px 8px; border-radius: 10px;
    font-size: 0.7rem; font-weight: 600; margin-bottom: 4px;
}

/* Overflow menu */
.overflow-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--bg-secondary, #1a1a2e);
    border: 1px solid rgba(37, 99, 235,0.15);
    border-radius: 10px;
    min-width: 200px;
    z-index: 100;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
    overflow: hidden;
    max-height: 70vh;
    overflow-y: auto;
}
.overflow-menu button {
    display: block;
    width: 100%;
    padding: 11px 16px;
    background: none;
    border: none;
    color: var(--text-primary, #e2e8f0);
    font-size: 0.85rem;
    text-align: left;
    cursor: pointer;
    transition: background 0.15s;
}
.overflow-menu button:hover {
    background: rgba(37, 99, 235,0.07);
}

@media (max-width: 480px) {
    .overflow-menu {
        position: fixed;
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        border-radius: 16px 16px 0 0;
        min-width: 100%;
        max-height: 60vh;
        padding-bottom: env(safe-area-inset-bottom, 0px);
    }
    .overflow-menu button {
        padding: 14px 20px;
        font-size: 0.9rem;
        min-height: 48px;
        display: flex;
        align-items: center;
    }
}

/* ═══════════════════════════════════════════
   FOCUS MODE RESPONSIVE
   ═══════════════════════════════════════════ */
body.focus-mode .sidebar { transform: translateX(-100%); position: absolute; pointer-events: none; opacity: 0; }
body.focus-mode .main-content { width: 100%; }

/* ═══════════════════════════════════════════
   CONTAINER QUERIES (Progressive Enhancement)
   Future-proofing for modern browsers
   ═══════════════════════════════════════════ */
@supports (container-type: inline-size) {
    .main-content { container-type: inline-size; container-name: main; }

    @container main (max-width: 500px) {
        .messages { padding: 10px 8px; }
        .input-wrapper textarea { font-size: 16px; }
    }

    @container main (min-width: 900px) {
        .messages { max-width: 900px; }
        .input-wrapper { max-width: 900px; }
    }
}

/* ═══════════════════════════════════════════
   AUTO CONTEXT BADGE RESPONSIVE
   ═══════════════════════════════════════════ */
@media (max-width: 767px) {
    .auto-context-badge { padding: 4px 6px; }
    .auto-context-text { display: none; }
}

/* ═══════════════════════════════════════════
   AUTH CARD RESPONSIVE (SMALL PHONES)
   ═══════════════════════════════════════════ */
@media (max-width: 400px) {
    .auth-card {
        padding: 30px 20px;
    }
    .auth-toggle-link {
        font-size: 12px;
    }
    .auth-card h2 {
        font-size: 22px;
    }
}