/* ========================================
   SMART YAZILIM - MOBILE RESPONSIVE FRAMEWORK
   Premium mobil deneyim için kapsamlı CSS
   ======================================== */

/* ==========================================
   1. CSS VARIABLES & FOUNDATIONS
   ========================================== */
:root {
    /* Mobile-specific variables */
    --mobile-header-height: 60px;
    --mobile-bottom-nav-height: 70px;
    --safe-area-top: env(safe-area-inset-top, 0px);
    --safe-area-bottom: env(safe-area-inset-bottom, 0px);
    --safe-area-left: env(safe-area-inset-left, 0px);
    --safe-area-right: env(safe-area-inset-right, 0px);
    
    /* Touch targets - minimum 44px as per Apple HIG */
    --touch-target-min: 44px;
    --touch-target-comfortable: 48px;
    
    /* Mobile spacing */
    --mobile-gutter: 16px;
    --mobile-gutter-sm: 12px;
    --mobile-radius: 16px;
    --mobile-radius-lg: 24px;
    
    /* Mobile typography */
    --mobile-font-xs: 11px;
    --mobile-font-sm: 13px;
    --mobile-font-base: 15px;
    --mobile-font-lg: 17px;
    --mobile-font-xl: 20px;
    --mobile-font-2xl: 24px;
    --mobile-font-3xl: 28px;
}

/* ==========================================
   2. GLOBAL MOBILE RESETS
   ========================================== */
@media (max-width: 768px) {
    /* Prevent zoom on input focus */
    input, select, textarea {
        font-size: 16px !important;
    }
    
    /* Smooth scrolling */
    html {
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
    }
    
    /* Prevent text size adjustment */
    body {
        -webkit-text-size-adjust: 100%;
        -ms-text-size-adjust: 100%;
    }
    
    /* Hide scrollbars but keep functionality */
    ::-webkit-scrollbar {
        width: 0;
        height: 0;
    }
    
    /* Better tap highlight */
    * {
        -webkit-tap-highlight-color: rgba(99, 102, 241, 0.1);
    }
    
    /* Disable pull-to-refresh on Chrome */
    body {
        overscroll-behavior-y: contain;
    }
}

/* ==========================================
   3. MOBILE LAYOUT & CONTAINER
   ========================================== */
@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
        padding-top: var(--safe-area-top);
        padding-bottom: calc(var(--mobile-bottom-nav-height) + var(--safe-area-bottom));
    }
    
    .main-content {
        margin-left: 0 !important;
        width: 100% !important;
        min-height: calc(100vh - var(--mobile-header-height));
        padding-bottom: var(--mobile-bottom-nav-height);
    }
    
    .page-content {
        padding: var(--mobile-gutter) !important;
        padding-bottom: calc(var(--mobile-bottom-nav-height) + 20px) !important;
    }
}

/* ==========================================
   4. MOBILE HEADER - Floating Style
   ========================================== */
@media (max-width: 768px) {
    .top-header {
        height: var(--mobile-header-height);
        padding: 0 var(--mobile-gutter) !important;
        position: fixed !important;
        top: var(--safe-area-top);
        left: 0;
        right: 0;
        z-index: 1000;
        background: rgba(15, 23, 42, 0.95) !important;
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    
    .header-left {
        gap: 10px !important;
    }
    
    .sidebar-toggle {
        width: var(--touch-target-min);
        height: var(--touch-target-min);
        display: flex !important;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        border-radius: 12px;
        background: rgba(255, 255, 255, 0.05);
        transition: all 0.2s;
    }
    
    .sidebar-toggle:active {
        transform: scale(0.95);
        background: rgba(255, 255, 255, 0.1);
    }
    
    .model-selector {
        padding: 8px 12px !important;
    }
    
    .model-name {
        font-size: var(--mobile-font-sm) !important;
    }
    
    /* Hide desktop-only elements */
    .header-nav,
    .brand-badge,
    .header-actions {
        display: none !important;
    }
}

/* ==========================================
   5. MOBILE SIDEBAR - Slide Over Panel
   ========================================== */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 85vw;
        max-width: 320px;
        transform: translateX(-100%);
        z-index: 2000;
        padding: calc(var(--safe-area-top) + 20px) 20px 20px;
        background: rgba(15, 23, 42, 0.98) !important;
        backdrop-filter: blur(30px);
        box-shadow: 10px 0 40px rgba(0, 0, 0, 0.5);
        transition: transform 0.35s cubic-bezier(0.32, 0.72, 0, 1);
        will-change: transform;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .sidebar-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(4px);
        opacity: 0;
        visibility: hidden;
        z-index: 1999;
        transition: opacity 0.35s, visibility 0.35s;
    }
    
    .sidebar-overlay.active {
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-close-btn {
        display: flex !important;
        position: absolute;
        top: calc(var(--safe-area-top) + 15px);
        right: 15px;
        width: var(--touch-target-min);
        height: var(--touch-target-min);
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, 0.1);
        border: none;
        border-radius: 12px;
        color: white;
        font-size: 18px;
    }
    
    .nav-menu {
        margin-top: 30px;
    }
    
    .nav-item {
        padding: 14px 16px !important;
        border-radius: var(--mobile-radius) !important;
        min-height: var(--touch-target-min);
        font-size: var(--mobile-font-base) !important;
    }
    
    .nav-item i {
        font-size: 18px;
        width: 24px;
    }
    
    .active-badge {
        font-size: 9px !important;
        padding: 3px 8px !important;
    }
}

/* ==========================================
   6. MOBILE BOTTOM NAVIGATION
   ========================================== */
.mobile-bottom-nav {
    display: none;
}

@media (max-width: 768px) {
    .mobile-bottom-nav {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: var(--mobile-bottom-nav-height);
        padding-bottom: var(--safe-area-bottom);
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        z-index: 1000;
        justify-content: space-around;
        align-items: center;
        padding-left: var(--safe-area-left);
        padding-right: var(--safe-area-right);
    }
    
    .bottom-nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 4px;
        padding: 8px 16px;
        color: #64748b;
        text-decoration: none;
        font-size: 10px;
        font-weight: 500;
        transition: all 0.2s;
        border-radius: 12px;
        min-width: 64px;
    }
    
    .bottom-nav-item i {
        font-size: 20px;
        transition: transform 0.2s;
    }
    
    .bottom-nav-item.active {
        color: #6366f1;
    }
    
    .bottom-nav-item.active i {
        transform: scale(1.1);
    }
    
    .bottom-nav-item:active {
        transform: scale(0.95);
        background: rgba(99, 102, 241, 0.1);
    }
    
    /* Center action button */
    .bottom-nav-action {
        width: 56px;
        height: 56px;
        background: linear-gradient(135deg, #6366f1, #8b5cf6);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        font-size: 24px;
        box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
        margin-top: -20px;
        transition: transform 0.2s, box-shadow 0.2s;
    }
    
    .bottom-nav-action:active {
        transform: scale(0.95);
        box-shadow: 0 2px 10px rgba(99, 102, 241, 0.3);
    }
}

/* ==========================================
   7. MOBILE PAGE HEADER
   ========================================== */
@media (max-width: 768px) {
    .page-header {
        margin-bottom: 16px !important;
        padding-top: calc(var(--mobile-header-height) + 10px);
    }
    
    .breadcrumb {
        font-size: var(--mobile-font-xs) !important;
        margin-bottom: 8px !important;
    }
    
    .page-title-row {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 12px !important;
    }
    
    .page-title {
        font-size: var(--mobile-font-2xl) !important;
        line-height: 1.2 !important;
    }
    
    .page-desc {
        font-size: var(--mobile-font-sm) !important;
        line-height: 1.5 !important;
    }
    
    .badge {
        font-size: var(--mobile-font-xs) !important;
        padding: 6px 12px !important;
    }
}

/* ==========================================
   8. MOBILE CARDS & CONTAINERS
   ========================================== */
@media (max-width: 768px) {
    .image-card,
    .voice-card,
    .tool-card,
    .settings-card {
        padding: var(--mobile-gutter) !important;
        border-radius: var(--mobile-radius) !important;
        margin-bottom: var(--mobile-gutter);
    }
    
    .image-card h2,
    .voice-card h3 {
        font-size: var(--mobile-font-lg) !important;
        padding-bottom: 12px !important;
        margin-bottom: 16px !important;
    }
    
    /* Full-width cards on mobile */
    .image-grid,
    .voice-container {
        grid-template-columns: 1fr !important;
        gap: var(--mobile-gutter) !important;
    }
}

/* ==========================================
   9. MOBILE FORMS & INPUTS
   ========================================== */
@media (max-width: 768px) {
    .form-group {
        margin-bottom: 16px !important;
    }
    
    .form-group label {
        font-size: var(--mobile-font-sm) !important;
        margin-bottom: 8px !important;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea,
    .chat-textarea,
    .text-area {
        font-size: 16px !important; /* Prevent zoom */
        padding: 14px 16px !important;
        border-radius: 12px !important;
        min-height: var(--touch-target-comfortable);
    }
    
    .form-group textarea,
    .text-area {
        min-height: 120px !important;
    }
    
    /* Better select styling */
    .form-group select {
        appearance: none;
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: right 16px center;
        padding-right: 40px !important;
    }
}

/* ==========================================
   10. MOBILE BUTTONS
   ========================================== */
@media (max-width: 768px) {
    .btn-generate,
    .generate-btn,
    .send-btn,
    .action-btn {
        min-height: var(--touch-target-comfortable) !important;
        font-size: var(--mobile-font-base) !important;
        border-radius: 14px !important;
    }
    
    .btn-generate,
    .generate-btn {
        padding: 16px 24px !important;
    }
    
    /* Floating action buttons */
    .action-btn {
        width: var(--touch-target-comfortable) !important;
        height: var(--touch-target-comfortable) !important;
    }
    
    /* Active states for touch */
    .btn-generate:active,
    .generate-btn:active {
        transform: scale(0.98) !important;
    }
}

/* ==========================================
   11. MOBILE GRIDS & SELECTIONS
   ========================================== */
@media (max-width: 768px) {
    /* Mode selection grids */
    .mode-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 10px !important;
    }
    
    .mode-card {
        padding: 14px 10px !important;
        min-height: 70px;
    }
    
    .mode-card i {
        font-size: 22px !important;
        margin-bottom: 6px !important;
    }
    
    .mode-card span {
        font-size: var(--mobile-font-xs) !important;
    }
    
    /* Aspect ratio selection */
    .aspect-grid {
        grid-template-columns: repeat(4, 1fr) !important;
        gap: 8px !important;
    }
    
    .aspect-card {
        padding: 10px 6px !important;
        font-size: var(--mobile-font-xs) !important;
    }
    
    /* Voice selection */
    .voice-grid {
        grid-template-columns: repeat(4, 1fr) !important;
        gap: 8px !important;
    }
    
    .voice-item {
        padding: 12px 8px !important;
    }
    
    .voice-item i {
        font-size: 20px !important;
        margin-bottom: 6px !important;
    }
    
    .voice-item span {
        font-size: var(--mobile-font-xs) !important;
    }
    
    .voice-item small {
        font-size: 9px !important;
    }
    
    /* Style selection */
    .style-grid {
        grid-template-columns: 1fr !important;
        gap: 10px !important;
    }
    
    .style-item {
        padding: 14px !important;
    }
}

/* ==========================================
   12. MOBILE RESULTS DISPLAY
   ========================================== */
@media (max-width: 768px) {
    .result-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 12px !important;
    }
    
    .result-card {
        border-radius: 12px !important;
    }
    
    /* Always show actions on mobile */
    .result-actions {
        opacity: 1 !important;
        padding: 30px 12px 12px !important;
    }
    
    .result-actions .action-btn {
        width: 40px !important;
        height: 40px !important;
    }
    
    /* Result info badge */
    .result-info {
        position: absolute;
        top: 8px;
        left: 8px;
    }
    
    .aspect-badge {
        font-size: 9px !important;
        padding: 3px 6px !important;
    }
}

/* ==========================================
   13. MOBILE CHAT INTERFACE
   ========================================== */
@media (max-width: 768px) {
    .chat-container {
        padding-top: calc(var(--mobile-header-height) + var(--safe-area-top)) !important;
        height: calc(100vh - var(--mobile-bottom-nav-height)) !important;
    }
    
    .messages-area {
        padding: 16px !important;
        gap: 16px !important;
    }
    
    .message {
        gap: 10px !important;
    }
    
    .message-avatar {
        width: 32px !important;
        height: 32px !important;
        font-size: 14px !important;
    }
    
    .message-content {
        font-size: var(--mobile-font-base) !important;
        max-width: 85% !important;
    }
    
    .user-message .message-content {
        padding: 12px 16px !important;
        border-radius: 18px 18px 4px 18px !important;
    }
    
    /* Welcome screen */
    .welcome-screen {
        padding: 20px !important;
    }
    
    .welcome-text {
        font-size: var(--mobile-font-3xl) !important;
    }
    
    .welcome-subtext {
        font-size: var(--mobile-font-base) !important;
        margin-bottom: 24px !important;
    }
    
    .suggestion-chips {
        gap: 8px !important;
    }
    
    .chip {
        padding: 10px 14px !important;
        font-size: var(--mobile-font-sm) !important;
        flex: 1 1 calc(50% - 8px);
        min-width: 140px;
        justify-content: center;
    }
    
    .chip span {
        display: none;
    }
    
    .chip i {
        margin: 0;
    }
    
    .chip::after {
        content: attr(data-short);
        margin-left: 8px;
    }
    
    /* Input area */
    .input-container {
        padding: 12px var(--mobile-gutter) !important;
        padding-bottom: calc(12px + var(--safe-area-bottom)) !important;
        position: fixed;
        bottom: var(--mobile-bottom-nav-height);
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.95) !important;
        backdrop-filter: blur(20px);
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    /* Grounding toggle compact */
    .grounding-toggle {
        padding: 8px 12px !important;
        margin-bottom: 8px !important;
        border-radius: 10px !important;
    }
    
    .grounding-toggle span {
        font-size: var(--mobile-font-xs) !important;
    }
    
    .input-box {
        border-radius: 20px !important;
        padding: 8px 12px !important;
    }
    
    .chat-textarea {
        padding: 10px 0 !important;
        font-size: var(--mobile-font-base) !important;
    }
    
    .send-btn {
        width: 38px !important;
        height: 38px !important;
    }
    
    .disclaimer {
        display: none;
    }
}

/* ==========================================
   14. MOBILE HISTORY DRAWER
   ========================================== */
@media (max-width: 768px) {
    .history-drawer {
        width: 100% !important;
        right: -100% !important;
        border-radius: var(--mobile-radius-lg) var(--mobile-radius-lg) 0 0;
        max-height: 80vh;
        top: auto !important;
        bottom: 0;
    }
    
    .history-drawer.active {
        right: 0 !important;
    }
    
    .drawer-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.6);
        opacity: 0;
        visibility: hidden;
        z-index: 199;
        transition: opacity 0.3s;
    }
    
    .drawer-overlay.active {
        opacity: 1;
        visibility: visible;
    }
    
    .history-header {
        padding: 20px !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    /* Drag handle */
    .history-header::before {
        content: '';
        position: absolute;
        top: 8px;
        left: 50%;
        transform: translateX(-50%);
        width: 40px;
        height: 4px;
        background: rgba(255, 255, 255, 0.2);
        border-radius: 2px;
    }
    
    .history-item {
        padding: 14px !important;
        min-height: var(--touch-target-min);
    }
    
    .new-chat-btn-drawer {
        margin: 16px !important;
        padding: 14px !important;
    }
}

/* ==========================================
   15. MOBILE AUDIO PLAYER
   ========================================== */
@media (max-width: 768px) {
    .result-area {
        padding: var(--mobile-gutter) !important;
        min-height: 180px !important;
    }
    
    .audio-player audio {
        width: 100% !important;
        height: 50px !important;
    }
    
    .audio-actions {
        flex-direction: column !important;
        gap: 10px !important;
    }
    
    .audio-actions button {
        width: 100% !important;
        justify-content: center !important;
    }
}

/* ==========================================
   16. MOBILE LOADING STATES
   ========================================== */
@media (max-width: 768px) {
    .loading-container {
        padding: 40px 20px !important;
    }
    
    .loading-spinner {
        width: 36px !important;
        height: 36px !important;
    }
    
    /* Skeleton loading */
    .skeleton {
        background: linear-gradient(90deg, 
            rgba(255,255,255,0.05) 25%, 
            rgba(255,255,255,0.1) 50%, 
            rgba(255,255,255,0.05) 75%
        );
        background-size: 200% 100%;
        animation: skeleton-loading 1.5s infinite;
        border-radius: 8px;
    }
    
    @keyframes skeleton-loading {
        0% { background-position: 200% 0; }
        100% { background-position: -200% 0; }
    }
}

/* ==========================================
   17. MOBILE MODALS & SHEETS
   ========================================== */
@media (max-width: 768px) {
    .modal,
    .bottom-sheet {
        position: fixed;
        inset: 0;
        z-index: 3000;
    }
    
    .modal-content,
    .sheet-content {
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.98);
        border-radius: var(--mobile-radius-lg) var(--mobile-radius-lg) 0 0;
        padding: 20px;
        padding-bottom: calc(20px + var(--safe-area-bottom));
        max-height: 90vh;
        overflow-y: auto;
        transform: translateY(100%);
        transition: transform 0.35s cubic-bezier(0.32, 0.72, 0, 1);
    }
    
    .modal.active .modal-content,
    .bottom-sheet.active .sheet-content {
        transform: translateY(0);
    }
    
    /* Sheet handle */
    .sheet-handle {
        width: 40px;
        height: 4px;
        background: rgba(255, 255, 255, 0.2);
        border-radius: 2px;
        margin: 0 auto 20px;
    }
}

/* ==========================================
   18. MOBILE UTILITIES
   ========================================== */
@media (max-width: 768px) {
    /* Hide on mobile */
    .hide-mobile {
        display: none !important;
    }
    
    /* Show only on mobile */
    .show-mobile {
        display: block !important;
    }
    
    /* Full width mobile */
    .full-mobile {
        width: 100% !important;
    }
    
    /* Text alignment */
    .text-center-mobile {
        text-align: center !important;
    }
    
    /* Spacing utilities */
    .p-mobile { padding: var(--mobile-gutter) !important; }
    .px-mobile { padding-left: var(--mobile-gutter) !important; padding-right: var(--mobile-gutter) !important; }
    .py-mobile { padding-top: var(--mobile-gutter) !important; padding-bottom: var(--mobile-gutter) !important; }
    .m-mobile { margin: var(--mobile-gutter) !important; }
    .mb-mobile { margin-bottom: var(--mobile-gutter) !important; }
    
    /* Flex utilities */
    .flex-col-mobile {
        flex-direction: column !important;
    }
    
    .gap-sm-mobile {
        gap: 8px !important;
    }
}

/* ==========================================
   19. MOBILE ANIMATIONS & TRANSITIONS
   ========================================== */
@media (max-width: 768px) {
    /* Reduce motion for battery & accessibility */
    @media (prefers-reduced-motion: reduce) {
        *,
        *::before,
        *::after {
            animation-duration: 0.01ms !important;
            animation-iteration-count: 1 !important;
            transition-duration: 0.01ms !important;
        }
    }
    
    /* Touch feedback animations */
    .touch-ripple {
        position: relative;
        overflow: hidden;
    }
    
    .touch-ripple::after {
        content: '';
        position: absolute;
        inset: 0;
        background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
        opacity: 0;
        transition: opacity 0.3s;
    }
    
    .touch-ripple:active::after {
        opacity: 1;
    }
}

/* ==========================================
   20. LANDSCAPE MODE ADJUSTMENTS
   ========================================== */
@media (max-width: 768px) and (orientation: landscape) {
    .mobile-bottom-nav {
        height: 56px;
    }
    
    .bottom-nav-item {
        flex-direction: row;
        gap: 8px;
    }
    
    .bottom-nav-item span {
        display: inline;
    }
    
    .chat-container {
        height: calc(100vh - 56px) !important;
    }
    
    .page-content {
        padding-bottom: 70px !important;
    }
}

/* ==========================================
   21. TABLET SPECIFIC (768px - 1024px)
   ========================================== */
@media (min-width: 769px) and (max-width: 1024px) {
    .sidebar {
        width: 240px;
    }
    
    .main-content {
        margin-left: 240px;
        width: calc(100% - 240px);
    }
    
    .image-grid {
        grid-template-columns: 1fr 1.5fr;
    }
    
    .voice-container {
        grid-template-columns: 1fr 1fr;
    }
    
    .result-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .messages-area {
        padding-left: 10%;
        padding-right: 10%;
    }
}

/* ==========================================
   22. DARK MODE ENHANCEMENTS
   ========================================== */
@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
    }
}

/* ==========================================
   23. HIGH CONTRAST MODE
   ========================================== */
@media (prefers-contrast: high) {
    .nav-item.active,
    .mode-card.active,
    .voice-item.active {
        border-width: 2px;
    }
    
    .btn-generate,
    .generate-btn {
        border: 2px solid white;
    }
}

/* ==========================================
   24. PRINT STYLES (Hide UI elements)
   ========================================== */
@media print {
    .sidebar,
    .mobile-bottom-nav,
    .top-header,
    .input-container {
        display: none !important;
    }
    
    .main-content {
        margin: 0 !important;
        width: 100% !important;
    }
}