/**
 * responsive.css - 반응형 스타일시트
 * 중고차매매 모바일앱 스타일
 * Mobile-first 접근법
 */

/* ========================================
   Extra Small Devices (< 480px)
   ======================================== */
@media (max-width: 479px) {
    :root {
        /* 시니어 친화적 큰 글자 유지 (최소 14px) */
        --font-size-xs: 14px;
        --font-size-sm: 15px;
        --font-size-base: 16px;
        --font-size-lg: 18px;
        --font-size-xl: 22px;
        --font-size-2xl: 28px;
        --font-size-3xl: 36px;

        --space-lg: 16px;
        --space-xl: 24px;
        --space-2xl: 32px;
    }

    /* Fixed Call Header - Mobile */
    .fixed-call-header {
        top: var(--space-sm);
        right: var(--space-sm);
    }

    .fixed-call-header .call-btn-red {
        padding: var(--space-sm) var(--space-md);
        font-size: var(--font-size-base);
    }

    .fixed-call-header .call-number {
        display: none;
    }

    /* Consultation Form - Mobile */
    .consultation-form-section {
        padding: var(--space-lg);
    }

    .form-title {
        font-size: var(--font-size-xl);
    }

    .form-row {
        flex-direction: column;
    }

    .form-row.two-cols {
        flex-direction: column;
    }

    .btn-submit-large {
        padding: var(--space-lg);
        font-size: var(--font-size-lg);
    }

    /* Vehicle Tabs - Mobile */
    .vehicle-tabs {
        gap: var(--space-sm);
        padding-bottom: var(--space-md);
    }

    .vehicle-tab {
        padding: var(--space-sm) var(--space-md);
        font-size: var(--font-size-base);
    }

    /* Vehicles Grid - Mobile */
    .vehicles-grid {
        grid-template-columns: 1fr;
    }

    /* Region Map Popup - Mobile */
    .region-map-popup {
        width: 95%;
        max-height: 90vh;
    }

    .kakao-map-container {
        height: 250px;
    }

    .header-top {
        padding: var(--space-sm) var(--space-md);
    }

    .logo-icon {
        font-size: 24px;
    }

    .logo-text {
        font-size: var(--font-size-lg);
    }

    .call-btn .call-text {
        display: none;
    }

    .call-btn {
        padding: var(--space-sm);
        border-radius: var(--radius-full);
    }

    .call-icon {
        font-size: 20px;
    }

    .region-map-container {
        padding: var(--space-md);
    }

    .map-title {
        font-size: var(--font-size-lg);
    }

    .korea-map {
        max-width: 280px;
    }

    .nav-icon {
        font-size: 18px;
    }

    .nav-text {
        font-size: 10px;
    }

    .app-main {
        padding: var(--space-md);
    }

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

    .floating-call-btn {
        bottom: var(--space-lg);
        right: var(--space-md);
    }

    .float-text {
        display: none;
    }

    .float-btn {
        padding: var(--space-md);
        border-radius: var(--radius-full);
    }

    .float-icon {
        font-size: 24px;
    }

    .footer-info {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .footer-links {
        flex-direction: column;
        text-align: center;
    }

    .footer-links .divider {
        display: none;
    }

    /* Hero Slider */
    .hero-slider {
        height: 200px;
    }

    .slide-content h2 {
        font-size: var(--font-size-xl);
    }

    .slide-content p {
        font-size: var(--font-size-sm);
    }

    /* Vehicle Cards */
    .vehicle-price {
        font-size: var(--font-size-lg);
    }

    /* Section Styles */
    .section-title {
        font-size: var(--font-size-lg);
    }

    /* Form Styles */
    .form-row {
        flex-direction: column;
    }

    .form-group {
        margin-bottom: var(--space-md);
    }

    /* Stats */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-number {
        font-size: var(--font-size-2xl);
    }

    /* Team Grid */
    .team-grid {
        grid-template-columns: 1fr;
    }

    /* FAQ */
    .faq-question {
        font-size: var(--font-size-base);
        padding: var(--space-md);
    }

    .faq-answer {
        padding: var(--space-md);
    }
}

/* ========================================
   Small Devices (480px - 767px)
   ======================================== */
@media (min-width: 480px) and (max-width: 767px) {
    .header-top {
        padding: var(--space-md);
    }

    .korea-map {
        max-width: 320px;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-slider {
        height: 250px;
    }

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

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

    .footer-info {
        flex-direction: column;
    }
}

/* ========================================
   Medium Devices (768px - 1023px)
   ======================================== */
@media (min-width: 768px) and (max-width: 1023px) {
    .header-top {
        padding: var(--space-md) var(--space-xl);
    }

    .region-map-container {
        display: flex;
        align-items: center;
        gap: var(--space-xl);
        padding: var(--space-xl);
    }

    .map-header {
        flex: 1;
        text-align: left;
        margin-bottom: 0;
    }

    .korea-map {
        max-width: 300px;
        flex-shrink: 0;
    }

    .selected-region-info {
        flex: 1;
        margin-top: 0;
    }

    .main-nav {
        top: 80px;
    }

    .nav-item {
        position: relative;
    }

    .nav-item a,
    .nav-more-btn {
        flex-direction: row;
        gap: var(--space-sm);
        padding: var(--space-md);
    }

    .nav-icon {
        font-size: 20px;
        margin-bottom: 0;
    }

    .nav-text {
        font-size: var(--font-size-sm);
    }

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

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-slider {
        height: 350px;
    }

    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }

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

    .footer-info {
        flex-direction: row;
        justify-content: space-between;
    }
}

/* ========================================
   Large Devices (1024px - 1279px)
   ======================================== */
@media (min-width: 1024px) and (max-width: 1279px) {
    .region-map-container {
        display: flex;
        align-items: center;
        gap: var(--space-2xl);
        padding: var(--space-xl) var(--space-2xl);
        max-width: 1000px;
        margin: 0 auto;
    }

    .map-header {
        flex: 1;
        text-align: left;
        margin-bottom: 0;
    }

    .korea-map {
        max-width: 280px;
    }

    .selected-region-info {
        flex: 1;
        margin-top: 0;
    }

    .nav-list {
        max-width: 600px;
        margin: 0 auto;
    }

    .nav-item a,
    .nav-more-btn {
        flex-direction: row;
        gap: var(--space-sm);
    }

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

    .grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }

    .hero-slider {
        height: 400px;
    }

    .team-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    /* Two column layout for content pages */
    .page-content-wrapper {
        display: grid;
        grid-template-columns: 1fr 300px;
        gap: var(--space-xl);
    }

    .sidebar {
        position: sticky;
        top: 150px;
        height: fit-content;
    }
}

/* ========================================
   Extra Large Devices (1280px+)
   ======================================== */
@media (min-width: 1280px) {
    :root {
        /* 시니어 친화적 큰 글자 - 데스크톱 */
        --font-size-xs: 16px;
        --font-size-sm: 18px;
        --font-size-base: 20px;
        --font-size-lg: 24px;
        --font-size-xl: 30px;
        --font-size-2xl: 40px;
        --font-size-3xl: 52px;
    }

    /* Fixed Call Header - Desktop */
    .fixed-call-header {
        top: var(--space-lg);
        right: var(--space-xl);
    }

    .fixed-call-header .call-btn-red {
        padding: var(--space-md) var(--space-xl);
        font-size: var(--font-size-lg);
    }

    .fixed-call-header .call-number {
        display: inline;
    }

    /* Consultation Form - Desktop */
    .consultation-form-section {
        max-width: 800px;
        margin: 0 auto;
        padding: var(--space-2xl);
    }

    /* Vehicles Grid - Desktop */
    .vehicles-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .header-top {
        padding: var(--space-lg) var(--space-2xl);
    }

    .region-map-container {
        display: flex;
        align-items: center;
        gap: var(--space-2xl);
        padding: var(--space-2xl);
        max-width: 1200px;
        margin: 0 auto;
    }

    .map-header {
        flex: 1;
        text-align: left;
        margin-bottom: 0;
    }

    .map-title {
        font-size: var(--font-size-2xl);
    }

    .korea-map {
        max-width: 350px;
    }

    .selected-region-info {
        flex: 1;
        margin-top: 0;
        padding: var(--space-xl);
    }

    .main-nav {
        top: 90px;
    }

    .nav-container {
        max-width: 800px;
        margin: 0 auto;
    }

    .nav-item a,
    .nav-more-btn {
        flex-direction: row;
        gap: var(--space-md);
        padding: var(--space-md) var(--space-lg);
    }

    .nav-icon {
        font-size: 22px;
    }

    .nav-text {
        font-size: var(--font-size-base);
    }

    .app-main {
        padding: var(--space-2xl);
    }

    .grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }

    .hero-slider {
        height: 500px;
        border-radius: var(--radius-xl);
        overflow: hidden;
    }

    .team-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    /* Wide layout */
    .page-content-wrapper {
        display: grid;
        grid-template-columns: 1fr 350px;
        gap: var(--space-2xl);
    }

    .floating-call-btn {
        bottom: var(--space-2xl);
        right: var(--space-2xl);
    }
}

/* ========================================
   Ultra Wide Devices (1600px+)
   ======================================== */
@media (min-width: 1600px) {
    .app-main {
        max-width: 1600px;
    }

    .hero-slider {
        height: 550px;
    }
}

/* ========================================
   Landscape Orientation (Mobile)
   ======================================== */
@media (max-height: 500px) and (orientation: landscape) {
    .app-header {
        position: relative;
    }

    .main-nav {
        position: relative;
        top: 0;
    }

    .region-map-container {
        display: flex;
        flex-direction: row;
        padding: var(--space-md);
    }

    .korea-map {
        max-width: 200px;
    }

    .hero-slider {
        height: 200px;
    }

    .floating-call-btn {
        bottom: var(--space-md);
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    #cosmic-canvas,
    .floating-call-btn,
    .main-nav,
    .more-menu-overlay {
        display: none !important;
    }

    .app-header {
        position: relative;
        background: white;
        color: black;
    }

    .app-main {
        padding: 0;
    }

    body {
        background: white;
        color: black;
    }

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

    a {
        color: inherit;
        text-decoration: underline;
    }

    .btn {
        border: 1px solid currentColor;
        background: transparent;
    }
}

/* ========================================
   High DPI / Retina Displays
   ======================================== */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo-icon,
    .nav-icon,
    .float-icon {
        image-rendering: -webkit-optimize-contrast;
    }
}

/* ========================================
   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;
    }

    .pulse-animation,
    .pulse-glow {
        animation: none !important;
    }
}

/* ========================================
   Dark Mode Preference (Already Dark)
   ======================================== */
@media (prefers-color-scheme: light) {
    /* Site is dark by default, no changes needed */
    /* But could add light mode overrides here if desired */
}

/* ========================================
   Touch Device Optimizations
   ======================================== */
@media (hover: none) and (pointer: coarse) {
    .card:hover {
        transform: none;
    }

    .btn:hover {
        transform: none;
    }

    .nav-item a:hover,
    .nav-more-btn:hover {
        background: transparent;
    }

    /* Larger touch targets */
    .nav-item a,
    .nav-more-btn {
        min-height: 48px;
    }

    .btn {
        min-height: 48px;
    }

    .more-menu-list a {
        min-height: 48px;
    }

    /* Remove hover states that don't work on touch */
    .card:hover .card-image img {
        transform: none;
    }

    .float-btn:hover {
        transform: none;
    }
}

/* ========================================
   Focus Visible (Keyboard Navigation)
   ======================================== */
@media (scripting: enabled) {
    :focus:not(:focus-visible) {
        outline: none;
    }

    :focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 2px;
    }
}

/* ========================================
   Safe Area Insets (Notched Devices)
   ======================================== */
@supports (padding: max(0px)) {
    .app-header {
        padding-top: max(var(--space-md), env(safe-area-inset-top));
    }

    .app-footer {
        padding-bottom: max(var(--space-2xl), env(safe-area-inset-bottom));
    }

    .floating-call-btn {
        bottom: max(var(--space-xl), calc(env(safe-area-inset-bottom) + var(--space-md)));
        right: max(var(--space-lg), env(safe-area-inset-right));
    }

    .more-menu {
        padding-bottom: env(safe-area-inset-bottom);
    }
}