/**
 * style.responsive.css
 * 반응형 스타일 - 레이아웃 중심
 * 컴포넌트별 반응형은 style.components.css 참조
 */

/* ===================================
   1400px - Large Desktop
   =================================== */
@media (max-width: 1400px) {
    :root {
        --sidebar-width-left: 260px;
        --sidebar-width-right: 300px;
    }
}

/* ===================================
   1200px - Desktop
   =================================== */
@media (max-width: 1200px) {
    :root {
        --sidebar-width-left: 240px;
        --sidebar-width-right: 280px;
    }
}

/* ===================================
   992px - Tablet Landscape
   =================================== */
@media (max-width: 992px) {
    /* Scroll padding for fixed mobile header */
    html {
        scroll-padding-top: 60px;
    }

    /* Sidebar Hidden by Default */
    .sidebar-left {
        transform: translateX(-100%);
    }

    .sidebar-left.open {
        transform: translateX(0);
    }

    .sidebar-right {
        transform: translateX(100%);
    }

    .sidebar-right.open {
        transform: translateX(0);
    }

    /* Toggle Buttons */
    .sidebar-toggle {
        display: flex;
    }

    .sidebar-toggle-left {
        left: 0;
        border-radius: 0 6px 6px 0;
        border-left: none;
    }

    .sidebar-left.open ~ .sidebar-toggle-left {
        left: calc(var(--sidebar-width-left) - 12px);
        border-radius: 6px;
    }

    .sidebar-toggle-right {
        right: 0;
        border-radius: 6px 0 0 6px;
        border-right: none;
    }

    .sidebar-right.open ~ .sidebar-toggle-right {
        right: calc(var(--sidebar-width-right) - 12px);
        border-radius: 6px;
    }

    /* Main Content Full Width */
    .main-content {
        margin-left: 0;
        margin-right: 0;
    }

    /* Page Sections */
    .page-hero {
        padding: 4rem 0 3rem;
    }

    .content-section {
        padding: 3rem 0;
    }

    /* CTA Section */
    .cta-section {
        padding: 4rem 0;
    }
}

/* ===================================
   768px - Tablet Portrait
   =================================== */
@media (max-width: 768px) {
    /* Typography */
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.25rem; }

    /* Page Hero */
    .page-hero {
        padding: 3rem 0 2.5rem;
    }

    .page-title {
        font-size: 2rem;
    }

    .page-subtitle {
        font-size: 1rem;
        padding: 0 1rem;
    }

    /* Filter Section */
    .filter-title {
        font-size: 1.5rem;
    }

    .filter-section {
        padding: 20px 0;
    }

    .region-tabs {
        gap: 0.5rem;
    }

    .region-tab {
        padding: 0.625rem 1rem;
        font-size: 0.85rem;
    }

    /* Expo List */
    .content-section .expo-list {
        grid-template-columns: 1fr;
    }

    /* Buttons */
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .btn-lg {
        padding: 12px 24px;
        font-size: 1rem;
    }

    /* Content Section */
    .content-section {
        padding: 2.5rem 0;
    }

    /* CTA Section */
    .cta-section {
        padding: 3rem 0;
    }

    .cta-title {
        font-size: 1.5rem;
    }

    .cta-description {
        font-size: 0.95rem;
    }

    /* Row & Col adjustments */
    .row.g-4 {
        --bs-gutter-y: 1rem;
        --bs-gutter-x: 1rem;
    }
}

/* ===================================
   576px - Mobile
   =================================== */
@media (max-width: 576px) {
    /* Scroll padding for smaller mobile header */
    html {
        scroll-padding-top: 55px;
    }

    :root {
        --sidebar-width-left: 280px;
        --sidebar-width-right: 100%;
    }

    .sidebar-right {
        width: 100%;
        max-width: 100%;
    }

    /* Container */
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    /* Typography */
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.15rem; }

    /* Page Hero */
    .page-hero {
        padding: 2rem 0 1.5rem;
    }

    .page-title {
        font-size: 1.75rem;
    }

    .page-subtitle {
        font-size: 0.9rem;
    }

    /* Forms */
    .form-control,
    .form-select {
        padding: 10px 12px;
        font-size: 16px; /* Prevent zoom on iOS */
    }

    .form-floating > .form-control,
    .form-floating > .form-select {
        height: calc(3.25rem + 2px);
        padding-top: 1.625rem;
    }

    .form-floating > label {
        padding: 0.875rem 0.75rem;
    }

    /* Buttons */
    .btn:not(.btn-sm) {
        width: 100%;
        justify-content: center;
    }

    /* Region Tabs */
    .region-tabs {
        flex-wrap: wrap;
    }

    .region-tab {
        flex: 1 1 calc(50% - 0.5rem);
        text-align: center;
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }

    /* Content Section */
    .content-section {
        padding: 2rem 0;
    }

    /* CTA Section */
    .cta-section {
        padding: 2.5rem 0;
    }

    .cta-title {
        font-size: 1.25rem;
    }

    .cta-description {
        font-size: 0.9rem;
    }

    /* Filter Section */
    .filter-section {
        padding: 16px 0;
    }

    .filter-title {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }

    /* No Expo Message */
    .no-expo-message {
        padding: 2.5rem 1rem;
    }

    .no-expo-message i {
        font-size: 2.5rem;
    }

    .no-expo-message h4 {
        font-size: 1.1rem;
    }

    .no-expo-message p {
        font-size: 0.9rem;
    }
}

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

/* ===================================
   Print Styles
   =================================== */
@media print {
    .sidebar-left,
    .sidebar-right,
    .sidebar-toggle,
    .sidebar-overlay,
    .mobile-header,
    .mobile-nav-drawer,
    .mobile-bottom-nav,
    .mobile-fab,
    .mobile-quick-modal {
        display: none !important;
    }

    .main-content {
        margin: 0 !important;
    }

    .page-wrapper {
        padding: 0 !important;
    }

    .page-hero {
        padding: 1rem 0;
    }

    .btn {
        display: none !important;
    }
}