/**
 * style.css - 메인 스타일시트
 * 대구 집수리 교육 - 행집사
 * 토스 스타일 + Redfin 참고 + Cosmic 컬러 스킴
 */

/* ========================================
   CSS Variables - Cosmic Color Scheme
======================================== */
:root {
    /* Primary Colors - Cosmic Theme */
    --primary: #667eea;
    --primary-dark: #5a67d8;
    --primary-light: #7c8ff4;
    --primary-rgb: 102, 126, 234;

    /* Secondary Colors */
    --secondary: #764ba2;
    --secondary-dark: #6b4393;
    --secondary-light: #8b5cb3;

    /* Accent Colors */
    --accent: #f093fb;
    --accent-dark: #e879f0;
    --accent-light: #f5a8fc;

    /* Gradient */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-cosmic: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --gradient-light: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    --gradient-dark: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);

    /* Redfin-inspired Red Accent */
    --redfin-red: #E51937;
    --redfin-red-dark: #c4152f;

    /* Neutral Colors */
    --text-primary: #191f28;
    --text-secondary: #4e5968;
    --text-tertiary: #8b95a1;
    --text-white: #ffffff;

    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f2f4f6;
    --bg-dark: #0f0c29;
    --bg-cosmic: #1a1a2e;

    /* Border Colors */
    --border-light: #e5e8eb;
    --border-default: #d1d6db;
    --border-dark: #b0b8c1;

    /* Status Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;

    /* Shadows - Toss style soft shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-cosmic: 0 10px 40px rgba(102, 126, 234, 0.3);
    --shadow-glow: 0 0 30px rgba(102, 126, 234, 0.4);

    /* Typography */
    --font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Border Radius - Toss style rounded corners */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-tooltip: 600;

    /* Container */
    --container-max: 1200px;
    --container-padding: 20px;

    /* Header */
    --header-height: 72px;
}

/* ========================================
   Reset & Base Styles
======================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Skip Navigation */
.skip-nav {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary);
    color: var(--text-white);
    padding: var(--space-2) var(--space-4);
    z-index: var(--z-tooltip);
    transition: top var(--transition-fast);
}

.skip-nav:focus {
    top: 0;
}

/* Links */
a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary);
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Lists */
ul, ol {
    list-style: none;
}

/* Buttons */
button {
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    border: none;
    background: none;
    outline: none;
}

/* Inputs */
input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    outline: none;
}

/* Utility Classes */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ========================================
   Container
======================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.container-sm {
    max-width: 800px;
}

.container-lg {
    max-width: 1400px;
}

/* ========================================
   Typography
======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--space-4);
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Buttons - Toss Style
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-base);
    font-weight: 600;
    line-height: 1.5;
    text-align: center;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-cosmic);
    color: var(--text-white);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--border-light);
    color: var(--text-primary);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--text-white);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-lg);
    border-radius: var(--radius-xl);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-md);
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: var(--radius-full);
}

/* ========================================
   Header - Toss Style Sticky Header
======================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transition: all var(--transition-base);
}

.site-header.scrolled {
    box-shadow: var(--shadow-sm);
}

.header-inner {
    height: var(--header-height);
}

.header-inner .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
}

.logo-icon {
    font-size: 2rem;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.logo-sub {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    letter-spacing: 0.05em;
}

/* Desktop Navigation */
.main-nav {
    display: none;
}

@media (min-width: 1024px) {
    .main-nav {
        display: block;
    }
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(102, 126, 234, 0.08);
}

.dropdown-icon {
    transition: transform var(--transition-fast);
}

.nav-item:hover .dropdown-icon {
    transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    padding: var(--space-2);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li a {
    display: block;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.dropdown-menu li a:hover {
    color: var(--primary);
    background: rgba(102, 126, 234, 0.08);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.btn-cta {
    display: none;
}

@media (min-width: 768px) {
    .btn-cta {
        display: inline-flex;
    }
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.mobile-menu-toggle:hover {
    background: var(--bg-tertiary);
}

@media (min-width: 1024px) {
    .mobile-menu-toggle {
        display: none;
    }
}

.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 20px;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.mobile-menu-toggle.active .hamburger span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active .hamburger span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active .hamburger span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
.mobile-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    padding: var(--space-6) var(--container-padding);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: var(--z-fixed);
}

.mobile-nav.active {
    transform: translateX(0);
}

@media (min-width: 1024px) {
    .mobile-nav {
        display: none;
    }
}

.mobile-nav-list {
    margin-bottom: var(--space-8);
}

.mobile-nav-item {
    border-bottom: 1px solid var(--border-light);
}

.mobile-nav-toggle,
.mobile-nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-4) 0;
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--text-primary);
    text-align: left;
}

.mobile-nav-toggle svg {
    transition: transform var(--transition-fast);
}

.mobile-nav-toggle[aria-expanded="true"] svg {
    transform: rotate(180deg);
}

.mobile-submenu {
    display: none;
    padding-bottom: var(--space-4);
}

.mobile-submenu.active {
    display: block;
}

.mobile-submenu li a {
    display: block;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

.mobile-nav-cta {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

/* ========================================
   Main Content
======================================== */
.site-main {
    padding-top: var(--header-height);
    min-height: 100vh;
}

/* ========================================
   Hero Section - Toss Style
======================================== */
.hero-section {
    position: relative;
    padding: var(--space-16) 0 var(--space-24);
    background: var(--gradient-light);
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(240, 147, 251, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(102, 126, 234, 0.1);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-6);
}

.hero-badge-text {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-6);
}

.hero-title .highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
    max-width: 560px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-10);
}

.hero-stat {
    text-align: center;
}

.hero-stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.hero-stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    margin-top: var(--space-1);
}

/* ========================================
   Slider Section - Carousel Style
======================================== */
.slider-section {
    position: relative;
    background: var(--bg-cosmic);
    overflow: hidden;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
}

@media (max-width: 768px) {
    .slider-container {
        height: 400px;
    }
}

.slider-track {
    display: flex;
    height: 100%;
    transition: transform 500ms ease;
}

.slider-slide {
    flex: 0 0 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide-background {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.6;
}

.slide-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 12, 41, 0.9) 0%, rgba(48, 43, 99, 0.7) 100%);
}

.slide-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--space-8);
    max-width: 800px;
}

.slide-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: var(--space-4);
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.slide-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-8);
}

/* Slider Navigation */
.slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-full);
    color: var(--text-white);
    transition: all var(--transition-fast);
    z-index: 10;
}

.slider-nav:hover {
    background: var(--primary);
    transform: translateY(-50%) scale(1.1);
}

.slider-prev {
    left: var(--space-6);
}

.slider-next {
    right: var(--space-6);
}

/* Slider Pagination */
.slider-pagination {
    position: absolute;
    bottom: var(--space-6);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--space-2);
    z-index: 10;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.4);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.slider-dot.active {
    background: var(--primary);
    width: 32px;
}

/* ========================================
   Section Styles
======================================== */
.section {
    padding: var(--space-20) 0;
}

.section-sm {
    padding: var(--space-12) 0;
}

.section-lg {
    padding: var(--space-24) 0;
}

.section-dark {
    background: var(--bg-cosmic);
    color: var(--text-white);
}

.section-gradient {
    background: var(--gradient-dark);
    color: var(--text-white);
}

.section-light {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-12);
}

.section-badge {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
}

.section-dark .section-badge {
    background: rgba(255, 255, 255, 0.1);
    color: var(--accent);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: var(--space-4);
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

.section-dark .section-description {
    color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   Course Cards - Toss/Redfin Style
======================================== */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
}

.course-card {
    position: relative;
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.course-card-badge {
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    padding: var(--space-1) var(--space-3);
    background: var(--gradient-primary);
    color: var(--text-white);
    font-size: var(--font-size-xs);
    font-weight: 700;
    border-radius: var(--radius-full);
    z-index: 1;
}

.course-card-badge.popular {
    background: var(--redfin-red);
}

.course-card-badge.recommended {
    background: var(--success);
}

.course-card-image {
    position: relative;
    height: 180px;
    background: var(--gradient-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.course-card-icon {
    font-size: 4rem;
    opacity: 0.8;
}

.course-card-content {
    padding: var(--space-6);
}

.course-card-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.course-card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.course-card-meta span {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.course-card-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    line-height: 1.7;
}

.course-card-price {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.course-card-price .amount {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--primary);
}

.course-card-price .unit {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.course-card-features {
    margin-bottom: var(--space-6);
}

.course-card-features li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.course-card-features li::before {
    content: '✓';
    color: var(--success);
    font-weight: 700;
}

/* ========================================
   Feature Cards
======================================== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-6);
}

.feature-card {
    padding: var(--space-8);
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    text-align: center;
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.section-dark .feature-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
}

.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto var(--space-5);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-light);
    border-radius: var(--radius-xl);
    font-size: 2rem;
}

.section-dark .feature-icon {
    background: rgba(102, 126, 234, 0.2);
}

.feature-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--space-3);
}

.feature-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.7;
}

.section-dark .feature-description {
    color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   Testimonial Cards
======================================== */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-6);
}

.testimonial-card {
    padding: var(--space-8);
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-lg);
}

.testimonial-rating {
    display: flex;
    gap: var(--space-1);
    margin-bottom: var(--space-4);
    color: #fbbf24;
}

.testimonial-content {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-6);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-weight: 700;
}

.testimonial-info {
    flex: 1;
}

.testimonial-name {
    font-weight: 600;
    color: var(--text-primary);
}

.testimonial-meta {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

/* ========================================
   Contact Form - Toss Style
======================================== */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.form-required {
    color: var(--redfin-red);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--space-4);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    background: var(--bg-primary);
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-tertiary);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.form-checkbox input {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--primary);
}

.form-checkbox label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

.form-radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.form-radio {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: var(--bg-secondary);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-radio:has(input:checked) {
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--primary);
}

.form-radio input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.form-radio span {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* ========================================
   Footer
======================================== */
.site-footer {
    background: var(--bg-cosmic);
    color: var(--text-white);
}

.footer-top {
    padding: var(--space-16) 0 var(--space-12);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr) 1.5fr;
    gap: var(--space-8);
}

@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer-col {
    min-width: 0;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.footer-logo .logo-icon {
    font-size: 1.5rem;
}

.footer-logo .logo-text {
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.footer-desc {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: var(--space-6);
}

.footer-contact-quick .contact-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.footer-contact-quick .contact-link:hover {
    background: var(--primary);
    color: var(--text-white);
}

.footer-title {
    font-size: var(--font-size-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: var(--space-5);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-cta p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--space-4);
}

.btn-footer {
    width: 100%;
}

.footer-bottom {
    padding: var(--space-6) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom-inner {
    text-align: center;
}

.company-info {
    margin-bottom: var(--space-4);
}

.company-info p {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: var(--space-1);
}

.legal-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.legal-links a {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.6);
}

.legal-links a:hover {
    color: var(--text-white);
}

.legal-links .divider {
    color: rgba(255, 255, 255, 0.3);
}

.copyright {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.4);
}

/* ========================================
   Floating Contact Buttons
======================================== */
.floating-contact {
    position: fixed;
    right: var(--space-4);
    bottom: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    z-index: var(--z-sticky);
}

@media (min-width: 768px) {
    .floating-contact {
        right: var(--space-6);
        bottom: var(--space-6);
    }
}

.floating-btn {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.floating-call {
    background: var(--success);
    color: var(--text-white);
}

.floating-consult {
    background: var(--gradient-primary);
    color: var(--text-white);
}

.floating-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
    color: var(--text-white);
}

/* ========================================
   Back to Top Button
======================================== */
.back-to-top {
    position: fixed;
    right: var(--space-4);
    bottom: calc(var(--space-4) + 130px);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: var(--z-sticky);
}

@media (min-width: 768px) {
    .back-to-top {
        right: var(--space-6);
        bottom: calc(var(--space-6) + 130px);
    }
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-white);
}

/* ========================================
   Page Hero (for inner pages)
======================================== */
.page-hero {
    padding: var(--space-16) 0 var(--space-12);
    background: var(--gradient-light);
    text-align: center;
}

.page-hero-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--space-4);
}

.page-hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.breadcrumb a:hover {
    color: var(--primary);
}

.breadcrumb-separator {
    color: var(--text-tertiary);
}

/* ========================================
   FAQ Accordion
======================================== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--space-4);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding: 0 var(--space-6) var(--space-6);
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-answer p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ========================================
   Stats Section
======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-8);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-2);
}

.section-dark .stat-number {
    background: linear-gradient(135deg, var(--accent) 0%, #fff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

.section-dark .stat-label {
    color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   Team Cards
======================================== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
}

.team-card {
    text-align: center;
    padding: var(--space-8);
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.team-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.team-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--space-5);
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.team-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-1);
}

.team-role {
    font-size: var(--font-size-sm);
    color: var(--primary);
    font-weight: 500;
    margin-bottom: var(--space-4);
}

.team-bio {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   Portfolio Grid
======================================== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

.portfolio-item {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.portfolio-image {
    width: 100%;
    height: 250px;
    background: var(--gradient-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--space-6);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: var(--space-2);
}

.portfolio-category {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
}

/* ========================================
   Location / Map Section
======================================== */
.map-container {
    width: 100%;
    height: 400px;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    background: var(--bg-tertiary);
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.location-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.location-card {
    padding: var(--space-6);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.location-card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-light);
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
}

.location-card-title {
    font-size: var(--font-size-base);
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.location-card-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   News / Notice List
======================================== */
.news-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.news-item {
    display: flex;
    gap: var(--space-6);
    padding: var(--space-6);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.news-item:hover {
    box-shadow: var(--shadow-md);
}

.news-date {
    flex-shrink: 0;
    width: 80px;
    text-align: center;
}

.news-date-day {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.news-date-month {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.news-content {
    flex: 1;
}

.news-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.news-excerpt {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   CTA Section
======================================== */
.cta-section {
    padding: var(--space-20) 0;
    background: var(--gradient-primary);
    text-align: center;
}

.cta-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: var(--space-4);
}

.cta-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4);
}

.btn-white {
    background: var(--text-white);
    color: var(--primary);
}

.btn-white:hover {
    background: var(--bg-secondary);
    color: var(--primary);
    transform: translateY(-2px);
}

.btn-outline-white {
    background: transparent;
    color: var(--text-white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--text-white);
    color: var(--text-white);
}

/* ========================================
   Privacy & Terms Pages
======================================== */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
}

.legal-content h2 {
    font-size: var(--font-size-2xl);
    margin-top: var(--space-10);
    margin-bottom: var(--space-4);
}

.legal-content h3 {
    font-size: var(--font-size-xl);
    margin-top: var(--space-8);
    margin-bottom: var(--space-3);
}

.legal-content p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.legal-content ul {
    margin: var(--space-4) 0;
    padding-left: var(--space-6);
}

.legal-content ul li {
    position: relative;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-2);
}

.legal-content ul li::before {
    content: '•';
    position: absolute;
    left: calc(var(--space-4) * -1);
    color: var(--primary);
}

/* ========================================
   Sitemap Page
======================================== */
.sitemap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-8);
}

.sitemap-section {
    padding: var(--space-6);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.sitemap-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 2px solid var(--border-light);
}

.sitemap-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.sitemap-links a {
    padding: var(--space-2) 0;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.sitemap-links a:hover {
    color: var(--primary);
    padding-left: var(--space-2);
}

/* ========================================
   Careers Page
======================================== */
.job-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.job-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.job-card:hover {
    box-shadow: var(--shadow-md);
}

.job-info {
    flex: 1;
}

.job-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.job-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.job-meta span {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}