/* --------------------------------------------------
   Harin Yoga - Premium Design System & Styles
   -------------------------------------------------- */

/* 1. Global Reset & Variables */
:root {
    --color-primary: #5B7553;      /* Olive Green */
    --color-primary-dark: #465B3F;
    --color-secondary: #F5EDE3;    /* Warm Ivory */
    --color-accent: #C4956A;       /* Terracotta Gold */
    --color-accent-dark: #AC7D54;
    --color-bg: #FAFAF6;           /* Earth Off-White */
    --color-surface: #FFFFFF;      /* Card BG */
    --color-text: #2D2D2D;         /* Dark Charcoal */
    --color-text-light: #7A7A7A;   /* Muted Gray */
    --color-border: #E5E5DC;       /* Muted Earth Border */
    --color-success: #2E7D32;

    --font-serif: 'Noto Serif KR', serif;
    --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    
    --shadow-sm: 0 2px 8px rgba(91, 117, 83, 0.04);
    --shadow-md: 0 8px 24px rgba(91, 117, 83, 0.06);
    --shadow-lg: 0 16px 40px rgba(91, 117, 83, 0.1);
    
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

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

li {
    list-style: none;
}

button, input, textarea, select {
    font-family: inherit;
    color: inherit;
}

/* 2. Utility Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.3;
}

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

/* 3. Reusable Components (Buttons, Grid, Container) */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 24px;
}

.section-header {
    max-width: 600px;
    margin: 0 auto 56px auto;
}

.section-subtitle {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    text-transform: uppercase;
    display: block;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 36px;
    color: var(--color-text);
    word-break: keep-all;
}

.section-desc {
    margin-top: 16px;
    color: var(--color-text-light);
    font-size: 16px;
}

.section-divider {
    width: 60px;
    height: 2px;
    background-color: var(--color-accent);
    margin: 24px auto 0 auto;
    border-radius: 1px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    border-radius: 28px;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: 1px solid transparent;
    white-space: nowrap;
}

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}

.btn-md {
    padding: 14px 28px;
    font-size: 15px;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 16px;
}

.btn-full {
    width: 100%;
    padding: 15px;
    font-size: 15px;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(91, 117, 83, 0.2);
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: var(--color-primary-dark);
}

.btn-secondary:hover {
    background-color: #EADFD2;
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    border-color: rgba(255, 255, 255, 0.4);
    color: var(--color-surface);
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
}

.btn-icon-sm {
    width: 16px;
    height: 16px;
    margin-left: 6px;
}

/* 4. Header (GNB) */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-smooth);
    border-bottom: 1px solid transparent;
}

.site-header.scrolled {
    background-color: rgba(250, 250, 246, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition-fast);
}

.site-header.scrolled .header-container {
    padding: 14px 24px;
}

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

.logo-serif {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-primary);
}

.logo-sub {
    font-size: 9px;
    letter-spacing: 0.2em;
    color: var(--color-text-light);
    font-weight: 600;
    margin-top: -2px;
}

.desktop-nav {
    display: flex;
    gap: 40px;
}

.desktop-nav a {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
    position: relative;
    padding: 8px 0;
    transition: var(--transition-fast);
}

.desktop-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition-fast);
}

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

.desktop-nav a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1100;
}

.mobile-menu-btn .bar {
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    border-radius: 1px;
    transition: var(--transition-smooth);
}

/* 5. Mobile Drawer Menu */
.mobile-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background-color: var(--color-bg);
    z-index: 999;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.05);
    transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    padding: 100px 32px 40px 32px;
}

.mobile-drawer.active {
    right: 0;
}

.drawer-content {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 100%;
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.mobile-nav a {
    font-size: 20px;
    font-family: var(--font-serif);
    color: var(--color-text);
    font-weight: 600;
    transition: var(--transition-fast);
}

.mobile-nav a:hover {
    color: var(--color-primary);
    padding-left: 8px;
}

/* Drawer Toggle Animation for Hamburger */
.mobile-menu-btn.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.mobile-menu-btn.active .bar:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* 6. Section 1: Hero Section */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 720px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-surface);
    overflow: hidden;
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transform: scale(1.05);
    animation: zoomOutBg 10s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-bg-overlay::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(45, 45, 45, 0.5), rgba(45, 45, 45, 0.3) 60%, rgba(45, 45, 45, 0.6));
}

@keyframes zoomOutBg {
    to {
        transform: scale(1);
    }
}

.hero-container {
    position: relative;
    z-index: 10;
    max-width: 800px;
    padding: 0 24px;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: rgba(196, 149, 106, 0.9); /* Accent color transparent */
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 24px;
    box-shadow: 0 4px 12px rgba(196, 149, 106, 0.25);
    backdrop-filter: blur(4px);
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 56px;
    line-height: 1.25;
    margin-bottom: 24px;
    word-break: keep-all;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.hero-subtitle {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.65;
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.9);
    word-break: keep-all;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0.8;
}

.scroll-text {
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 48px;
    background: rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 16px;
    background: var(--color-surface);
    animation: scrollDown 2s infinite ease-in-out;
}

@keyframes scrollDown {
    0% {
        top: -16px;
    }
    50% {
        top: 48px;
    }
    100% {
        top: 48px;
    }
}

/* 7. Section 2: Empathy Section */
.empathy-section {
    background-color: var(--color-secondary);
}

.empathy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.empathy-card {
    background-color: var(--color-surface);
    border-radius: 16px;
    padding: 40px 32px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    border: 1px solid rgba(91, 117, 83, 0.05);
}

.empathy-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(91, 117, 83, 0.15);
}

.card-icon-box {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background-color: rgba(91, 117, 83, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    color: var(--color-primary);
}

.card-icon {
    width: 28px;
    height: 28px;
    stroke-width: 1.5px;
}

.empathy-card .card-title {
    font-family: var(--font-serif);
    font-size: 20px;
    color: var(--color-text);
    margin-bottom: 16px;
    font-weight: 700;
    line-height: 1.4;
    word-break: keep-all;
}

.empathy-card .card-desc {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.6;
    word-break: keep-all;
}

/* 8. Section 3: Classes Section */
.classes-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.class-card {
    background-color: var(--color-surface);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

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

.class-img-box {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.class-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.class-card:hover .class-img-box img {
    transform: scale(1.04);
}

.class-tags {
    position: absolute;
    bottom: 16px;
    left: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    font-size: 11px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 14px;
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--color-text);
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.tag.highlight {
    background-color: var(--color-primary);
    color: var(--color-surface);
}

.class-info {
    padding: 36px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.class-title {
    font-family: var(--font-serif);
    font-size: 24px;
    margin-bottom: 16px;
    color: var(--color-text);
}

.class-desc {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.65;
    margin-bottom: 32px;
    word-break: keep-all;
    flex-grow: 1;
}

.class-footer {
    margin-top: auto;
}

/* 9. Section 4: Instructor Section */
.instructor-section {
    background-color: #FAF5EE; /* Slightly warmer surface */
}

.instructor-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
    align-items: center;
}

.instructor-img-box {
    position: relative;
    aspect-ratio: 4 / 5;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.instructor-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.instructor-experience-badge {
    position: absolute;
    bottom: -1px;
    right: -1px;
    background-color: var(--color-primary);
    color: var(--color-surface);
    padding: 24px;
    border-top-left-radius: 24px;
    text-align: center;
    min-width: 110px;
    box-shadow: -4px -4px 16px rgba(91, 117, 83, 0.1);
}

.exp-num {
    display: block;
    font-size: 32px;
    font-family: var(--font-serif);
    font-weight: 700;
    line-height: 1;
}

.exp-text {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    line-height: 1.2;
    margin-top: 4px;
    display: block;
}

.instructor-info .info-subtitle {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.15em;
    margin-bottom: 8px;
    display: block;
}

.instructor-name {
    font-family: var(--font-serif);
    font-size: 40px;
    margin-bottom: 28px;
}

.instructor-name .eng-name {
    font-family: var(--font-sans);
    font-size: 18px;
    font-weight: 500;
    color: var(--color-text-light);
    margin-left: 12px;
}

.instructor-credentials {
    margin-bottom: 32px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.instructor-credentials li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: var(--color-text);
}

.instructor-credentials li i {
    width: 18px;
    height: 18px;
    color: var(--color-primary);
    stroke-width: 1.8px;
    margin-top: 2px;
    flex-shrink: 0;
}

.instructor-message {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text-light);
    font-style: italic;
    background-color: var(--color-surface);
    padding: 24px 28px;
    border-left: 3px solid var(--color-accent);
    border-radius: 4px;
    margin-bottom: 36px;
    word-break: keep-all;
}

.trust-badges {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.badge-item {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 16px 12px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.badge-val {
    display: block;
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary-dark);
}

.badge-lbl {
    font-size: 12px;
    color: var(--color-text-light);
    margin-top: 4px;
    display: block;
}

/* 10. Section 5: Testimonials Section */
.testimonials-section {
    background-color: var(--color-secondary);
}

.testimonials-slider {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.testimonial-card {
    background-color: var(--color-surface);
    border-radius: 16px;
    padding: 36px 32px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

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

.stars {
    display: flex;
    gap: 4px;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.star-icon {
    width: 16px;
    height: 16px;
}

.star-icon.fill {
    fill: var(--color-accent);
}

.testimonial-content {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: 24px;
    flex-grow: 1;
    z-index: 2;
    word-break: keep-all;
}

.testimonial-author {
    border-top: 1px solid var(--color-border);
    padding-top: 16px;
    margin-top: auto;
    z-index: 2;
}

.author-name {
    display: block;
    font-weight: 600;
    font-size: 15px;
    color: var(--color-text);
}

.author-meta {
    font-size: 12px;
    color: var(--color-text-light);
    margin-top: 2px;
    display: block;
}

.quote-bg-icon {
    position: absolute;
    right: 24px;
    bottom: 24px;
    width: 64px;
    height: 64px;
    color: rgba(91, 117, 83, 0.04);
    pointer-events: none;
    z-index: 1;
}

.slider-helper-text {
    display: none;
    justify-content: center;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-text-light);
    margin-top: 20px;
}

.helper-icon {
    width: 16px;
    height: 16px;
}

/* 11. Section 6: CTA + Contact Form Section */
.contact-section {
    background-color: var(--color-bg);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 64px;
    align-items: start;
}

.contact-info .info-subtitle {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.15em;
    margin-bottom: 12px;
    display: block;
}

.contact-headline {
    font-family: var(--font-serif);
    font-size: 48px;
    line-height: 1.25;
    margin-bottom: 24px;
    color: var(--color-text);
}

.contact-subcopy {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 32px;
    word-break: keep-all;
}

.contact-notice {
    display: flex;
    gap: 10px;
    background-color: rgba(91, 117, 83, 0.05);
    padding: 16px 20px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--color-primary-dark);
    margin-bottom: 40px;
}

.contact-notice i {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    flex-shrink: 0;
}

.contact-channels {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.channel-btn {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 24px;
    border-radius: 16px;
    transition: var(--transition-smooth);
    border: 1px solid var(--color-border);
    background-color: var(--color-surface);
}

.channel-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.channel-btn.kakao {
    background-color: #FEE500;
    border-color: #FEE500;
    color: #191919;
}

.channel-btn.kakao:hover {
    background-color: #FADA0A;
}

.channel-btn.instagram:hover {
    border-color: var(--color-accent);
}

.channel-icon {
    width: 24px;
    height: 24px;
}

.channel-txt {
    display: flex;
    flex-direction: column;
}

.channel-label {
    font-size: 14px;
    font-weight: 600;
    line-height: 1.2;
}

.channel-id {
    font-size: 12px;
    opacity: 0.7;
    margin-top: 2px;
}

/* Contact Form Box Styling */
.contact-form-box {
    background-color: var(--color-surface);
    border-radius: 16px;
    padding: 48px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(91, 117, 83, 0.06);
}

.form-title {
    font-family: var(--font-serif);
    font-size: 24px;
    margin-bottom: 8px;
}

.form-subtitle {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text);
}

.form-label .required {
    color: #D32F2F;
    margin-left: 2px;
}

.form-control {
    width: 100%;
    background-color: #FAFBF8;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 15px;
    transition: var(--transition-fast);
    outline: none;
}

.form-control:focus {
    border-color: var(--color-primary);
    background-color: var(--color-surface);
    box-shadow: 0 0 0 3px rgba(91, 117, 83, 0.1);
}

textarea.form-control {
    resize: none;
}

.error-feedback {
    display: none;
    font-size: 12px;
    color: #D32F2F;
    margin-top: 6px;
}

.form-group.has-error .form-control {
    border-color: #D32F2F;
    background-color: #FFEBEE;
}

.form-group.has-error .error-feedback {
    display: block;
}

/* Custom Radio Customizing */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 4px;
}

.radio-group-horizontal {
    display: flex;
    gap: 20px;
    margin-top: 4px;
}

.radio-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    user-select: none;
}

.radio-label input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.custom-radio {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-radius: 50%;
    margin-right: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    flex-shrink: 0;
    background-color: var(--color-surface);
}

.radio-label input[type="radio"]:checked + .custom-radio {
    border-color: var(--color-primary);
}

.custom-radio::after {
    content: '';
    width: 10px;
    height: 10px;
    background-color: var(--color-primary);
    border-radius: 50%;
    transform: scale(0);
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.radio-label input[type="radio"]:checked + .custom-radio::after {
    transform: scale(1);
}

.radio-txt {
    color: var(--color-text);
}

.radio-label:hover .custom-radio {
    border-color: var(--color-primary);
}

/* Form Submit State Styling */
.submit-btn {
    position: relative;
    height: 52px;
    margin-top: 8px;
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--color-surface);
    animation: spin 1s ease-in-out infinite;
}

.spinner.hidden {
    display: none;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 12. Footer */
.site-footer {
    background-color: #2D2D2D;
    color: #A0A0A0;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 64px 24px 40px 24px;
}

.footer-brand .brand-title {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 700;
    color: var(--color-surface);
    display: block;
    margin-bottom: 8px;
}

.footer-brand .brand-desc {
    font-size: 14px;
    max-width: 480px;
    line-height: 1.6;
}

.footer-divider {
    height: 1px;
    background-color: rgba(255, 255, 255, 0.08);
    margin: 40px 0 32px 0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

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

/* 13. Floating Actions Widget */
.floating-actions {
    position: fixed;
    bottom: 32px;
    right: 32px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 900;
    transform: translateY(100px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.5s;
}

.floating-actions.show {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.floating-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    color: var(--color-surface);
}

.floating-btn i {
    width: 24px;
    height: 24px;
}

.float-kakao {
    background-color: #FEE500;
    color: #191919;
}

.float-kakao:hover {
    background-color: #FADA0A;
    transform: scale(1.08);
}

.float-cta {
    background-color: var(--color-primary);
}

.float-cta:hover {
    background-color: var(--color-primary-dark);
    transform: scale(1.08);
}

.floating-btn .tooltip,
.floating-btn .cta-txt {
    position: absolute;
    right: 68px;
    background-color: #2D2D2D;
    color: var(--color-surface);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    transform: translateX(10px);
    transition: var(--transition-fast);
    pointer-events: none;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.floating-btn .tooltip::after,
.floating-btn .cta-txt::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -4px;
    transform: translateY(-50%) rotate(45deg);
    width: 8px;
    height: 8px;
    background-color: #2D2D2D;
}

.floating-btn:hover .tooltip,
.floating-btn:hover .cta-txt {
    opacity: 1;
    transform: translateX(0);
}

/* 14. Toast Popup Alert */
.toast {
    position: fixed;
    bottom: 32px;
    left: 52%;
    transform: translate(-50%, 100px);
    background-color: var(--color-surface);
    border-radius: 12px;
    padding: 16px 28px;
    box-shadow: 0 12px 32px rgba(91, 117, 83, 0.18);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.5s, visibility 0.5s;
    border-left: 4px solid var(--color-primary);
}

.toast.show {
    transform: translate(-50%, 0);
    opacity: 1;
    visibility: visible;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 16px;
}

.toast-icon {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
}

.toast-txt-box {
    display: flex;
    flex-direction: column;
}

.toast-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text);
}

.toast-desc {
    font-size: 13px;
    color: var(--color-text-light);
    margin-top: 2px;
}

/* 15. Scroll Triggered Animation Styles */
.scroll-anim {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-anim.active {
    opacity: 1;
    transform: translateY(0);
}

/* Delay modifiers */
.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }
.delay-3 { transition-delay: 0.45s; }

/* 16. Responsiveness (Mobile & Tablet) */
@media (max-width: 1199px) {
    .section-container {
        padding: 64px 24px;
    }
    
    .hero-title {
        font-size: 44px;
    }
    
    .empathy-grid {
        gap: 20px;
    }
    
    .classes-grid {
        gap: 24px;
    }
    
    .instructor-layout {
        gap: 40px;
    }
    
    .instructor-name {
        font-size: 32px;
    }
    
    .testimonials-slider {
        gap: 20px;
    }
    
    .contact-layout {
        gap: 40px;
    }
}

@media (max-width: 991px) {
    .desktop-nav, .header-cta {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .empathy-grid {
        grid-template-columns: 1fr;
    }
    
    .classes-grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .instructor-layout {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .testimonials-slider {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .contact-layout {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }
}

@media (max-width: 767px) {
    .section-container {
        padding: 48px 16px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .section-header {
        margin-bottom: 36px;
    }
    
    /* Hero mobile adjusting */
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 15px;
        margin-bottom: 32px;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .hero-badge {
        font-size: 12px;
        padding: 5px 12px;
    }
    
    /* Testimonials Touch-Swipe for mobile */
    .testimonials-slider {
        display: flex;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        gap: 16px;
        padding: 8px 4px 20px 4px;
        margin: 0 -16px;
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
    }
    
    .testimonials-slider::-webkit-scrollbar {
        height: 4px;
    }
    
    .testimonials-slider::-webkit-scrollbar-track {
        background: rgba(91, 117, 83, 0.05);
        border-radius: 2px;
    }
    
    .testimonials-slider::-webkit-scrollbar-thumb {
        background: rgba(91, 117, 83, 0.2);
        border-radius: 2px;
    }
    
    .testimonial-card {
        flex: 0 0 85%;
        scroll-snap-align: center;
        padding: 28px 24px;
    }
    
    .slider-helper-text {
        display: flex;
    }
    
    /* Form Padding Adjusting */
    .contact-form-box {
        padding: 32px 20px;
    }
    
    .contact-headline {
        font-size: 32px;
        text-align: center;
    }
    
    .contact-subcopy {
        text-align: center;
        font-size: 15px;
    }
    
    .contact-notice {
        font-size: 13px;
        padding: 12px 16px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    /* Floating buttons for mobile */
    .floating-actions {
        bottom: 20px;
        right: 20px;
    }
    
    .floating-btn {
        width: 48px;
        height: 48px;
    }
    
    .floating-btn .tooltip,
    .floating-btn .cta-txt {
        display: none; /* Hide tooltips on mobile touch screens */
    }
}