/* ===================================
   DOGILOO - GLOBAL CAREER COACHING
   Professional Landing Page Styles
   =================================== */

/* === CSS VARIABLES === */
:root {
    /* Primary Colors - Bright & Professional */
    --primary-color: #0066CC;
    --primary-dark: #004C99;
    --primary-light: #3385D6;
    --secondary-color: #00B8A9;
    --accent-color: #FFB400;
    
    /* Neutral Colors */
    --dark: #1A1A2E;
    --dark-gray: #2D3748;
    --medium-gray: #4A5568;
    --light-gray: #E2E8F0;
    --lighter-gray: #F7FAFC;
    --white: #FFFFFF;
    
    /* Status Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --info: #3B82F6;
    
    /* Typography */
    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-korean: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* === RESET & BASE STYLES === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--white);
}

/* Korean text support */
body:lang(ko),
[lang="ko"],
*[data-lang] {
    font-family: var(--font-korean);
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-base);
}

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

ul {
    list-style: none;
}

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

/* === CONTAINER === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

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

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

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

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

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

/* === NAVIGATION === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-base);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav-brand h1 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-color);
    margin: 0;
}

.brand-tagline {
    font-size: 0.75rem;
    color: var(--medium-gray);
    font-weight: 400;
    margin-left: var(--spacing-xs);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-menu a {
    font-weight: 500;
    color: var(--dark-gray);
    transition: color var(--transition-base);
}

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

/* Language Switcher */
.language-switcher {
    display: flex;
    gap: var(--spacing-xs);
    margin-left: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 2px solid var(--light-gray);
}

.lang-btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    background: transparent;
    color: var(--medium-gray);
    border: 1px solid var(--light-gray);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    background: var(--lighter-gray);
    color: var(--primary-color);
}

.lang-btn.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--dark);
    cursor: pointer;
}

/* === SECTION STYLES === */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: 2.75rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--medium-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* === HERO SECTION === */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.9), rgba(0, 184, 169, 0.8));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-md);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
    opacity: 0.95;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-2xl);
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 1rem;
    font-weight: 500;
    opacity: 0.9;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    font-size: 2rem;
    color: var(--white);
    opacity: 0.7;
    z-index: 2;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-20px);
    }
    60% {
        transform: translateX(-50%) translateY(-10px);
    }
}

/* === ABOUT SECTION === */
.about-section {
    background: var(--lighter-gray);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.about-image {
    position: sticky;
    top: 120px;
}

.image-placeholder {
    background: linear-gradient(135deg, var(--primary-light), var(--secondary-color));
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    color: var(--white);
    aspect-ratio: 3/4;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
}

.image-placeholder i {
    font-size: 6rem;
    margin-bottom: var(--spacing-md);
}

.image-placeholder p {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Profile Image Styles */
.profile-image-wrapper {
    width: 100%;
    aspect-ratio: 3/4;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    background: var(--lighter-gray);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform var(--transition-slow);
}

.profile-image:hover {
    transform: scale(1.05);
}

.about-social {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: var(--white);
    border-radius: var(--radius-md);
    font-weight: 600;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.social-btn.linkedin {
    color: #0077B5;
}

.social-btn.naver {
    color: #03C75A;
}

.social-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.about-text {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.about-name {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.about-role {
    font-size: 1.125rem;
    color: var(--medium-gray);
    margin-bottom: var(--spacing-lg);
}

.about-description p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--dark-gray);
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.highlight-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--lighter-gray);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
}

.highlight-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
}

.highlight-item strong {
    display: block;
    color: var(--dark);
    margin-bottom: 0.25rem;
}

.highlight-item p {
    color: var(--medium-gray);
    font-size: 0.9375rem;
    margin: 0;
}

/* === SERVICES SECTION === */
.services-section {
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

/* Adjust layout for 7 items: 3-3-1 or 3-4 pattern */
.services-grid .service-card:nth-last-child(1):nth-child(7) {
    grid-column: 2 / 3; /* Center the 7th item if alone in row */
}

.service-card {
    position: relative;
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.service-card.featured {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
}

.service-card.featured .service-title,
.service-card.featured .service-description,
.service-card.featured .service-features li {
    color: var(--white);
}

.service-card.featured .service-icon {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
}

.featured-badge {
    position: absolute;
    top: -12px;
    right: var(--spacing-md);
    background: var(--accent-color);
    color: var(--dark);
    padding: 0.375rem 1rem;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.service-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary-color));
    color: var(--white);
    border-radius: var(--radius-lg);
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.service-title {
    font-size: 1.5rem;
    color: var(--dark);
    margin-bottom: var(--spacing-sm);
}

.service-description {
    color: var(--medium-gray);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--dark-gray);
    font-size: 0.9375rem;
}

.service-features i {
    color: var(--success);
    font-size: 1rem;
}

.service-card.featured .service-features i {
    color: var(--accent-color);
}

.services-cta {
    text-align: center;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--lighter-gray), var(--light-gray));
    border-radius: var(--radius-xl);
}

.services-cta p {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: var(--spacing-md);
}

/* === WEBINARS SECTION === */
.webinars-section {
    background: linear-gradient(135deg, var(--lighter-gray), var(--white));
}

.webinars-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.webinar-card {
    position: relative;
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--light-gray);
    transition: all var(--transition-base);
}

.webinar-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.webinar-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--accent-color);
    color: var(--dark);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.webinar-header {
    display: flex;
    align-items: start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.webinar-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: var(--radius-lg);
    font-size: 1.75rem;
    flex-shrink: 0;
}

.webinar-title {
    font-size: 1.5rem;
    color: var(--dark);
    margin: 0;
}

.webinar-subtitle {
    font-size: 1.125rem;
    color: var(--medium-gray);
    margin-bottom: var(--spacing-md);
}

.webinar-content {
    margin-bottom: var(--spacing-lg);
}

.webinar-topics {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.webinar-topics li {
    display: flex;
    align-items: start;
    gap: var(--spacing-sm);
    color: var(--dark-gray);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.webinar-topics i {
    color: var(--success);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.webinar-info {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--lighter-gray);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--dark-gray);
    font-size: 0.9375rem;
    font-weight: 500;
}

.info-item i {
    color: var(--primary-color);
}

/* === CONTACT SECTION === */
.contact-section {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.contact-title {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.contact-description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.contact-method {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.method-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    color: var(--primary-color);
    border-radius: var(--radius-md);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.method-info h4 {
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
}

.method-info a {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9375rem;
    transition: color var(--transition-base);
}

.method-info a:hover {
    color: var(--accent-color);
}

.contact-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.visual-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.visual-card i {
    font-size: 4rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.visual-card h3 {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.visual-card p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    margin: 0;
}

/* === FOOTER === */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand h3 {
    font-size: 2rem;
    color: var(--primary-light);
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-column h4 {
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    transition: color var(--transition-base);
}

.footer-column a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

/* === BACK TO TOP BUTTON === */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* === RESPONSIVE DESIGN === */

/* Tablet (768px - 1024px) */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        position: relative;
        top: 0;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}

/* Mobile (max-width: 768px) */
@media (max-width: 768px) {
    /* Typography */
    h1 { font-size: 2.25rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    
    .section-title {
        font-size: 2rem;
    }
    
    /* Spacing */
    section {
        padding: var(--spacing-2xl) 0;
    }
    
    /* Navigation */
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        display: none;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .language-switcher {
        border-left: none;
        border-top: 2px solid var(--light-gray);
        padding-left: 0;
        padding-top: var(--spacing-md);
        margin-left: 0;
        margin-top: var(--spacing-md);
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    /* Hero */
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    /* Services */
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    /* Webinars */
    .webinars-grid {
        grid-template-columns: 1fr;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    /* Back to Top */
    .back-to-top {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        width: 45px;
        height: 45px;
    }
}

/* Small Mobile (max-width: 480px) */
@media (max-width: 480px) {
    .hero-title {
        font-size: 1.875rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9375rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .service-card,
    .webinar-card {
        padding: var(--spacing-md);
    }
}

/* === ANIMATIONS === */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* Smooth scroll padding for fixed navbar */
html {
    scroll-padding-top: 80px;
}