/* Posty - Tinrobot Style */
:root {
    /* Tinrobot Brand Colors */
    --primary: #00B4D8;
    --primary-dark: #0096C7;
    --primary-light: #48CAE4;
    --accent: #90E0EF;
    --accent-dark: #00B4D8;
    
    /* Dark Theme (Default) */
    --bg: #000000;
    --bg-secondary: #0A0A0A;
    --bg-tertiary: #141414;
    --text: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-tertiary: rgba(255, 255, 255, 0.6);
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-hover: rgba(255, 255, 255, 0.08);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme */
:root[data-theme="light"] {
    --bg: #FFFFFF;
    --bg-secondary: #F5F5F5;
    --bg-tertiary: #ECECEC;
    --text: #000000;
    --text-secondary: rgba(0, 0, 0, 0.8);
    --text-tertiary: rgba(0, 0, 0, 0.6);
    --glass-bg: rgba(0, 0, 0, 0.03);
    --glass-border: rgba(0, 0, 0, 0.1);
    --glass-hover: rgba(0, 0, 0, 0.05);
}

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

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

/* Handsome Pro Font */
@font-face {
    font-family: 'Handsome Pro';
    src: url('fonts/HandsomePro-Regular.woff') format('woff'),
         url('fonts/HandsomePro-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Handsome Pro';
    src: url('fonts/HandsomePro-Regular.woff') format('woff'),
         url('fonts/HandsomePro-Regular.ttf') format('truetype');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Handsome Pro';
    src: url('fonts/HandsomePro-Regular.woff') format('woff'),
         url('fonts/HandsomePro-Regular.ttf') format('truetype');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Handsome Pro';
    src: url('fonts/HandsomePro-Regular.woff') format('woff'),
         url('fonts/HandsomePro-Regular.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

body {
    font-family: 'Apple SD Gothic Neo', 'Noto Sans KR', 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    transition: background var(--transition-base), color var(--transition-base);
}

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    z-index: 9999;
    transition: width var(--transition-fast);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: all var(--transition-base);
}

:root[data-theme="light"] .nav {
    background: rgba(255, 255, 255, 0.8);
}

.nav.scrolled {
    background: rgba(0, 0, 0, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

:root[data-theme="light"] .nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-left: auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    transition: transform var(--transition-base);
}

.logo:hover {
    transform: scale(1.05);
}

.logo-image {
    width: 2.5rem;
    height: 2.5rem;
    object-fit: contain;
    display: block;
}

.logo-image-dark {
    display: block;
}

.logo-image-light {
    display: none;
}

:root[data-theme="light"] .logo-image-dark {
    display: none;
}

:root[data-theme="light"] .logo-image-light {
    display: block;
}

.logo-text {
    height: 2rem;
    width: auto;
    object-fit: contain;
    display: block;
    transform: translate(-5px, 6px);
}

.logo-text-dark {
    display: block;
}

.logo-text-light {
    display: none;
}

:root[data-theme="light"] .logo-text-dark {
    display: none;
}

:root[data-theme="light"] .logo-text-light {
    display: block;
}

/* Back to CheezLAB Button */
.back-to-tinrobot-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 10px;
    text-decoration: none;
    transition: all 0.3s ease;
    flex-shrink: 0;
    margin-right: 0.5rem;
}

.back-to-tinrobot-nav:hover {
    background: rgba(0, 180, 216, 0.15);
    border-color: var(--primary);
    transform: translateX(-3px);
    box-shadow: 0 4px 12px rgba(0, 180, 216, 0.3);
}

.back-to-tinrobot-nav .back-icon {
    width: 20px;
    height: 20px;
    stroke: var(--text-secondary);
    transition: all 0.3s ease;
}

.back-to-tinrobot-nav:hover .back-icon {
    stroke: var(--primary-light);
    transform: translateX(-2px);
}

:root[data-theme="light"] .back-to-tinrobot-nav {
    background: transparent;
}

:root[data-theme="light"] .back-to-tinrobot-nav:hover {
    background: rgba(0, 180, 216, 0.1);
}

@media (max-width: 768px) {
    .back-to-tinrobot-nav {
        width: 36px;
        height: 36px;
        margin-right: 0.5rem;
    }
    
    .back-to-tinrobot-nav .back-icon {
        width: 18px;
        height: 18px;
    }
}

/* CheezLAB Link in Nav */
.nav-cheezlab {
    color: var(--primary);
    font-weight: 600;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-base);
}

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

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

/* Theme Toggle */
.theme-toggle {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 0.5rem;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
}

.theme-toggle:hover {
    background: var(--glass-hover);
    transform: scale(1.05);
}

.theme-icon {
    width: 20px;
    height: 20px;
    stroke: var(--text);
}

/* Mobile Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    margin-left: auto;
}

.nav-toggle span {
    width: 1.5rem;
    height: 2px;
    background: var(--text);
    transition: all var(--transition-base);
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6.5rem 2rem 3.25rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(0, 180, 216, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(144, 224, 239, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--text);
    text-wrap: balance;
    word-break: keep-all;
}

.hero-title-type {
    position: relative;
    display: inline-block;
    white-space: pre-line;
    padding-right: 0.15em;
    line-height: 1.1;
    min-height: 2.8em;
    min-width: 0.35em;
    text-wrap: balance;
    word-break: keep-all;
}

.hero-title-type::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 0.08em;
    height: 80%;
    transform: translateY(10%);
    background: var(--primary);
    opacity: 0;
}

.hero-title-type.pre-blink-active::after,
.hero-title-type.is-typing::after {
    opacity: 1;
    animation: blink 0.8s step-end infinite;
}

.hero-title-type.pre-blink-hidden::after,
.hero-title-type.completed::after {
    opacity: 0;
    animation: none;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.accent-letter {
    color: var(--primary);
}

.highlight {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.hero-subtitle.show {
    opacity: 1;
    transform: translateY(0);
}

.hero-features {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.feature-tag {
    background: var(--glass-bg);
    color: var(--primary);
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-xl);
    font-size: 0.8125rem;
    font-weight: 500;
    border: 1px solid var(--glass-border);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #FFFFFF;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 180, 216, 0.3);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text);
    border: 1px solid var(--glass-border);
}

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

/* Phone Mockup */
.hero-visual {
    display: flex;
    justify-content: center;
    animation: fadeInRight 0.8s ease-out 0.2s both;
}

.phone-mockup {
    width: 280px;
    height: 574px;
    background: linear-gradient(135deg, #1f2937, #374151);
    border-radius: var(--radius-xl);
    padding: 0.5rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-screenshot {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
}

/* Features Section */
.features, .screenshots, .about, .contact {
    padding: 3rem 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--radius-lg);
    padding: 2px;
    background: linear-gradient(135deg, var(--primary), transparent, var(--primary-light));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    z-index: 1;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    transform: translateY(-8px) scale(1.02);
    background: var(--glass-hover);
    border-color: rgba(0, 180, 216, 0.3);
    box-shadow: 
        0 20px 40px rgba(0, 180, 216, 0.2),
        0 8px 32px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

:root[data-theme="light"] .feature-card {
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

:root[data-theme="light"] .feature-card:hover {
    background: rgba(255, 255, 255, 0.85);
    border-color: rgba(0, 180, 216, 0.3);
}

.feature-icon {
    width: 3.5rem;
    height: 3.5rem;
    margin: 0 auto var(--spacing-md);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #FFFFFF;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 2;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    box-shadow: 0 8px 24px rgba(0, 180, 216, 0.3);
}

.feature-card h3 {
    color: var(--text);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.125rem;
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.feature-card:hover h3 {
    color: var(--primary-light);
    transform: translateX(2px);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.feature-card:hover p {
    color: var(--text);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    padding: 2.5rem 1.75rem 1.75rem;
    border-top: 1px solid var(--glass-border);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-main {
    display: grid;
    grid-template-columns: 1.4fr 2fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--glass-border);
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-brand .logo {
    color: var(--text);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.footer-tagline {
    color: var(--text-tertiary);
    font-size: 0.87rem;
    line-height: 1.5;
    margin: 0 0 var(--spacing-sm) 0;
}

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

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-section-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 var(--spacing-md) 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-sm) * 0.75);
}

.footer-links li {
    margin: 0;
}

.footer-links a {
    color: var(--text-tertiary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color var(--transition-fast);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--primary);
    transform: translateX(2px);
}

.footer-business {
    padding-top: var(--spacing-md);
}

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

.business-name {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 calc(var(--spacing-sm) * 0.75) 0;
}

.business-address {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin: 0 0 calc(var(--spacing-sm) * 0.75) 0;
    line-height: 1.5;
}

.business-details {
    font-size: 0.78rem;
    color: var(--text-tertiary);
    margin: 0;
    line-height: 1.6;
}

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

.footer-bottom p {
    color: var(--text-tertiary);
    margin: 0;
    font-size: 0.78rem;
}

@media (max-width: 768px) {
    .footer {
        padding: 1.5rem 1.1rem 1.1rem;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        margin-bottom: var(--spacing-md);
        padding-bottom: var(--spacing-md);
    }
    
    .footer-sections {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .footer-brand {
        text-align: center;
    }
    
    .footer-section {
        text-align: center;
    }
    
    .footer-links {
        align-items: center;
        gap: calc(var(--spacing-sm) * 0.6);
    }
    
    .business-info {
        text-align: center;
        gap: var(--spacing-xs);
    }
    
    .business-name {
        font-size: 0.82rem;
    }
    
    .business-address {
        font-size: 0.72rem;
    }
    
    .business-details {
        font-size: 0.7rem;
        line-height: 1.45;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: #FFFFFF;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(0, 180, 216, 0.3);
    z-index: 999;
}

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

.back-to-top:hover {
    background: var(--primary-light);
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(0, 180, 216, 0.4);
}

.back-to-top:active {
    transform: translateY(-2px);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 44px;
        height: 44px;
    }
    
    .back-to-top svg {
        width: 20px;
        height: 20px;
    }
}

/* Fade-in class */
.fade-in {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    }
    
    :root[data-theme="light"] .nav-menu {
        background: rgba(255, 255, 255, 0.95);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero {
        min-height: 78vh;
        padding: 7.4rem 1.75rem 2.6rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 1.25rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.25rem;
        text-wrap: balance;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-actions {
        justify-content: center;
        flex-direction: column;
        align-items: center;
    }
 
     .hero-actions .btn {
        width: min(240px, 100%);
     }

    .features, .screenshots, .about, .contact {
        padding: 2.5rem 1.5rem;
    }

    .section-header {
        margin-bottom: var(--spacing-lg);
    }

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

    .section-subtitle {
        font-size: 0.95rem;
    }

    .phone-mockup {
        width: 240px;
        height: 492px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .feature-card {
        padding: calc(var(--spacing-md) + 0.25rem);
    }

    .feature-card p {
        font-size: 0.9375rem;
        line-height: 1.6;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 1rem;
    }
    
    .hero {
        padding: 6.8rem 0.9rem 1.9rem;
    }
    
    .hero-title {
        font-size: 2.2rem;
        text-wrap: balance;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
    }
    
    .phone-mockup {
        width: 200px;
        height: 410px;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .features, .screenshots, .about, .contact {
        padding: 2rem 0.9rem;
    }

    .section-header {
        margin-bottom: var(--spacing-md);
    }

    .features-grid {
        gap: calc(var(--spacing-sm) * 0.9);
    }

    .feature-card {
        padding: calc(var(--spacing-md) - 0.25rem);
    }

    .feature-card h3 {
        font-size: 1.05rem;
    }

    .feature-card p {
        font-size: 0.875rem;
    }

    .footer {
        padding: 1.35rem 0.9rem 0.9rem;
    }

    .footer-main {
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-sm);
        padding-bottom: var(--spacing-sm);
    }

    .footer-sections {
        gap: var(--spacing-sm);
    }

    .footer-links {
        gap: calc(var(--spacing-sm) * 0.6);
    }

    .business-info {
        gap: var(--spacing-xs);
    }

    .business-name {
        font-size: 0.78rem;
    }

    .business-address {
        font-size: 0.7rem;
    }

    .business-details {
        font-size: 0.68rem;
    }
}