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

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    width: 100%;
    height: 100svh;
    min-height: 600px;
    overflow: hidden;
    background: var(--color-black);
}

.hero-video-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* 縦動画対応: デスクトップでは中央配置でアスペクト比を保持 */
@media (min-width: 769px) {
    .hero-video-wrapper {
        display: flex;
        align-items: center;
        justify-content: center;
        background: var(--color-black);
    }
    
    .hero-video {
        width: auto;
        height: 100%;
        max-width: 100%;
        object-fit: contain;
    }
}

/* スマホでは縦動画を全画面表示 */
@media (max-width: 768px) {
    .hero-video {
        object-fit: cover;
        object-position: center center;
    }
    
    .hero-video-wrapper {
        display: flex;
        align-items: center;
        justify-content: center;
        background: var(--color-black);
    }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0) 0%,
        rgba(0, 0, 0, 0) 50%,
        rgba(0, 0, 0, 0.4) 80%,
        rgba(0, 0, 0, 0.7) 100%
    );
    pointer-events: none;
}

.hero-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 0 clamp(24px, 6vw, 80px);
    padding-bottom: clamp(100px, 15vh, 160px);
    z-index: 2;
}

.hero-text {
    max-width: 600px;
}

.hero-title {
    font-family: var(--font-mono);
    font-size: clamp(1rem, 3vw, 1.375rem);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: clamp(24px, 4vh, 48px);
    right: clamp(24px, 6vw, 80px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 2;
}

.scroll-text {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    writing-mode: vertical-rl;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(
        to bottom,
        rgba(255, 255, 255, 0.6) 0%,
        rgba(255, 255, 255, 0) 100%
    );
    animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
    0%, 100% {
        opacity: 1;
        transform: scaleY(1);
    }
    50% {
        opacity: 0.5;
        transform: scaleY(0.8);
    }
}

/* Hero Responsive */
@media (max-width: 768px) {
    .hero {
        height: 100svh;
        min-height: 500px;
    }
    
    .hero-content {
        padding-bottom: clamp(80px, 12vh, 120px);
    }
    
    .hero-scroll-indicator {
        right: 16px;
        bottom: 20px;
    }
    
    .scroll-line {
        height: 30px;
    }
}

@media (max-width: 480px) {
    .hero-name {
        letter-spacing: 0.05em;
    }
}

:root {
    /* Color Palette - Monochrome */
    --color-black: #000000;
    --color-white: #ffffff;
    --color-gray-50: #fafafa;
    --color-gray-100: #f5f5f5;
    --color-gray-200: #e5e5e5;
    --color-gray-300: #d4d4d4;
    --color-gray-400: #a3a3a3;
    --color-gray-500: #737373;
    --color-gray-600: #525252;
    --color-gray-700: #404040;
    --color-gray-800: #262626;
    --color-gray-900: #171717;

    /* Typography */
    --font-mono: 'IBM Plex Mono', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* 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: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

body {
    font-family: var(--font-sans);
    background: var(--color-white);
    color: var(--color-gray-900);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* ===================================
   Wave Background Animation
   =================================== */
.wave-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 180px;
    z-index: 0;
    overflow: hidden;
}

.wave {
    width: 100%;
    height: 100%;
}

.wave-path {
    fill: var(--color-gray-100);
    animation: wave-animation 8s ease-in-out infinite;
}

@keyframes wave-animation {
    0%, 100% {
        d: path("M0,50 Q300,100 600,50 T1200,50 L1200,0 L0,0 Z");
    }
    50% {
        d: path("M0,80 Q300,20 600,80 T1200,80 L1200,0 L0,0 Z");
    }
}

/* ===================================
   Main Container
   =================================== */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

/* ===================================
   Header Section
   =================================== */
.header {
    padding: var(--spacing-2xl) 0 var(--spacing-xl);
    text-align: center;
}

.code-line {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.01em;
}

.code-comment {
    color: var(--color-gray-500);
}

.name {
    font-family: var(--font-mono);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 500;
    line-height: 1.4;
    margin: var(--spacing-md) 0;
    color: var(--color-gray-900);
}

.name-content {
    display: block;
    margin: var(--spacing-xs) 0;
    text-align: center;
}

.code-keyword {
    color: var(--color-gray-700);
    font-weight: 600;
}

.code-property {
    color: var(--color-gray-600);
}

.code-string {
    color: var(--color-black);
    font-weight: 600;
}

.code-brace {
    color: var(--color-gray-500);
}

.subtitle-helper {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-gray-800);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.02em;
}

.tagline {
    font-size: 1rem;
    color: var(--color-gray-600);
    margin-top: var(--spacing-md);
    line-height: 1.6;
}

.location-icon {
    margin-right: var(--spacing-xs);
}

.separator {
    margin: 0 var(--spacing-xs);
    color: var(--color-gray-400);
}

/* ===================================
   Video Trigger Button Section
   =================================== */
.video-trigger-section {
    margin: var(--spacing-2xl) 0;
    display: flex;
    flex-direction: column !important;
    align-items: center;
    gap: var(--spacing-lg);
    width: 100%;
}

.video-intro {
    text-align: center;
    max-width: 700px;
    margin-bottom: var(--spacing-md);
    width: 100%;
}

.video-title {
    font-family: var(--font-sans);
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    color: var(--color-gray-900);
    margin: var(--spacing-md) 0;
    line-height: 1.3;
}

.video-description {
    font-size: 1rem;
    color: var(--color-gray-600);
    line-height: 1.8;
    margin-top: var(--spacing-sm);
}

.video-trigger-btn {
    position: relative;
    background: var(--color-black);
    color: var(--color-white);
    border: 2px solid var(--color-black);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg) var(--spacing-xl);
    font-family: var(--font-mono);
    cursor: pointer;
    transition: all var(--transition-base);
    overflow: hidden;
    max-width: 600px;
    width: 100%;
}

.video-trigger-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.video-trigger-btn:hover::before {
    left: 100%;
}

.video-trigger-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    border-color: var(--color-gray-700);
}

.btn-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.function-call {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.play-icon {
    font-size: 1.5rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.1);
    }
}

.btn-comment {
    font-size: 0.875rem;
    color: var(--color-gray-400);
    text-align: left;
}

/* ===================================
   Video Modal
   =================================== */
.video-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.video-modal.active {
    display: flex;
    opacity: 1;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    z-index: 10000;
    max-width: 90%;
    max-height: 90vh;
    width: 900px;
    transform: scale(0.8);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.video-modal.active .modal-content {
    transform: scale(1);
    opacity: 1;
}

.modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: transparent;
    border: none;
    color: var(--color-white);
    font-family: var(--font-mono);
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    color: var(--color-gray-300);
    transform: scale(1.1);
}

.close-icon {
    font-size: 1.5rem;
}

.close-text {
    font-size: 0.75rem;
    padding: 2px 6px;
    border: 1px solid var(--color-gray-500);
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.1);
}

.modal-video-container {
    position: relative;
    background: var(--color-black);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 2px solid var(--color-gray-700);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-video {
    width: 100%;
    height: auto;
    display: block;
}

.modal-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-white);
    text-align: center;
    pointer-events: none;
}

/* ===================================
   Bookmark Guide Modal
   =================================== */
.bookmark-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.bookmark-modal.active {
    display: flex;
    opacity: 1;
}

.bookmark-modal-content {
    position: relative;
    z-index: 10001;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    max-width: 90%;
    width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transform: scale(0.9);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.bookmark-modal.active .bookmark-modal-content {
    transform: scale(1);
    opacity: 1;
}

.bookmark-modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--color-gray-500);
    cursor: pointer;
    padding: var(--spacing-xs);
    line-height: 1;
    transition: all var(--transition-fast);
    z-index: 10;
}

.bookmark-modal-close:hover {
    color: var(--color-black);
    transform: rotate(90deg);
}

.bookmark-guide {
    padding: var(--spacing-2xl);
}

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

.guide-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: var(--spacing-md);
}

.guide-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin: 0;
}

.guide-section {
    margin-bottom: var(--spacing-xl);
}

.guide-subtitle {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-gray-800);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.device-icon {
    font-size: 1.25rem;
}

.guide-steps {
    list-style: none;
    padding: 0;
    margin: 0;
}

.guide-steps li {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-gray-200);
}

.step-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: var(--color-black);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
}

.step-content {
    flex: 1;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-gray-800);
}

.step-content strong {
    color: var(--color-black);
    font-weight: 600;
}

.step-icon {
    margin-top: var(--spacing-xs);
    font-size: 1.5rem;
    color: var(--color-gray-600);
}

.guide-divider {
    height: 1px;
    background: var(--color-gray-200);
    margin: var(--spacing-xl) 0;
}

.guide-close-btn {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-black);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    margin-top: var(--spacing-lg);
}

.guide-close-btn:hover {
    background: var(--color-gray-800);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* ===================================
   Sections
   =================================== */
.section-title {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-md);
}

/* Services Section */
.services {
    margin: var(--spacing-2xl) 0;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.service-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    min-height: 240px;
}

.service-card:hover {
    border-color: var(--color-gray-400);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transform: translateY(-2px);
}

.service-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.code-icon {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--color-gray-800);
    letter-spacing: 0.05em;
}

.service-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-gray-900);
}

.service-card p {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    line-height: 1.6;
}

.card-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.featured-card {
    background: var(--color-white);
    border: 2px solid var(--color-gray-400);
    position: relative;
    animation: subtle-pulse 4s ease-in-out infinite;
}

.featured-card .code-icon {
    font-size: 3rem;
    color: var(--color-gray-900);
}

.featured-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
}

.featured-card:hover {
    border-color: var(--color-gray-600);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    animation-play-state: paused;
}

@keyframes subtle-pulse {
    0%, 100% {
        background-color: var(--color-white);
    }
    50% {
        background-color: var(--color-gray-100);
    }
}

.featured-tagline {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-gray-900);
    margin: var(--spacing-sm) 0;
    line-height: 1.5;
}

.featured-subtitle {
    font-size: 0.9375rem;
    color: var(--color-gray-700);
    margin: var(--spacing-xs) 0;
    line-height: 1.6;
}

.featured-description {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    margin-top: var(--spacing-sm);
    line-height: 1.6;
}

/* Tech Stack Section */
.tech-stack {
    margin: var(--spacing-2xl) 0;
}

.tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.tech-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-gray-100);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-800);
    transition: all var(--transition-fast);
}

.tech-badge:hover {
    background: var(--color-gray-900);
    color: var(--color-white);
    border-color: var(--color-gray-900);
}

/* Service Area Section */
.service-area {
    margin: var(--spacing-2xl) 0;
}

.area-info {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.area-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1rem;
    color: var(--color-gray-800);
    font-weight: 500;
}

.area-icon {
    font-size: 1.5rem;
}

.code-symbol {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--color-gray-700);
}

/* ===================================
   CTA Section
   =================================== */
.cta-section {
    margin: var(--spacing-2xl) 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-lg);
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    width: 100%;
}

.btn-icon {
    font-size: 1.25rem;
}

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

.btn-primary:hover {
    background: var(--color-gray-800);
    border-color: var(--color-gray-800);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-black);
    border-color: var(--color-gray-300);
}

.btn-secondary:hover {
    background: var(--color-gray-100);
    border-color: var(--color-gray-400);
    transform: translateY(-2px);
}

.btn-line {
    background: #06C755;
    color: var(--color-white);
    border-color: #06C755;
    font-weight: 700;
}

.btn-line:hover {
    background: #05B34D;
    border-color: #05B34D;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(6, 199, 85, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--color-gray-700);
    border-color: var(--color-gray-300);
}

.btn-outline:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gray-400);
}

/* ===================================
   Footer
   =================================== */
.footer {
    margin: var(--spacing-2xl) 0 var(--spacing-lg);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-gray-200);
    text-align: center;
}

.footer-text {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    margin-top: var(--spacing-sm);
}

.email-link {
    color: var(--color-gray-500);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.email-link:hover {
    color: var(--color-black);
    text-decoration: underline;
}

/* ===================================
   Detail Page Styles
   =================================== */
.detail-page {
    max-width: 800px;
}

.back-nav, .bottom-nav {
    margin: var(--spacing-lg) 0;
}

.back-link {
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.back-link:hover {
    color: var(--color-black);
}

.detail-header {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.detail-title {
    font-family: var(--font-mono);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 500;
    line-height: 1.4;
    margin: var(--spacing-md) 0;
    color: var(--color-gray-900);
}

.service-description {
    display: block;
    margin: var(--spacing-sm) 0;
    text-align: center;
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--color-gray-700);
}

.features-section {
    margin: var(--spacing-2xl) 0;
}

.features-list {
    list-style: none;
    margin-top: var(--spacing-lg);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    font-size: 1.0625rem;
    color: var(--color-gray-800);
    border-bottom: 1px solid var(--color-gray-200);
}

.feature-item:last-child {
    border-bottom: none;
}

.check-mark {
    font-size: 1.5rem;
    color: var(--color-gray-700);
    flex-shrink: 0;
}

.tagline-section {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    text-align: center;
}

.detail-tagline {
    font-size: 1rem;
    color: var(--color-gray-800);
    line-height: 1.8;
    margin: var(--spacing-xs) 0;
}

.detail-subtitle {
    font-size: 1rem;
    color: var(--color-gray-600);
    margin-top: var(--spacing-md);
    text-align: center;
    font-style: italic;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md);
    }

    .header {
        padding: var(--spacing-xl) 0 var(--spacing-lg);
    }

    .name {
        font-size: 1.25rem;
    }

    .tagline {
        font-size: 0.9375rem;
    }

    .video-trigger-section {
        margin: var(--spacing-lg) 0;
    }

    .video-trigger-btn {
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .function-call {
        font-size: 1rem;
    }

    .play-icon {
        font-size: 1.25rem;
    }

    .btn-comment {
        font-size: 0.75rem;
    }

    .modal-content {
        max-width: 95%;
    }

    .modal-close {
        top: -35px;
        font-size: 0.875rem;
    }

    .close-text {
        display: none;
    }

    .modal-caption {
        font-size: 0.75rem;
        padding: var(--spacing-xs);
    }

    .service-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .tech-list {
        justify-content: center;
    }

    .cta-section {
        gap: var(--spacing-sm);
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9375rem;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-2xl: 2.5rem;
    }

    .wave-container {
        height: 120px;
    }

    .name-content {
        font-size: 0.9rem;
    }

    .bookmark-guide {
        padding: var(--spacing-lg);
    }

    .guide-icon {
        font-size: 2.5rem;
    }

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

    .guide-subtitle {
        font-size: 1rem;
    }

    .step-content {
        font-size: 0.9375rem;
    }

    .guide-close-btn {
        font-size: 1rem;
    }
}

/* ===================================
   Animations & Interactions
   =================================== */
@media (prefers-reduced-motion: no-preference) {
    .service-card,
    .tech-badge,
    .btn {
        transition-property: transform, background-color, border-color, box-shadow, color;
    }
}

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

/* ===================================
   Print Styles
   =================================== */
@media print {
    .wave-container,
    .cta-section {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .container {
        max-width: 100%;
    }
}