/* ============================================
   GSIT Homepage Styles
   來自主站 (ma) 設計系統
   ============================================ */

/* === 字體定義 === */
@font-face {
    font-family: 'Outfit';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../fonts/outfit-400.woff2') format('woff2');
}

@font-face {
    font-family: 'Outfit';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('../fonts/outfit-500.woff2') format('woff2');
}

@font-face {
    font-family: 'Outfit';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('../fonts/outfit-600.woff2') format('woff2');
}

@font-face {
    font-family: 'Outfit';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../fonts/outfit-700.woff2') format('woff2');
}

@font-face {
    font-family: 'Outfit';
    font-style: normal;
    font-weight: 800;
    font-display: swap;
    src: url('../fonts/outfit-800.woff2') format('woff2');
}

@font-face {
    font-family: 'IBM Plex Sans';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../fonts/ibm-plex-sans-400.woff2') format('woff2');
}

@font-face {
    font-family: 'IBM Plex Sans';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('../fonts/ibm-plex-sans-500.woff2') format('woff2');
}

@font-face {
    font-family: 'IBM Plex Sans';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('../fonts/ibm-plex-sans-600.woff2') format('woff2');
}

/* === GSIT 設計變數 === */

/* 覆蓋 .main 容器限制 (首頁需要全寬) */
.main:has(.gsit-hero) {
    max-width: none;
    padding: 0;
}

:root {
    --gsit-primary: #0066FF;
    --gsit-primary-dark: #0052CC;
    --gsit-primary-light: #3385FF;
    --gsit-primary-dim: rgba(0, 102, 255, 0.08);
    --gsit-primary-glow: rgba(0, 102, 255, 0.15);
    --gsit-accent: #00D9FF;
    --gsit-success: #10B981;
    --gsit-text-dark: #0F172A;
    --gsit-text-medium: #334155;
    --gsit-text-light: #64748B;
    --gsit-text-muted: #94A3B8;
    --gsit-bg-white: #FFFFFF;
    --gsit-bg-light: #F8FAFC;
    --gsit-bg-dark: #0F172A;
    --gsit-border: #E2E8F0;
    --gsit-shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.1);
    --gsit-shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.12);
    --gsit-shadow-glow: 0 0 60px rgba(0, 102, 255, 0.15);
    --gsit-gradient-primary: linear-gradient(135deg, #0066FF 0%, #00D9FF 100%);
    --gsit-gradient-dark: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);
    --gsit-gradient-hero: linear-gradient(180deg, #F8FAFC 0%, #EEF2FF 50%, #FFFFFF 100%);
    --gsit-cta-gradient: linear-gradient(135deg, #F59E0B 0%, #EA580C 100%);
    --gsit-cta-glow: rgba(245, 158, 11, 0.35);
    --gsit-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --gsit-radius-sm: 8px;
    --gsit-radius-md: 12px;
    --gsit-radius-lg: 16px;
    --gsit-radius-xl: 24px;
}

/* === Logo 圖片樣式 === */
.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-img {
    width: auto;
    height: 42px;
    object-fit: contain;
    transition: transform var(--gsit-transition);
}

.logo-img:hover {
    transform: scale(1.03);
}

/* === GSIT Container === */
.gsit-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

/* === Section Title === */
.gsit-section-title {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    letter-spacing: -0.02em;
    color: var(--gsit-text-dark);
}

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

@keyframes gsitHeroFloat {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    50% {
        transform: translate(2%, 3%) rotate(1deg);
    }
}

[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s var(--gsit-transition), transform 0.6s var(--gsit-transition);
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

/* === Hero Section === */
.gsit-hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding: 100px 0 120px;
    background: var(--gsit-gradient-hero);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.gsit-hero::before {
    content: '';
    position: absolute;
    top: -30%;
    left: -20%;
    width: 140%;
    height: 140%;
    background: radial-gradient(ellipse at 30% 20%, rgba(0, 102, 255, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(0, 217, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
    animation: gsitHeroFloat 20s ease-in-out infinite;
}

.gsit-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 102, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 102, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.5) 0%, transparent 70%);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.5) 0%, transparent 70%);
    pointer-events: none;
}

.gsit-hero .gsit-container {
    position: relative;
    z-index: 1;
}

.gsit-hero h1 {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: clamp(2.5rem, 6vw, 4.75rem);
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.08;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--gsit-text-dark) 0%, #1E40AF 50%, var(--gsit-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gsitFadeInUp 0.8s var(--gsit-transition) both;
}

.gsit-subtitle {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(1.25rem, 2.5vw, 1.625rem);
    color: var(--gsit-primary);
    margin-bottom: 32px;
    font-weight: 600;
    letter-spacing: -0.01em;
    animation: gsitFadeInUp 0.8s var(--gsit-transition) 0.1s both;
}

.gsit-hero-desc {
    font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: clamp(1.05rem, 1.5vw, 1.25rem);
    max-width: 750px;
    margin: 0 auto 48px;
    color: var(--gsit-text-light);
    line-height: 1.85;
    animation: gsitFadeInUp 0.8s var(--gsit-transition) 0.2s both;
}

/* === Hero Tags === */
.gsit-hero-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    max-width: 950px;
    margin: 0 auto;
    animation: gsitFadeInUp 0.8s var(--gsit-transition) 0.3s both;
}

.gsit-hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 28px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: var(--gsit-radius-lg);
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 16px;
    font-weight: 500;
    color: var(--gsit-text-medium);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
    transition: all var(--gsit-transition);
}

.gsit-hero-tag:hover {
    transform: translateY(-4px);
    background: #FFFFFF;
    box-shadow: 0 12px 40px rgba(0, 102, 255, 0.15);
    border-color: rgba(0, 102, 255, 0.2);
    color: var(--gsit-primary);
}

.gsit-hero-tag svg {
    width: 22px;
    height: 22px;
    color: var(--gsit-success);
    flex-shrink: 0;
}

/* === Features Section === */
.gsit-features {
    padding: 120px 0;
    background: var(--gsit-bg-white);
}

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

.gsit-feature-card {
    padding: 36px;
    background: var(--gsit-bg-white);
    border: 1px solid var(--gsit-border);
    border-radius: var(--gsit-radius-xl);
    transition: all var(--gsit-transition);
    position: relative;
    overflow: hidden;
}

.gsit-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gsit-gradient-primary);
    opacity: 0;
    transition: opacity var(--gsit-transition);
}

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

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

.gsit-feature-card-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.gsit-feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gsit-primary-dim);
    border-radius: var(--gsit-radius-lg);
    margin-bottom: 24px;
    color: var(--gsit-primary);
    transition: all var(--gsit-transition);
}

.gsit-feature-icon svg {
    width: 32px;
    height: 32px;
}

.gsit-feature-card:hover .gsit-feature-icon {
    background: var(--gsit-primary);
    color: #FFFFFF;
    transform: scale(1.1) rotate(-5deg);
}

.gsit-feature-card h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.375rem;
    margin-bottom: 8px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--gsit-text-dark);
}

.gsit-feature-stat {
    font-family: 'Outfit', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gsit-primary);
    margin-bottom: 12px;
}

.gsit-feature-card p {
    font-family: 'IBM Plex Sans', sans-serif;
    color: var(--gsit-text-light);
    font-size: 1rem;
    line-height: 1.7;
}

/* === Stats Section === */
.gsit-stats {
    padding: 120px 0;
    background: var(--gsit-gradient-dark);
    color: #FFFFFF;
    position: relative;
    overflow: hidden;
}

.gsit-stats::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 50%, rgba(0, 102, 255, 0.2), transparent 70%);
}

.gsit-stats .gsit-section-title {
    color: #FFFFFF;
}

.gsit-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
    position: relative;
    z-index: 1;
}

.gsit-stat-card {
    text-align: center;
    padding: 40px 32px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--gsit-radius-xl);
    backdrop-filter: blur(10px);
    transition: all var(--gsit-transition);
    position: relative;
    overflow: hidden;
}

.gsit-stat-card::before {
    content: '';
    position: absolute;
    top: -100%;
    left: -100%;
    width: 300%;
    height: 300%;
    background: var(--gsit-gradient-primary);
    opacity: 0;
    transition: opacity var(--gsit-transition);
    z-index: 0;
}

.gsit-stat-card:hover::before {
    opacity: 0.08;
}

.gsit-stat-card:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
}

.gsit-stat-card > * {
    position: relative;
    z-index: 1;
}

.gsit-stat-number {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(3rem, 5vw, 4rem);
    font-weight: 800;
    background: var(--gsit-gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    line-height: 1;
    letter-spacing: -0.03em;
}

.gsit-stat-label {
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 1rem;
    color: var(--gsit-text-muted);
    line-height: 1.6;
}

.gsit-stat-label strong {
    color: #FFFFFF;
    display: block;
    margin-top: 6px;
    font-weight: 600;
}

/* === Services Section === */
.gsit-services {
    padding: 120px 0;
    background: var(--gsit-bg-light);
}

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

.gsit-service-card {
    padding: 48px 36px;
    background: var(--gsit-bg-white);
    border: 1px solid var(--gsit-border);
    border-radius: var(--gsit-radius-xl);
    text-align: center;
    transition: all var(--gsit-transition);
}

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

.gsit-service-icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gsit-primary-dim);
    border-radius: var(--gsit-radius-lg);
    margin: 0 auto 28px;
    color: var(--gsit-primary);
    transition: all var(--gsit-transition);
}

.gsit-service-icon svg {
    width: 36px;
    height: 36px;
}

.gsit-service-card:hover .gsit-service-icon {
    background: var(--gsit-primary);
    color: #FFFFFF;
    transform: scale(1.1) rotate(-5deg);
}

.gsit-service-card h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.375rem;
    margin-bottom: 16px;
    font-weight: 600;
    color: var(--gsit-text-dark);
}

.gsit-service-card p {
    font-family: 'IBM Plex Sans', sans-serif;
    color: var(--gsit-text-light);
    font-size: 1rem;
    line-height: 1.7;
}

/* === Featured Products Section === */
.gsit-products {
    padding: 120px 0;
    background: var(--gsit-bg-white);
}

.gsit-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.gsit-product-card {
    padding: 36px;
    background: var(--gsit-bg-white);
    border: 1px solid var(--gsit-border);
    border-radius: var(--gsit-radius-xl);
    display: flex;
    flex-direction: column;
    transition: all var(--gsit-transition);
}

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

.gsit-product-card .product-name {
    font-family: 'Outfit', sans-serif;
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--gsit-text-dark);
}

.gsit-product-card .product-description {
    font-family: 'IBM Plex Sans', sans-serif;
    color: var(--gsit-text-light);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 24px;
    flex: 1;
}

.gsit-product-card .price-block {
    margin-bottom: 24px;
}

.gsit-product-card .price {
    font-family: 'Outfit', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--gsit-text-dark);
}

.gsit-product-card .price-info {
    font-size: 0.9rem;
    color: var(--gsit-text-muted);
}

/* === Responsive === */
@media (max-width: 1024px) {
    .gsit-feature-grid,
    .gsit-services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .gsit-hero {
        min-height: auto;
        padding: 70px 0 90px;
    }

    .gsit-hero-tags {
        flex-direction: column;
        align-items: center;
    }

    .gsit-hero-tag {
        width: 100%;
        max-width: 340px;
        justify-content: center;
    }

    .gsit-feature-grid,
    .gsit-services-grid,
    .gsit-stats-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .gsit-feature-card,
    .gsit-stat-card {
        padding: 32px;
    }

    .gsit-features,
    .gsit-stats,
    .gsit-services,
    .gsit-products {
        padding: 80px 0;
    }
}

@media (max-width: 480px) {
    .gsit-container {
        padding: 0 16px;
    }

    .gsit-hero h1 {
        font-size: 2.25rem;
    }

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