/* ================================================================
   Layout Styles - 花莊/聚美綠能 Corporate Website
   ================================================================ */

/* -------------------------
   Grid System
   ------------------------- */
.grid {
    display: grid;
    gap: var(--space-6);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* -------------------------
   Flexbox Utilities
   ------------------------- */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.flex-wrap {
    flex-wrap: wrap;
}

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

.items-start {
    align-items: flex-start;
}

.items-end {
    align-items: flex-end;
}

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

.justify-between {
    justify-content: space-between;
}

.justify-around {
    justify-content: space-around;
}

.gap-4 {
    gap: var(--space-4);
}

.gap-6 {
    gap: var(--space-6);
}

.gap-8 {
    gap: var(--space-8);
}

/* -------------------------
   Hero Section
   ------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(27, 67, 50, 0.9) 0%,
            rgba(45, 106, 79, 0.8) 50%,
            rgba(64, 145, 108, 0.7) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--color-white);
    max-width: 900px;
    padding: var(--space-8);
}

.hero-tagline {
    font-size: var(--text-lg);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-bottom: var(--space-4);
}

.hero-title {
    font-size: var(--text-6xl);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--space-6);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: var(--text-xl);
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 0 auto var(--space-8);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-white);
    opacity: 0.8;
    animation: float 2s ease-in-out infinite;
}

.hero-scroll-icon {
    width: 24px;
    height: 40px;
    border: 2px solid var(--color-white);
    border-radius: 12px;
    position: relative;
}

.hero-scroll-icon::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background-color: var(--color-white);
    border-radius: 2px;
    animation: scrollDown 1.5s ease-in-out infinite;
}

@keyframes scrollDown {

    0%,
    100% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }

    50% {
        opacity: 0.5;
        transform: translateX(-50%) translateY(10px);
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: var(--text-4xl);
    }

    .hero-subtitle {
        font-size: var(--text-lg);
    }
}

/* -------------------------
   Feature Grid
   ------------------------- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.feature-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid transparent;
}

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

.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto var(--space-6);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    border-radius: var(--radius-lg);
    color: var(--color-white);
    font-size: 32px;
}

.feature-title {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--color-gray-900);
}

.feature-text {
    color: var(--color-gray-600);
    font-size: var(--text-base);
    line-height: 1.6;
}

@media (max-width: 1024px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

/* -------------------------
   Project Showcase
   ------------------------- */
.project-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.project-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
}

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

.project-card:hover .project-card-image {
    transform: scale(1.1);
}

.project-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top,
            rgba(27, 67, 50, 0.95) 0%,
            rgba(27, 67, 50, 0.5) 50%,
            transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--space-6);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.project-card:hover .project-card-overlay {
    opacity: 1;
}

.project-card-year {
    font-size: var(--text-sm);
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.project-card-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-2);
}

.project-card-desc {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.8);
}

@media (max-width: 1024px) {
    .project-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .project-grid {
        grid-template-columns: 1fr;
    }
}

/* -------------------------
   Stats Section
   ------------------------- */
.stats-section {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    padding: var(--space-16) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
}

.stat-item {
    text-align: center;
    color: var(--color-white);
}

.stat-number {
    font-size: var(--text-5xl);
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--space-2);
    color: var(--color-accent);
}

.stat-label {
    font-size: var(--text-base);
    color: rgba(255, 255, 255, 0.9);
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-10);
    }

    .stat-number {
        font-size: var(--text-4xl);
    }
}

/* -------------------------
   Split Content
   ------------------------- */
.split-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.split-content.reverse {
    direction: rtl;
}

.split-content.reverse>* {
    direction: ltr;
}

.split-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.split-image img {
    width: 100%;
    height: auto;
}

.split-image::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100px;
    height: 100px;
    background: var(--color-accent);
    border-radius: var(--radius-full);
    opacity: 0.3;
    z-index: -1;
}

.split-body {
    padding: var(--space-4);
}

.split-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: var(--color-gray-900);
}

.split-text {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
    line-height: 1.8;
    margin-bottom: var(--space-6);
}

.split-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.split-list-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    font-size: var(--text-base);
    color: var(--color-gray-700);
}

.split-list-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-size: 12px;
}

@media (max-width: 1024px) {
    .split-content {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .split-content.reverse {
        direction: ltr;
    }
}

/* -------------------------
   CTA Section
   ------------------------- */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    padding: var(--space-20) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: var(--color-accent);
    border-radius: 50%;
    opacity: 0.1;
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 300px;
    height: 300px;
    background: var(--color-white);
    border-radius: 50%;
    opacity: 0.05;
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--space-4);
}

.cta-text {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-8);
}

/* -------------------------
   Page Header
   ------------------------- */
.page-header {
    padding: calc(var(--space-24) + 80px) 0 var(--space-16);
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    text-align: center;
    color: var(--color-white);
}

.page-header-title {
    font-size: var(--text-5xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: var(--color-white);
}

.page-header-subtitle {
    font-size: var(--text-xl);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto;
}

/* -------------------------
   Timeline
   ------------------------- */
.timeline {
    position: relative;
    padding-left: var(--space-10);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-primary), var(--color-accent));
}

.timeline-item {
    position: relative;
    padding-bottom: var(--space-10);
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: calc(-1 * var(--space-10) - 6px);
    top: 0;
    width: 14px;
    height: 14px;
    background-color: var(--color-primary);
    border: 3px solid var(--color-white);
    border-radius: 50%;
    box-shadow: var(--shadow-md);
}

.timeline-year {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-2);
}

.timeline-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--space-2);
}

.timeline-text {
    color: var(--color-gray-600);
    font-size: var(--text-base);
}