/* ============================================
   마중물 ESG 협동조합 - Main Stylesheet
   ============================================ */

/* ===== CSS Variables ===== */
:root {
    /* Primary Colors - Deep Emerald Green */
    --color-primary: #1F6F5C;
    --color-primary-light: #28917A;
    --color-primary-dark: #165445;
    --color-primary-50: rgba(31, 111, 92, 0.05);
    --color-primary-100: rgba(31, 111, 92, 0.1);

    /* Secondary Colors - Blue (Governance) */
    --color-secondary: #2C5F8A;
    --color-secondary-light: #3D7AB5;

    /* Accent Colors - Warm (Social) */
    --color-accent: #E67E22;
    --color-accent-light: #F39C12;

    /* ESG Specific */
    --color-env: #27AE60;
    --color-soc: #E67E22;
    --color-gov: #2980B9;

    /* Neutrals */
    --color-dark: #1A1A2E;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-lighter: #999999;
    --color-border: #E0E0E0;
    --color-bg: #FFFFFF;
    --color-bg-light: #F8FAF9;
    --color-bg-warm: #FFF9F2;

    /* Typography */
    --font-main: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --section-padding: 100px 0;
    --container-width: 1200px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-main);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.7;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

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

ul { list-style: none; }

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-family: var(--font-main);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-xl);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.btn i { font-size: 0.85rem; }

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(31, 111, 92, 0.35);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border-color: rgba(255,255,255,0.6);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.15);
    border-color: #fff;
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1.05rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
    padding: 16px;
    font-size: 1.05rem;
}

/* ===== Section Common ===== */
.section {
    padding: var(--section-padding);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 18px;
    background: var(--color-primary-50);
    color: var(--color-primary);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--radius-xl);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.section-tag i {
    font-size: 0.8rem;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    color: var(--color-dark);
    line-height: 1.3;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--color-text-light);
    line-height: 1.8;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all var(--transition-normal);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    padding: 10px 0;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0;
    z-index: 1001;
}

.nav-logo:hover {
    opacity: 0.85;
}

.logo-text {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.logo-main {
    display: flex;
    justify-content: center;
    height: 70px;
    line-height: 1;
    position: relative;
    margin-bottom: -12px;
}

.logo-main img {
    height: 100%;
    width: auto;
    object-fit: contain;
    transition: opacity var(--transition-normal);
}

/* Nav: 흰색 로고(기본) - CSS filter로 흰색 변환, ESG협동조합과 동일 톤 */
.logo-main .logo-img-white {
    display: none;
}

.logo-main .logo-img-dark {
    display: inline;
    filter: brightness(0) invert(1);
}

.navbar.scrolled .logo-main .logo-img-white {
    display: none;
}

.navbar.scrolled .logo-main .logo-img-dark {
    display: inline;
    filter: none;
}

/* 푸터는 항상 흰색 */
.footer-logo .logo-main .logo-img-white {
    display: none !important;
}

.footer-logo .logo-main .logo-img-dark {
    display: inline !important;
    filter: brightness(0) invert(1) !important;
}

.logo-sub {
    font-size: 1.05rem;
    font-weight: 600;
    color: #FFFFFF;
    letter-spacing: 1px;
    transition: color var(--transition-normal);
    margin-top: 0;
    line-height: 1;
    text-align: center;
}

.navbar.scrolled .logo-main {
    height: 50px;
}

.navbar.scrolled .logo-sub { color: var(--color-text-light); font-size: 0.85rem; }

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255,255,255,0.9);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #fff;
    background: rgba(255,255,255,0.15);
}

.navbar.scrolled .nav-link {
    color: var(--color-text);
}

.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-50);
}

/* Hamburger */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: #fff;
    position: relative;
    transition: all var(--transition-normal);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: #fff;
    transition: all var(--transition-normal);
}

.hamburger::before { top: -7px; }
.hamburger::after { bottom: -7px; }

.navbar.scrolled .hamburger,
.navbar.scrolled .hamburger::before,
.navbar.scrolled .hamburger::after {
    background: var(--color-dark);
}

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    bottom: 0;
    transform: rotate(-45deg);
}

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

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.05);
    animation: heroZoom 20s ease-in-out infinite alternate;
}

@keyframes heroZoom {
    0% { transform: scale(1.05); }
    100% { transform: scale(1.12); }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(10, 25, 20, 0.3) 0%,
        rgba(10, 25, 20, 0.15) 40%,
        rgba(10, 25, 20, 0.4) 100%
    );
}

.hero-content {
    text-align: center;
    color: #fff;
    padding-top: 80px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(31, 111, 92, 0.25);
    border: 1px solid rgba(40, 145, 122, 0.45);
    border-radius: var(--radius-xl);
    font-size: 0.85rem;
    font-weight: 500;
    color: #A8E6CF;
    margin-bottom: 28px;
    backdrop-filter: blur(4px);
}

.hero-badge i {
    color: var(--color-primary-light);
}

.hero h1 {
    font-size: clamp(2.2rem, 6vw, 3.8rem);
    font-weight: 900;
    line-height: 1.25;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero-highlight {
    color: var(--color-primary-light);
}

.hero-accent {
    background: linear-gradient(135deg, var(--color-primary-light), #5EEABD);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255,255,255,0.85);
    line-height: 1.8;
    max-width: 560px;
    margin: 0 auto 36px;
    font-weight: 300;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.15);
}

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

.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: #fff;
    display: inline;
}

.stat-suffix {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary-light);
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
    margin-top: 4px;
    font-weight: 400;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.2);
}

/* Hero Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.hero-scroll a {
    color: rgba(255,255,255,0.5);
    font-size: 1.2rem;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-8px); }
    60% { transform: translateX(-50%) translateY(-4px); }
}

/* ===== ABOUT SECTION ===== */
.about-section {
    background: var(--color-bg-light);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 60px;
}

.about-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.about-card-inner {
    padding: 40px 36px;
}

.about-icon-wrap {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 20px;
}

.about-meaning .about-icon-wrap {
    background: linear-gradient(135deg, rgba(31, 111, 92, 0.1), rgba(40, 145, 122, 0.15));
    color: var(--color-primary);
}

.about-esg-meaning .about-icon-wrap {
    background: linear-gradient(135deg, rgba(44, 95, 138, 0.1), rgba(41, 128, 185, 0.15));
    color: var(--color-secondary);
}

.about-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 14px;
}

.about-card p {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

.about-card em {
    color: var(--color-primary);
    font-style: normal;
    font-weight: 600;
}

.esg-mini-tags {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.esg-tag {
    padding: 6px 14px;
    border-radius: var(--radius-xl);
    font-size: 0.8rem;
    font-weight: 600;
}

.esg-tag.env { background: rgba(39, 174, 96, 0.12); color: var(--color-env); }
.esg-tag.soc { background: rgba(230, 126, 34, 0.12); color: var(--color-soc); }
.esg-tag.gov { background: rgba(41, 128, 185, 0.12); color: var(--color-gov); }

/* About Image Feature */
.about-image-feature {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.about-image-wrapper {
    height: 100%;
    min-height: 400px;
    overflow: hidden;
}

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

.about-image-feature:hover .about-image-wrapper img {
    transform: scale(1.05);
}

.about-feature-text {
    padding: 40px 40px 40px 0;
}

.about-feature-text h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 16px;
    line-height: 1.4;
}

.about-feature-text p {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 24px;
}

.feature-list {
    display: grid;
    gap: 12px;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--color-text);
    font-weight: 500;
}

.feature-list li i {
    color: var(--color-primary);
    font-size: 0.95rem;
}

/* ===== ESG SECTION ===== */
.esg-section {
    background: var(--color-bg);
}

.esg-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.esg-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.esg-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    transition: height var(--transition-normal);
}

.env-card::before { background: var(--color-env); }
.soc-card::before { background: var(--color-soc); }
.gov-card::before { background: var(--color-gov); }

.esg-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.esg-card:hover::before {
    height: 6px;
}

.esg-card-icon {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.esg-icon-circle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: #fff;
}

.env-bg { background: linear-gradient(135deg, #27AE60, #2ECC71); }
.soc-bg { background: linear-gradient(135deg, #E67E22, #F39C12); }
.gov-bg { background: linear-gradient(135deg, #2980B9, #3498DB); }

.esg-letter {
    font-size: 2rem;
    font-weight: 900;
    opacity: 0.15;
    color: var(--color-dark);
}

.esg-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 20px;
    line-height: 1.4;
}

.esg-card h3 span {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-light);
}

.esg-list {
    display: grid;
    gap: 12px;
}

.esg-list li {
    font-size: 0.9rem;
    color: var(--color-text-light);
    padding-left: 20px;
    position: relative;
    line-height: 1.6;
}

.esg-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.env-card .esg-list li::before { background: var(--color-env); }
.soc-card .esg-list li::before { background: var(--color-soc); }
.gov-card .esg-list li::before { background: var(--color-gov); }

/* ===== BUSINESS SECTION ===== */
.business-section {
    background: var(--color-bg-light);
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.business-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
    position: relative;
}

.business-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
}

.business-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--color-primary-50), rgba(31, 111, 92, 0.15));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: all var(--transition-normal);
}

.business-card:hover .business-icon {
    background: var(--color-primary);
    color: #fff;
    transform: scale(1.1);
}

.business-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 12px;
}

.business-card p {
    font-size: 0.88rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 16px;
}

.business-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-primary-50);
    color: var(--color-primary);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-xl);
}

/* ===== HOMECARE BANNER SECTION ===== */
/* ===== Visual Showcase Section ===== */
.visual-showcase-section {
    background: var(--color-bg-light);
    padding: 20px 0 40px;
    margin-top: -40px;
}

.visual-showcase-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

.visual-showcase-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.visual-showcase-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.12);
}

.visual-showcase-card img {
    width: 100%;
    height: 320px;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-slow);
}

.visual-showcase-card:hover img {
    transform: scale(1.04);
}

.visual-showcase-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 14px 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0) 100%);
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.visual-showcase-label i {
    margin-right: 6px;
}

@media (max-width: 768px) {
    .visual-showcase-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .visual-showcase-card img {
        height: 240px;
    }
}

/* ===== Homecare Section ===== */
.homecare-section {
    background: var(--color-bg);
    padding: 80px 0;
}

.homecare-banner {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    min-height: 500px;
}

.homecare-bg {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    transition: transform var(--transition-slow);
}

.homecare-banner:hover .homecare-bg {
    transform: scale(1.03);
}

.homecare-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 55%;
    height: 100%;
    background: linear-gradient(to right, rgba(255,255,255,0.92) 0%, rgba(255,255,255,0.85) 70%, rgba(255,255,255,0) 100%);
    z-index: 2;
}

.homecare-content {
    position: relative;
    z-index: 3;
    padding: 48px 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    max-width: 50%;
    min-height: 500px;
}

.homecare-content h2 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-dark);
    margin-bottom: 12px;
    line-height: 1.3;
    letter-spacing: -0.5px;
}

.homecare-desc {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 28px;
}

.homecare-list {
    display: grid;
    gap: 14px;
    margin-bottom: 32px;
}

.homecare-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.92rem;
    color: var(--color-text);
    line-height: 1.5;
    font-weight: 500;
}

.homecare-list li i {
    color: var(--color-primary);
    font-size: 0.95rem;
    margin-top: 3px;
    flex-shrink: 0;
}

@media (max-width: 1024px) {
    .homecare-overlay {
        width: 100%;
        background: rgba(255,255,255,0.88);
    }

    .homecare-content {
        max-width: 100%;
        min-height: auto;
        padding: 36px 28px;
    }

    .homecare-banner {
        min-height: 400px;
    }
}

@media (max-width: 768px) {
    .homecare-section {
        padding: 60px 0;
    }

    .homecare-content {
        padding: 32px 28px;
    }

    .homecare-content h2 {
        font-size: 1.4rem;
    }

    .homecare-image {
        min-height: 300px;
    }

    .homecare-list li {
        font-size: 0.85rem;
    }
}

/* ===== HISTORY / TIMELINE SECTION ===== */
.history-section {
    background: var(--color-bg);
    overflow: hidden;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 48px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 23px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-primary-light), var(--color-border));
}

/* Year Badge */
.timeline-year {
    position: relative;
    margin-bottom: 28px;
    margin-top: 8px;
}

.timeline-year:first-child {
    margin-top: 0;
}

.year-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 24px;
    background: var(--color-primary);
    color: #fff;
    font-size: 1.1rem;
    font-weight: 800;
    border-radius: var(--radius-xl);
    position: relative;
    left: -30px;
    letter-spacing: 1px;
    box-shadow: 0 4px 12px rgba(31, 111, 92, 0.3);
}

/* Timeline Item */
.timeline-item {
    position: relative;
    margin-bottom: 20px;
}

.timeline-dot {
    position: absolute;
    left: -37px;
    top: 18px;
    width: 28px;
    height: 28px;
    background: #fff;
    border: 2px solid var(--color-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    transition: all var(--transition-normal);
}

.timeline-dot i {
    font-size: 0.6rem;
    color: var(--color-primary);
    transition: color var(--transition-normal);
}

.timeline-item:hover .timeline-dot {
    background: var(--color-primary);
    border-color: var(--color-primary);
    transform: scale(1.15);
}

.timeline-item:hover .timeline-dot i {
    color: #fff;
}

/* Timeline Card */
.timeline-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 22px 26px;
    transition: all var(--transition-normal);
    position: relative;
}

.timeline-card::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 20px;
    width: 14px;
    height: 14px;
    background: #fff;
    border-left: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    transform: rotate(45deg);
    transition: border-color var(--transition-normal);
}

.timeline-item:hover .timeline-card {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.timeline-item:hover .timeline-card::before {
    border-color: var(--color-primary-light);
}

.timeline-card h4 {
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 6px;
    line-height: 1.4;
}

.timeline-card p {
    font-size: 0.88rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 0;
}

/* Timeline Tags */
.timeline-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: var(--radius-xl);
    font-size: 0.72rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: 0.3px;
}

.tag-urban {
    background: rgba(31, 111, 92, 0.1);
    color: var(--color-primary);
}

.tag-hvac {
    background: rgba(41, 128, 185, 0.1);
    color: var(--color-gov);
}

.tag-community {
    background: rgba(230, 126, 34, 0.1);
    color: var(--color-soc);
}

.tag-consulting {
    background: rgba(142, 68, 173, 0.1);
    color: #8E44AD;
}

/* Scale Badge */
.timeline-scale {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    padding: 4px 12px;
    background: var(--color-bg-light);
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-primary);
}

.timeline-scale i {
    font-size: 0.7rem;
}

/* Partners */
.timeline-partners {
    display: block;
    margin-top: 6px;
    font-size: 0.8rem;
    color: var(--color-text-lighter);
    line-height: 1.6;
    font-style: italic;
}

/* Timeline Responsive */
@media (max-width: 768px) {
    .timeline {
        padding-left: 36px;
    }

    .timeline::before {
        left: 15px;
    }

    .timeline-dot {
        left: -29px;
        width: 24px;
        height: 24px;
    }

    .timeline-dot i {
        font-size: 0.5rem;
    }

    .year-badge {
        left: -22px;
        font-size: 0.95rem;
        padding: 6px 20px;
    }

    .timeline-card {
        padding: 18px 20px;
    }

    .timeline-card h4 {
        font-size: 0.95rem;
    }
}

/* ===== QUALIFICATIONS SECTION ===== */
.qualifications-section {
    background: var(--color-bg);
}

.qual-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.qual-block {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    border: 1px solid var(--color-border);
    transition: box-shadow var(--transition-normal);
}

.qual-block:hover {
    box-shadow: var(--shadow-md);
}

.qual-block-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--color-primary-100);
}

.qual-block-header i {
    font-size: 1.4rem;
    color: var(--color-primary);
}

.qual-block-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-dark);
}

.qual-items {
    display: grid;
    gap: 14px;
}

.qual-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--color-bg-light);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.qual-item:hover {
    background: var(--color-primary-50);
    transform: translateX(4px);
}

.qual-item i {
    color: var(--color-primary);
    font-size: 0.85rem;
}

.qual-item span {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
}

.qual-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.qual-tag {
    display: inline-block;
    padding: 10px 18px;
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.qual-tag:hover {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.qual-tag-more {
    display: inline-flex;
    align-items: center;
    padding: 10px 18px;
    background: var(--color-primary-50);
    border-radius: var(--radius-xl);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-primary);
}

/* ===== BLOG / INSIGHT SECTION ===== */
.blog-section {
    background: var(--color-bg-light);
}

.blog-featured-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.blog-featured-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.blog-featured-image {
    position: relative;
    overflow: hidden;
    min-height: 350px;
}

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

.blog-featured-card:hover .blog-featured-image img {
    transform: scale(1.05);
}

.blog-category {
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 6px 16px;
    background: var(--color-primary);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: var(--radius-xl);
}

.blog-featured-content {
    padding: 44px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.blog-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 16px;
}

.blog-meta span {
    font-size: 0.82rem;
    color: var(--color-text-lighter);
    display: flex;
    align-items: center;
    gap: 6px;
}

.blog-featured-content h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-dark);
    line-height: 1.5;
    margin-bottom: 16px;
}

.blog-featured-content p {
    font-size: 0.92rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 24px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-read-more {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: gap var(--transition-fast);
}

.blog-featured-card:hover .blog-read-more {
    gap: 14px;
}

/* ===== CTA SECTION ===== */
.cta-section {
    position: relative;
    padding: 120px 0;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

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

.cta-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 25, 20, 0.8), rgba(31, 111, 92, 0.75));
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: #fff;
}

.cta-content h2 {
    font-size: clamp(1.8rem, 4vw, 2.4rem);
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.cta-content p {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.85);
    line-height: 1.8;
    margin-bottom: 36px;
    font-weight: 300;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* ===== CONTACT SECTION ===== */
.contact-section {
    background: var(--color-bg);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: start;
}

.contact-info-card {
    background: var(--color-bg-light);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 24px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 0;
}

.contact-item + .contact-item {
    border-top: 1px solid var(--color-border);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1rem;
    flex-shrink: 0;
}

.contact-detail h4 {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-lighter);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.contact-detail a,
.contact-detail span {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-dark);
}

.contact-detail a:hover {
    color: var(--color-primary);
}

.contact-cta-box {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 28px 32px;
}

.contact-cta-box h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.contact-cta-box p {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.85);
    line-height: 1.7;
}

/* Contact Form */
.contact-form {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 40px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.form-group label i {
    color: var(--color-primary);
    font-size: 0.8rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font-main);
    font-size: 0.92rem;
    color: var(--color-text);
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    background: #fff;
    box-shadow: 0 0 0 3px var(--color-primary-100);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-lighter);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--color-dark);
    color: rgba(255,255,255,0.7);
    padding-top: 60px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-logo .logo-sub { color: #FFFFFF; }

.footer-desc {
    font-size: 0.88rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.5);
}

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

.footer-link-group h4 {
    font-size: 0.9rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

.footer-link-group ul {
    display: grid;
    gap: 10px;
}

.footer-link-group li {
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-link-group li i {
    font-size: 0.75rem;
    color: var(--color-primary-light);
}

.footer-link-group a {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.35);
}

.footer-certifications {
    margin-top: 8px;
    font-size: 0.78rem !important;
    color: rgba(255,255,255,0.25) !important;
}

/* ===== BACK TO TOP ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

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

.back-to-top:hover {
    background: var(--color-primary-dark);
    transform: translateY(-4px);
}

/* ===== FORM SUCCESS MODAL ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 48px;
    text-align: center;
    max-width: 420px;
    width: 90%;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

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

.modal-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    color: #fff;
}

.modal-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 10px;
}

.modal-content p {
    font-size: 0.92rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 24px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .esg-cards {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .business-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-image-feature {
        grid-template-columns: 1fr;
    }

    .about-image-wrapper {
        min-height: 280px;
    }

    .about-feature-text {
        padding: 32px;
    }

    .blog-featured-card {
        grid-template-columns: 1fr;
    }

    .blog-featured-image {
        min-height: 250px;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 70px 0;
    }

    /* Navigation */
    .nav-toggle {
        display: block;
    }

    .logo-main {
        height: 50px;
    }

    .logo-sub {
        font-size: 0.85rem;
    }

    .navbar.scrolled .logo-main {
        height: 40px;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: #fff;
        flex-direction: column;
        padding: 80px 24px 24px;
        gap: 4px;
        transition: right var(--transition-normal);
        box-shadow: var(--shadow-xl);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        color: var(--color-text) !important;
        width: 100%;
        padding: 12px 16px;
    }

    .nav-link:hover,
    .nav-link.active {
        color: var(--color-primary) !important;
        background: var(--color-primary-50) !important;
    }

    /* Hero */
    .hero-content {
        padding-top: 60px;
    }

    .hero-stats {
        gap: 24px;
        flex-wrap: wrap;
    }

    .stat-divider {
        display: none;
    }

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

    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    /* About */
    .about-grid {
        grid-template-columns: 1fr;
    }

    /* Business */
    .business-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    /* Qualifications */
    .qual-grid {
        grid-template-columns: 1fr;
    }

    /* Contact */
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 28px 24px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    /* Footer */
    .footer-links {
        grid-template-columns: 1fr 1fr;
    }

    /* Blog */
    .blog-featured-content {
        padding: 28px 24px;
    }

    /* CTA */
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .cta-actions .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .stat-number {
        font-size: 1.6rem;
    }

    .hero-stats {
        gap: 20px;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .about-card-inner {
        padding: 28px 24px;
    }

    .esg-card {
        padding: 28px 24px;
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    .navbar, .hero-scroll, .back-to-top, .cta-section {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: 40px 0;
    }

    .section {
        padding: 30px 0;
    }
}