/* ========================================
   CalGas Energy - Main Stylesheet
   Corporate Hydrogen Aesthetic
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    /* Primary Palette - from logo */
    --navy-deep: #0a2540;
    --navy: #143963;
    --navy-light: #1e5089;
    --hydrogen-green: #15a572;
    --hydrogen-green-light: #2fc48f;
    --hydrogen-green-dark: #0e7a54;
    --accent-cyan: #4fd1c5;

    /* Neutrals */
    --white: #ffffff;
    --cream: #fafbfc;
    --gray-50: #f5f7fa;
    --gray-100: #e5eaf0;
    --gray-200: #d1d9e1;
    --gray-400: #8a96a4;
    --gray-600: #4a5764;
    --gray-800: #2c3540;
    --black: #0d141d;

    /* Typography */
    --font-display: 'Syne', 'Helvetica Neue', sans-serif;
    --font-body: 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Spacing */
    --container: 1280px;
    --container-wide: 1440px;

    /* Transitions */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--white);
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s var(--ease);
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--navy-deep);
}

h1 { font-size: clamp(2.5rem, 5.5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.25rem); }
h3 { font-size: clamp(1.5rem, 2.5vw, 2rem); }
h4 { font-size: 1.25rem; }

.eyebrow {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--hydrogen-green);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.eyebrow::before {
    content: '';
    width: 28px;
    height: 1px;
    background: var(--hydrogen-green);
}

.lead {
    font-size: 1.15rem;
    color: var(--gray-600);
    line-height: 1.7;
    max-width: 680px;
}

/* ========================================
   LAYOUT
   ======================================== */

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 2rem;
}

.container-wide {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 6rem 0;
    position: relative;
}

.section-dark {
    background: var(--navy-deep);
    color: var(--white);
}

.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 {
    color: var(--white);
}

.section-cream {
    background: var(--cream);
}

/* ========================================
   NAVIGATION
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(10, 37, 64, 0.08);
    transition: all 0.4s var(--ease);
}

.navbar.scrolled {
    padding: 0.75rem 0;
    box-shadow: 0 4px 30px rgba(10, 37, 64, 0.06);
}

.nav-container {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.35rem;
    color: var(--navy-deep);
}

.nav-brand img {
    height: 44px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    list-style: none;
}

.nav-menu a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-800);
    position: relative;
    padding: 0.25rem 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--hydrogen-green);
    transition: width 0.3s var(--ease);
}

.nav-menu a:hover {
    color: var(--navy-deep);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-menu a.active {
    color: var(--navy-deep);
}

.nav-cta {
    background: var(--navy-deep);
    color: var(--white) !important;
    padding: 0.7rem 1.4rem !important;
    border-radius: 2px;
    font-weight: 500;
    transition: all 0.3s var(--ease) !important;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    background: var(--hydrogen-green);
    transform: translateY(-1px);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--navy-deep);
    margin: 5px 0;
    transition: all 0.3s var(--ease);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ========================================
   HERO
   ======================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #061a30 0%, #0a2540 60%, #143963 100%);
    color: var(--white);
}

.hero-bg {
    position: absolute;
    inset: 0;
    opacity: 0.4;
    pointer-events: none;
}

.hero-bg svg {
    width: 100%;
    height: 100%;
}

.hero-grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(21, 165, 114, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(21, 165, 114, 0.06) 1px, transparent 1px);
    background-size: 80px 80px;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero h1 {
    color: var(--white);
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -0.035em;
}

.hero h1 .accent {
    display: block;
    color: var(--hydrogen-green-light);
    font-style: italic;
    font-weight: 500;
}

.hero-tagline {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 2.5rem;
    max-width: 560px;
    line-height: 1.7;
}

.hero-eyebrow {
    color: var(--hydrogen-green-light);
}

.hero-eyebrow::before {
    background: var(--hydrogen-green-light);
}

.hero-cta-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    padding: 1rem 2rem;
    border-radius: 2px;
    font-size: 0.95rem;
    font-weight: 500;
    font-family: var(--font-body);
    cursor: pointer;
    border: none;
    transition: all 0.3s var(--ease);
    letter-spacing: 0.01em;
}

.btn-primary {
    background: var(--hydrogen-green);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--hydrogen-green-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(21, 165, 114, 0.35);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--white);
}

.btn-arrow {
    display: inline-block;
    transition: transform 0.3s var(--ease);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    padding-top: 2.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--hydrogen-green-light);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 520px;
}

.molecule-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.molecule-container svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 20px 60px rgba(21, 165, 114, 0.3));
}

.molecule-orbit {
    animation: orbit 40s linear infinite;
    transform-origin: center;
}

.molecule-orbit-reverse {
    animation: orbit 30s linear infinite reverse;
    transform-origin: center;
}

@keyframes orbit {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.molecule-pulse {
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    color: rgba(255, 255, 255, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(180deg, transparent, var(--hydrogen-green-light));
    animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
    0%, 100% { transform: scaleY(0.3); transform-origin: top; }
    50% { transform: scaleY(1); }
}

/* ========================================
   SECTION HEADER
   ======================================== */

.section-header {
    max-width: 900px;
    margin-bottom: 5rem;
}

.section-header.centered {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.section-header.centered .eyebrow {
    justify-content: center;
}

/* ========================================
   ABOUT / MISSION
   ======================================== */

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.about-visual {
    position: relative;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy-light) 100%);
    border-radius: 4px;
    overflow: hidden;
}

.about-visual svg {
    width: 100%;
    height: 100%;
}

.about-badge {
    position: absolute;
    bottom: 2rem;
    left: 2rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1.25rem 1.5rem;
    border-left: 3px solid var(--hydrogen-green);
    max-width: 280px;
}

.about-badge .label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--hydrogen-green);
    margin-bottom: 0.4rem;
}

.about-badge .value {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--navy-deep);
    line-height: 1.3;
}

.values-list {
    margin-top: 2.5rem;
    list-style: none;
}

.values-list li {
    display: flex;
    gap: 1.25rem;
    padding: 1.25rem 0;
    border-top: 1px solid var(--gray-100);
}

.values-list li:last-child {
    border-bottom: 1px solid var(--gray-100);
}

.value-number {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--hydrogen-green);
    min-width: 40px;
    padding-top: 0.2rem;
}

.value-content strong {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--navy-deep);
    display: block;
    margin-bottom: 0.3rem;
}

.value-content p {
    color: var(--gray-600);
    font-size: 0.95rem;
}

/* ========================================
   SERVICES
   ======================================== */

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.service-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    position: relative;
    overflow: hidden;
    transition: all 0.4s var(--ease);
    border: 1px solid var(--gray-100);
    cursor: pointer;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--hydrogen-green), var(--hydrogen-green-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(10, 37, 64, 0.12);
    border-color: transparent;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 1.5rem;
    color: var(--hydrogen-green);
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-card h3 {
    font-size: 1.35rem;
    margin-bottom: 1rem;
    color: var(--navy-deep);
}

.service-card p {
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.65;
}

.service-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gray-400);
    margin-bottom: 1rem;
}

/* ========================================
   TECHNOLOGY SHOWCASE
   ======================================== */

.tech-showcase {
    background: var(--navy-deep);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.tech-showcase::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(21, 165, 114, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(30, 80, 137, 0.3) 0%, transparent 40%);
    pointer-events: none;
}

.tech-showcase .container {
    position: relative;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.08);
    margin-top: 3rem;
}

.tech-item {
    background: var(--navy-deep);
    padding: 3rem 2.5rem;
    position: relative;
    transition: all 0.3s var(--ease);
}

.tech-item:hover {
    background: #0c2d4a;
}

.tech-item .tech-number {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--hydrogen-green-light);
    margin-bottom: 1rem;
    letter-spacing: 0.1em;
}

.tech-item h3 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.tech-item p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

/* ========================================
   MARKETS
   ======================================== */

.markets-wrapper {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.market-card {
    background: var(--white);
    padding: 3rem;
    border: 1px solid var(--gray-100);
    position: relative;
    overflow: hidden;
}

.market-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(21, 165, 114, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(50%, -50%);
}

.market-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--hydrogen-green);
    margin-bottom: 1rem;
}

.market-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.market-countries {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.country-pill {
    background: var(--gray-50);
    color: var(--navy-deep);
    padding: 0.4rem 0.9rem;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 2px;
    font-family: var(--font-mono);
}

.market-list {
    list-style: none;
    position: relative;
    z-index: 1;
}

.market-list li {
    padding: 0.9rem 0;
    border-top: 1px solid var(--gray-100);
    font-size: 0.95rem;
    color: var(--gray-600);
}

.market-list li strong {
    color: var(--navy-deep);
    font-weight: 600;
    display: block;
    font-family: var(--font-display);
    margin-bottom: 0.2rem;
}

/* ========================================
   PROJECTS
   ======================================== */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    position: relative;
    overflow: hidden;
    background: var(--navy-deep);
    aspect-ratio: 4/3;
    cursor: pointer;
    border-radius: 2px;
}

.project-visual {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.6s var(--ease);
}

.project-visual svg {
    width: 100%;
    height: 100%;
}

.project-card:hover .project-visual {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 30%, rgba(6, 20, 40, 0.95) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2.5rem;
    color: var(--white);
}

.project-overlay .project-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--hydrogen-green-light);
    margin-bottom: 0.75rem;
}

.project-overlay h3 {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.project-overlay p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ========================================
   CTA BANNER
   ======================================== */

.cta-banner {
    background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy-light) 100%);
    color: var(--white);
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    right: -100px;
    top: 50%;
    transform: translateY(-50%);
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(21, 165, 114, 0.2) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-content {
    position: relative;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.cta-content h2 {
    color: var(--white);
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
    max-width: 600px;
}

.cta-actions {
    display: flex;
    justify-content: flex-end;
}

/* ========================================
   FOOTER
   ======================================== */

footer {
    background: #061628;
    color: rgba(255, 255, 255, 0.7);
    padding: 5rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-brand {
    max-width: 360px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--white);
}

.footer-logo img {
    height: 40px;
}

.footer-brand p {
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.footer-tagline {
    font-family: var(--font-display);
    font-style: italic;
    color: var(--hydrogen-green-light);
    font-size: 0.95rem;
}

.footer-col h4 {
    font-size: 0.85rem;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--white);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col a {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s var(--ease);
}

.footer-col a:hover {
    color: var(--hydrogen-green-light);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-legal {
    display: flex;
    gap: 2rem;
}

.footer-legal a:hover {
    color: var(--white);
}

/* ========================================
   PAGE HEADER (for inner pages)
   ======================================== */

.page-header {
    background: linear-gradient(180deg, #061a30 0%, #0a2540 100%);
    color: var(--white);
    padding: 10rem 0 5rem;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(21, 165, 114, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(21, 165, 114, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
}

.page-header .container {
    position: relative;
    z-index: 2;
}

.page-header h1 {
    color: var(--white);
    margin-bottom: 1.5rem;
}

.page-header .lead {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.25rem;
}

.breadcrumb {
    display: flex;
    gap: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.breadcrumb a {
    color: var(--hydrogen-green-light);
}

.breadcrumb a:hover {
    color: var(--white);
}

/* ========================================
   CONTACT FORM
   ======================================== */

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 5rem;
}

.contact-info-card {
    padding: 3rem;
    background: var(--navy-deep);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.contact-info-card::before {
    content: '';
    position: absolute;
    bottom: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(21, 165, 114, 0.2) 0%, transparent 70%);
    border-radius: 50%;
}

.contact-info-card h3 {
    color: var(--white);
    margin-bottom: 1rem;
}

.contact-info-card > p {
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 3rem;
    line-height: 1.7;
    position: relative;
}

.contact-detail {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
}

.contact-icon {
    width: 44px;
    height: 44px;
    background: rgba(21, 165, 114, 0.15);
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--hydrogen-green-light);
    flex-shrink: 0;
}

.contact-detail .label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 0.3rem;
}

.contact-detail .value {
    color: var(--white);
    font-size: 1.05rem;
    font-weight: 500;
}

.contact-detail .value a:hover {
    color: var(--hydrogen-green-light);
}

.contact-form {
    display: grid;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--gray-600);
    margin-bottom: 0.6rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.9rem 1rem;
    border: 1px solid var(--gray-200);
    border-radius: 2px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--navy-deep);
    background: var(--white);
    transition: border-color 0.3s var(--ease);
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
    font-family: var(--font-body);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--hydrogen-green);
}

.form-submit {
    justify-self: start;
    background: var(--hydrogen-green);
    color: var(--white);
    padding: 1rem 2.5rem;
    border: none;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s var(--ease);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    border-radius: 2px;
}

.form-submit:hover {
    background: var(--hydrogen-green-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(21, 165, 114, 0.3);
}

/* ========================================
   TEAM / ESG SECTIONS
   ======================================== */

.esg-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.esg-card {
    padding: 2.5rem;
    background: var(--white);
    border-left: 3px solid var(--hydrogen-green);
    transition: all 0.3s var(--ease);
}

.esg-card:hover {
    box-shadow: 0 20px 60px rgba(10, 37, 64, 0.08);
    transform: translateY(-3px);
}

.esg-card .sdg-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--hydrogen-green);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.esg-card h3 {
    font-size: 1.35rem;
    margin-bottom: 1rem;
}

.esg-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ========================================
   ANIMATIONS
   ======================================== */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 1024px) {
    .hero-content,
    .about-grid,
    .contact-grid,
    .cta-content,
    .markets-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-visual {
        height: 400px;
        max-width: 500px;
        margin: 0 auto;
    }

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

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

    .cta-actions {
        justify-content: flex-start;
    }
}

@media (max-width: 768px) {
    section {
        padding: 4rem 0;
    }

    .container,
    .container-wide {
        padding: 0 1.25rem;
    }

    .hero {
        padding: 7rem 0 4rem;
        min-height: auto;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 360px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        align-items: flex-start;
        padding: 6rem 2rem 2rem;
        gap: 1.5rem;
        transition: right 0.4s var(--ease);
        box-shadow: -20px 0 60px rgba(0, 0, 0, 0.1);
    }

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

    .menu-toggle {
        display: block;
    }

    .services-grid,
    .esg-grid,
    .tech-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

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

    .contact-info-card,
    .market-card,
    .tech-item {
        padding: 2rem;
    }

    .page-header {
        padding: 8rem 0 3rem;
    }
}

@media (max-width: 480px) {
    .hero-cta-group {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }
}