/* ═══════════════════════════════════════════════════════
   TerraVerde LLC — Corporate Landing Page Stylesheet
   Dark tech aesthetic: deep navy + emerald + cyan
   ═══════════════════════════════════════════════════════ */

/* ── Custom Properties ─────────────────────────────────── */
:root {
    --bg:          #050b14;
    --bg-surface:  #0c1829;
    --bg-card:     #0f2037;
    --bg-card-alt: #0d1e33;
    --border:      rgba(255,255,255,0.07);
    --border-glow: rgba(16,185,129,0.25);

    --emerald:     #10b981;
    --emerald-lt:  #34d399;
    --emerald-dk:  #059669;
    --cyan:        #06b6d4;
    --cyan-lt:     #22d3ee;

    --text:        #e2e8f0;
    --text-muted:  #94a3b8;
    --text-dim:    #64748b;

    --grad-primary: linear-gradient(135deg, var(--emerald), var(--cyan));
    --grad-card:    linear-gradient(145deg, #0f2037, #0a1628);

    --font-head: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;

    --radius-sm: 8px;
    --radius:    14px;
    --radius-lg: 22px;

    --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
    --shadow-glow: 0 0 40px rgba(16,185,129,0.15);
    --transition: 0.25s cubic-bezier(.4,0,.2,1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Typography Helpers ────────────────────────────────── */
.gradient-text {
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-head);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--emerald);
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.25);
    border-radius: 100px;
    padding: 5px 14px;
    margin-bottom: 20px;
}

.section-title {
    font-family: var(--font-head);
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 640px;
    margin: 0 auto 52px;
    text-align: center;
    line-height: 1.75;
}

/* ── Buttons ───────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-head);
    font-size: 0.9rem;
    font-weight: 700;
    padding: 13px 28px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--grad-primary);
    color: #fff;
    box-shadow: 0 4px 20px rgba(16,185,129,0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(16,185,129,0.45);
}

.btn-secondary {
    background: transparent;
    color: var(--cyan);
    border: 1.5px solid var(--cyan);
    box-shadow: 0 0 0 0 var(--cyan);
}
.btn-secondary:hover {
    background: rgba(6,182,212,0.1);
    box-shadow: 0 0 20px rgba(6,182,212,0.2);
    transform: translateY(-2px);
}

.btn-ghost {
    background: rgba(255,255,255,0.06);
    color: var(--text);
    border: 1.5px solid var(--border);
}
.btn-ghost:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.15);
}

/* ── Navbar ────────────────────────────────────────────── */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 18px 0;
    transition: all var(--transition);
}

.navbar.scrolled {
    background: rgba(5,11,20,0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-text {
    font-family: var(--font-head);
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.01em;
}

.logo-llc {
    font-weight: 400;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-family: var(--font-head);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: color var(--transition);
}

.nav-links a:hover { color: var(--text); }

.nav-links .nav-cta {
    background: var(--grad-primary);
    color: #fff;
    padding: 9px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    box-shadow: 0 2px 12px rgba(16,185,129,0.3);
}
.nav-links .nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(16,185,129,0.45);
    color: #fff;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ── Hero ──────────────────────────────────────────────── */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 24px 80px;
}

.hero-grid-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(16,185,129,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(16,185,129,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    pointer-events: none;
    animation: orbPulse 8s ease-in-out infinite;
}
.hero-orb-1 {
    width: 600px; height: 600px;
    background: rgba(16,185,129,0.08);
    top: -200px; left: -200px;
    animation-delay: 0s;
}
.hero-orb-2 {
    width: 500px; height: 500px;
    background: rgba(6,182,212,0.07);
    bottom: -200px; right: -100px;
    animation-delay: 3s;
}
.hero-orb-3 {
    width: 300px; height: 300px;
    background: rgba(16,185,129,0.05);
    top: 40%; left: 40%;
    animation-delay: 6s;
}

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

.hero-container {
    max-width: 1180px;
    margin: 0 auto;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: relative;
    z-index: 1;
    flex: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--emerald-lt);
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.2);
    border-radius: 100px;
    padding: 6px 16px;
    margin-bottom: 28px;
}

.badge-dot {
    width: 6px; height: 6px;
    background: var(--emerald);
    border-radius: 50%;
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-title {
    font-family: var(--font-head);
    font-size: clamp(2.8rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.08;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    max-width: 660px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 560px;
    line-height: 1.75;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 56px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 28px;
}

.hero-stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.stat-value {
    font-family: var(--font-head);
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

/* Hero Visual (AI node diagram) */
.hero-visual {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 420px;
    height: 420px;
    pointer-events: none;
}

.ai-nodes {
    position: relative;
    width: 100%;
    height: 100%;
}

.node {
    position: absolute;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    animation: nodeFloat 6s ease-in-out infinite;
}

.node-center {
    width: 72px; height: 72px;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    background: var(--grad-primary);
    color: #fff;
    font-size: 1.5rem;
    box-shadow: 0 0 40px rgba(16,185,129,0.4);
    animation: nodeGlow 3s ease-in-out infinite;
    z-index: 2;
}

.node-1 { top: 4%; left: 44%; background: var(--bg-card); border: 1px solid var(--border-glow); color: var(--emerald); animation-delay: 0.5s; }
.node-2 { top: 22%; right: 4%; background: var(--bg-card); border: 1px solid var(--border-glow); color: var(--cyan); animation-delay: 1s; }
.node-3 { bottom: 22%; right: 4%; background: var(--bg-card); border: 1px solid var(--border-glow); color: var(--emerald); animation-delay: 1.5s; }
.node-4 { bottom: 4%; left: 44%; background: var(--bg-card); border: 1px solid var(--border-glow); color: var(--cyan); animation-delay: 2s; }
.node-5 { bottom: 22%; left: 4%; background: var(--bg-card); border: 1px solid var(--border-glow); color: var(--emerald); animation-delay: 2.5s; }
.node-6 { top: 22%; left: 4%; background: var(--bg-card); border: 1px solid var(--border-glow); color: var(--cyan); animation-delay: 3s; }

.node-lines {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0.2;
}
.nl {
    stroke: var(--emerald);
    stroke-width: 1;
    stroke-dasharray: 4 4;
    animation: dashFlow 3s linear infinite;
}
@keyframes dashFlow {
    to { stroke-dashoffset: -16; }
}

@keyframes nodeFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes nodeGlow {
    0%, 100% { box-shadow: 0 0 40px rgba(16,185,129,0.4); }
    50% { box-shadow: 0 0 60px rgba(16,185,129,0.65), 0 0 100px rgba(6,182,212,0.2); }
}

/* ── Opportunity Section ───────────────────────────────── */
.opportunity {
    padding: 100px 0;
    background: var(--bg-surface);
    position: relative;
}

.opportunity .section-title,
.opportunity .section-tag {
    text-align: center;
    display: block;
}

.opportunity .section-title { max-width: 700px; margin: 0 auto 16px; }

.opportunity-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-top: 52px;
}

.opp-card {
    background: var(--grad-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.opp-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--grad-primary);
    transform: scaleX(0);
    transition: transform var(--transition);
    transform-origin: left;
}

.opp-card:hover::before { transform: scaleX(1); }
.opp-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}

.opp-icon {
    width: 48px; height: 48px;
    background: rgba(16,185,129,0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--emerald);
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.opp-card h3 {
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
}

.opp-card p {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.65;
}

/* ── Solutions Section ─────────────────────────────────── */
.solutions {
    padding: 100px 0;
    text-align: center;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    text-align: left;
}

.solution-card {
    background: var(--grad-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.solution-card.featured {
    border-color: rgba(16,185,129,0.3);
    background: linear-gradient(145deg, #0f2037, #0a1e30);
    box-shadow: 0 0 40px rgba(16,185,129,0.08);
}

.solution-badge {
    position: absolute;
    top: 16px; right: 16px;
    font-size: 0.68rem;
    font-weight: 700;
    font-family: var(--font-head);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--emerald);
    background: rgba(16,185,129,0.12);
    border: 1px solid rgba(16,185,129,0.25);
    border-radius: 100px;
    padding: 3px 10px;
}

.solution-card:hover {
    border-color: rgba(16,185,129,0.3);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3), 0 0 0 1px rgba(16,185,129,0.1);
}

.solution-icon {
    width: 52px; height: 52px;
    background: linear-gradient(135deg, rgba(16,185,129,0.15), rgba(6,182,212,0.1));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--emerald);
    font-size: 1.25rem;
    margin-bottom: 20px;
}

.solution-card h3 {
    font-family: var(--font-head);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
}

.solution-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 20px;
}

.solution-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.solution-features li {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 0.84rem;
    color: var(--text-muted);
}

.solution-features li i {
    color: var(--emerald);
    font-size: 0.7rem;
    flex-shrink: 0;
}

/* ── Differentiators ───────────────────────────────────── */
.differentiators {
    padding: 100px 0;
    background: var(--bg-surface);
}

.diff-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.diff-lead {
    font-size: 1.15rem;
    color: var(--text);
    line-height: 1.7;
    margin-bottom: 36px;
    font-style: italic;
}

.diff-points {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.diff-point {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.diff-point-icon {
    width: 40px; height: 40px;
    background: rgba(16,185,129,0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--emerald);
    flex-shrink: 0;
}

.diff-point h4 {
    font-family: var(--font-head);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 5px;
}

.diff-point p {
    font-size: 0.87rem;
    color: var(--text-muted);
    line-height: 1.65;
}

/* Compare card */
.compare-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.compare-col {
    padding: 28px;
}

.compare-col-ours {
    background: linear-gradient(135deg, rgba(16,185,129,0.07), rgba(6,182,212,0.04));
    border-top: 1px solid var(--border);
}

.compare-header {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-head);
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 18px;
}

.compare-col-theirs .compare-header { color: var(--text-muted); }
.compare-col-ours .compare-header { color: var(--emerald); }

.compare-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.compare-col li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.87rem;
    line-height: 1.4;
}

.compare-col .pro { color: var(--text-muted); }
.compare-col .con { color: var(--text-dim); }
.compare-col .pro i { color: var(--emerald); font-size: 0.75rem; }
.compare-col .con i { color: #ef4444; font-size: 0.75rem; }

/* ── Use Cases ─────────────────────────────────────────── */
.use-cases {
    padding: 100px 0;
    text-align: center;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    text-align: left;
}

.use-case-card {
    background: var(--grad-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: all var(--transition);
    position: relative;
}

.use-case-card:hover {
    border-color: rgba(6,182,212,0.3);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.uc-number {
    font-family: var(--font-head);
    font-size: 2.2rem;
    font-weight: 900;
    color: rgba(16,185,129,0.15);
    line-height: 1;
    margin-bottom: 14px;
    letter-spacing: -0.03em;
}

.use-case-card h4 {
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
    line-height: 1.4;
}

.use-case-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 18px;
}

.uc-tag {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--cyan);
    background: rgba(6,182,212,0.08);
    border: 1px solid rgba(6,182,212,0.2);
    border-radius: 100px;
    padding: 4px 12px;
}

/* ── About Section ─────────────────────────────────────── */
.about {
    padding: 100px 0;
    background: var(--bg-surface);
}

.about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content .section-tag { display: block; }

.about-content p {
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 18px;
    font-size: 0.97rem;
}

.about-values {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 32px;
}

.about-value {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 8px 16px;
}

.about-value i { color: var(--emerald); }

/* About card stack */
.about-card-stack {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.about-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--grad-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 24px;
    transition: all var(--transition);
}

.about-card:hover {
    border-color: var(--border-glow);
    transform: translateX(6px);
}

.about-card > i {
    width: 44px; height: 44px;
    background: rgba(16,185,129,0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--emerald);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.about-card div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.about-card strong {
    font-family: var(--font-head);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text);
}

.about-card span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.ac-1 { border-left: 2px solid var(--emerald); }
.ac-2 { border-left: 2px solid var(--cyan); }
.ac-3 { border-left: 2px solid var(--emerald-lt); }

/* ── Contact Section ───────────────────────────────────── */
.contact {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
    background: var(--bg);
}

.contact-bg-orb {
    position: absolute;
    width: 900px; height: 900px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(16,185,129,0.07) 0%, transparent 65%);
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

/* ── Two-column grid ── */
.contact-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 56px;
    align-items: start;
    position: relative;
    z-index: 1;
}

/* ── Left: Form card ── */
.contact-form-wrap {
    background: linear-gradient(145deg, #0f2037, #0a1628);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 18px;
    padding: 40px 44px;
}

.contact-form-wrap .section-tag {
    display: inline-block;
    margin-bottom: 16px;
}

.contact-title {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(1.5rem, 2.8vw, 2.2rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #e2e8f0;
    margin-bottom: 10px;
    line-height: 1.2;
}

.contact-subtitle-left {
    font-size: 0.97rem;
    color: #94a3b8;
    line-height: 1.75;
    margin-bottom: 32px;
}

/* ── Form layout ── */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
    color-scheme: dark;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: #94a3b8;
    font-family: 'Montserrat', sans-serif;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.req { color: #10b981; }

/* ── Inputs: explicit dark styling ── */
.form-group input,
.form-group select,
.form-group textarea {
    display: block;
    width: 100%;
    box-sizing: border-box;
    background-color: #071322 !important;
    border: 1.5px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    color: #e2e8f0 !important;
    font-family: 'Inter', sans-serif;
    font-size: 0.93rem;
    padding: 12px 15px;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

/* Override browser autofill yellow/white */
.form-group input:-webkit-autofill,
.form-group input:-webkit-autofill:hover,
.form-group input:-webkit-autofill:focus,
.form-group input:-webkit-autofill:active {
    -webkit-box-shadow: 0 0 0 1000px #071322 inset !important;
    -webkit-text-fill-color: #e2e8f0 !important;
    caret-color: #e2e8f0;
    transition: background-color 5000s ease-in-out 0s;
}

.form-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364748b' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 38px;
    cursor: pointer;
}

/* Firefox select fix */
.form-group select option {
    background-color: #0f2037;
    color: #e2e8f0;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #3d5166;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: #10b981;
    box-shadow: 0 0 0 3px rgba(16,185,129,0.14);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
}

.btn-submit {
    align-self: flex-start;
    min-width: 200px;
    justify-content: center;
    margin-top: 4px;
}

.btn-submit:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none !important;
}

/* ── Form feedback states ── */
.form-success,
.form-error {
    display: flex;
    align-items: center;
    gap: 13px;
    border-radius: 8px;
    padding: 15px 18px;
    font-size: 0.9rem;
}

.form-success {
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.3);
    color: #34d399;
}

.form-error {
    background: rgba(239,68,68,0.08);
    border: 1px solid rgba(239,68,68,0.25);
    color: #fca5a5;
}

.form-success i { font-size: 1.5rem; color: #10b981; flex-shrink: 0; }
.form-error i   { font-size: 1.5rem; color: #ef4444; flex-shrink: 0; }

.form-success div,
.form-error div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.form-success strong,
.form-error strong {
    font-weight: 700;
    font-family: 'Montserrat', sans-serif;
}

.form-error a { color: #06b6d4; text-decoration: underline; }

/* ── Right: sidebar ── */
.contact-sidebar {
    display: flex;
    flex-direction: column;
    gap: 18px;
    position: sticky;
    top: 96px;
}

.contact-info-card {
    background: linear-gradient(145deg, #0f2037, #0a1628);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    padding: 28px;
}

.contact-info-card h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: #e2e8f0;
    margin-bottom: 22px;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(255,255,255,0.07);
}

.contact-steps {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-step {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.step-num {
    width: 30px;
    height: 30px;
    min-width: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, #10b981, #06b6d4);
    color: #fff;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.78rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-step > div {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding-top: 3px;
}

.contact-step strong {
    display: block;
    font-size: 0.88rem;
    font-weight: 700;
    color: #e2e8f0;
    font-family: 'Montserrat', sans-serif;
}

.contact-step span {
    display: block;
    font-size: 0.81rem;
    color: #94a3b8;
    line-height: 1.5;
}

.contact-direct {
    background: linear-gradient(145deg, #0f2037, #0a1628);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 14px;
    padding: 22px 24px;
}

.contact-direct-row {
    display: flex;
    align-items: center;
    gap: 14px;
}

.contact-direct-row > i {
    width: 42px;
    height: 42px;
    min-width: 42px;
    background: rgba(16,185,129,0.12);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #10b981;
    font-size: 1rem;
    flex-shrink: 0;
}

.cd-label {
    display: block;
    font-size: 0.72rem;
    color: #64748b;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 3px;
}

.cd-value {
    display: block;
    font-size: 0.93rem;
    font-weight: 700;
    color: #34d399;
    font-family: 'Montserrat', sans-serif;
    transition: color 0.25s ease;
    word-break: break-all;
}
.cd-value:hover { color: #22d3ee; }

.contact-quote {
    background: linear-gradient(145deg, #0f2037, #0a1628);
    border: 1px solid rgba(255,255,255,0.07);
    border-left: 3px solid #10b981;
    border-radius: 8px;
    padding: 20px 22px;
    font-style: italic;
    font-size: 0.87rem;
    color: #94a3b8;
    line-height: 1.75;
}

.contact-quote i {
    color: #10b981;
    opacity: 0.5;
    font-size: 0.78rem;
    margin-right: 5px;
}

/* ── Footer ────────────────────────────────────────────── */
.footer {
    background: var(--bg-surface);
    border-top: 1px solid var(--border);
    padding: 60px 0 32px;
}

.footer-layout {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-top: 14px;
    max-width: 300px;
}

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

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col h5 {
    font-family: var(--font-head);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 4px;
}

.footer-col a {
    font-size: 0.87rem;
    color: var(--text-muted);
    transition: color var(--transition);
}

.footer-col a:hover { color: var(--emerald); }

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-dim);
}

/* ── Scroll Reveal ─────────────────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 1024px) {
    .hero { flex-direction: column; align-items: flex-start; }
    .hero-visual { display: none; }
    .diff-layout { grid-template-columns: 1fr; }
    .about-layout { grid-template-columns: 1fr; }
    .footer-layout { grid-template-columns: 1fr; }
    .contact-layout { grid-template-columns: 1fr; }
    .contact-form-wrap { padding: 28px 24px; }
    .contact-sidebar { position: static; }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(5,11,20,0.97);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 28px;
        z-index: 999;
    }
    .nav-links.open { display: flex; }
    .nav-links a { font-size: 1.1rem; }
    .nav-toggle { display: flex; z-index: 1001; }

    .hero { padding: 100px 24px 60px; }
    .hero-title { font-size: 2.4rem; }
    .hero-stats { flex-wrap: wrap; }

    .contact-options { flex-direction: column; align-items: stretch; }
    .contact-option { max-width: 100%; }
    .contact-divider { display: none; }
    .form-row { grid-template-columns: 1fr; }

    .footer-links { grid-template-columns: repeat(2, 1fr); }
    .footer-bottom { flex-direction: column; text-align: center; }

    .solutions-grid { grid-template-columns: 1fr; }
    .use-cases-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .hero-actions { flex-direction: column; }
    .btn { width: 100%; justify-content: center; }
    .footer-links { grid-template-columns: 1fr; }
}