/* ============================================
   V2 — Light/Clean Minimal with Emerald Green
   ============================================ */

:root {
    --bg: #ffffff;
    --bg-alt: #f8fafb;
    --bg-card: #ffffff;
    --bg-card-hover: #f0fdf4;
    --text: #1e293b;
    --text-muted: #64748b;
    --text-dim: #94a3b8;
    --accent: #059669;
    --accent-light: #34d399;
    --accent-bright: #10b981;
    --accent-glow: rgba(5, 150, 105, 0.08);
    --accent-bg: #ecfdf5;
    --border: #e2e8f0;
    --border-light: #cbd5e1;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.1);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --font: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Space Mono', 'Fira Code', monospace;
    --max-width: 1100px;
    --transition: 0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
a { color: inherit; text-decoration: none; }

/* Typography */
h1, h2, h3 { font-weight: 700; line-height: 1.2; color: var(--text); }
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); margin-bottom: 12px; }
h3 { font-size: 1.15rem; margin-bottom: 8px; }

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    background: var(--accent-bg);
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.section-header { margin-bottom: 48px; }
.section-sub { color: var(--text-muted); margin-top: 8px; max-width: 480px; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 30px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    font-family: var(--font);
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover {
    background: #047857;
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(5, 150, 105, 0.25);
}

.btn-ghost {
    background: transparent;
    color: var(--text);
    border: 1.5px solid var(--border);
}
.btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-sm { padding: 8px 22px; font-size: 0.85rem; }
.btn-full { width: 100%; justify-content: center; }

/* Navigation */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition);
}
.nav.scrolled { border-bottom-color: var(--border); }

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

.logo { display: flex; align-items: center; gap: 10px; }
.logo-text {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text);
    letter-spacing: -0.01em;
}
.amp { color: var(--accent); font-weight: 400; }

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}
.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color var(--transition);
}
.nav-links a:hover { color: var(--text); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s;
}

/* Hero */
.hero {
    padding: 140px 0 60px;
    min-height: 92vh;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent);
    background: var(--accent-bg);
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.highlight { color: var(--accent); }

.hero-sub {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.7;
    margin: 20px 0 32px;
    max-width: 480px;
}

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

/* Dashboard Mock */
.hero-visual { display: flex; justify-content: center; }

.dashboard-mock {
    width: 100%;
    max-width: 480px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.mock-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-alt);
}

.mock-controls { display: flex; gap: 12px; margin-left: auto; }
.mock-controls span {
    font-size: 0.75rem;
    color: var(--text-dim);
    line-height: 1;
}

.mock-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-dim);
}

.mock-body { display: flex; }

.mock-sidebar {
    width: 48px;
    background: var(--bg-alt);
    border-right: 1px solid var(--border);
    padding: 16px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.sb-item {
    width: 24px; height: 24px;
    border-radius: 6px;
    background: var(--border);
}
.sb-item.active { background: var(--accent); }

.mock-main { flex: 1; padding: 16px; }

.mock-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

.mock-kpi {
    background: var(--bg-alt);
    border-radius: var(--radius-xs);
    padding: 10px;
    text-align: center;
}
.mk-value {
    display: block;
    font-weight: 700;
    font-size: 0.95rem;
    font-family: var(--font-mono);
    color: var(--text);
}
.mk-label {
    display: block;
    font-size: 0.6rem;
    color: var(--text-dim);
    margin-top: 2px;
}
.mk-change {
    display: inline-block;
    font-size: 0.6rem;
    font-weight: 600;
    margin-top: 4px;
    padding: 1px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
}
.mk-change.up { background: var(--accent-bg); color: var(--accent); }
.mk-change.neutral { background: #f1f5f9; color: var(--text-dim); }

.mock-chart-area {
    height: 60px;
    margin-bottom: 16px;
}
.area-chart { width: 100%; height: 100%; }

.mock-bars {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    height: 60px;
}
.mb {
    flex: 1;
    height: var(--h);
    background: var(--accent);
    border-radius: 4px 4px 0 0;
    position: relative;
    animation: barUp 0.8s ease-out forwards;
    transform-origin: bottom;
}
.mb span {
    position: absolute;
    bottom: -18px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.55rem;
    color: var(--text-dim);
}
@keyframes barUp { from { transform: scaleY(0); } to { transform: scaleY(1); } }

/* Credibility Strip */
.cred-strip {
    padding: 28px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--bg-alt);
}
.cred-items {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}
.cred {
    font-size: 0.9rem;
    color: var(--text-muted);
}
.cred strong { color: var(--text); font-weight: 600; }
.cred-dot {
    width: 4px; height: 4px;
    border-radius: 50%;
    background: var(--border-light);
}

/* Services */
.services { padding: 100px 0; }

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.service-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: all var(--transition);
    position: relative;
}
.service-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.service-card.featured {
    border-color: rgba(5, 150, 105, 0.25);
    background: linear-gradient(135deg, #fff 0%, #f0fdf4 100%);
}
.service-card.featured:hover {
    border-color: rgba(5, 150, 105, 0.5);
}

.card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
}

.service-card p { color: var(--text-muted); line-height: 1.6; }

.card-footer { margin-top: 20px; }
.badge {
    font-size: 0.7rem;
    font-weight: 700;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    background: var(--accent-bg);
    padding: 4px 12px;
    border-radius: 20px;
}

/* Portfolio */
.portfolio { padding: 100px 0; background: var(--bg-alt); }

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

.project-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
}
.project-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.project-preview {
    aspect-ratio: 16 / 10;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
}
.project-preview iframe { width: 100%; height: 100%; border: none; }

.embed-placeholder {
    width: 100%; height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--text-dim);
    font-size: 0.8rem;
}
.ph-icon { color: var(--accent); opacity: 0.5; }

.project-info { padding: 24px; }
.project-info p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 14px; }

.project-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.project-tags span {
    font-size: 0.72rem;
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--accent);
    background: var(--accent-bg);
    padding: 3px 10px;
    border-radius: 4px;
}

/* Process */
.process { padding: 100px 0; }

.process-timeline {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.tl-step {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    padding-bottom: 40px;
    position: relative;
}
.tl-step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 19px;
    top: 44px;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.tl-marker {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.tl-content p { color: var(--text-muted); line-height: 1.6; }

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

.about-grid { max-width: 640px; }
.about-text p { color: var(--text-muted); margin-bottom: 14px; line-height: 1.7; }

.certification {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
    background: var(--accent-bg);
    display: inline-block;
    padding: 6px 14px;
    border-radius: 50px;
    margin-top: 8px;
    margin-bottom: 0;
}

.skill-list { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }
.skill {
    font-size: 0.85rem;
    padding: 6px 16px;
    border-radius: 50px;
    border: 1px solid var(--border);
    color: var(--text-muted);
}
.skill.core {
    border-color: rgba(5, 150, 105, 0.3);
    color: var(--accent);
    background: var(--accent-bg);
}

/* Contact */
.contact { padding: 100px 0; }

.contact-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 48px;
}

.contact-left p { color: var(--text-muted); margin-bottom: 20px; line-height: 1.7; }

.scope-note {
    font-size: 0.85rem;
    color: var(--text-dim);
    font-style: italic;
}

.email-link {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--accent);
    border-bottom: 1px dashed var(--accent);
    transition: opacity var(--transition);
}
.email-link:hover { opacity: 0.7; }

.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.85rem; font-weight: 500; color: var(--text-muted); }
.form-group input,
.form-group textarea {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    padding: 12px 16px;
    color: var(--text);
    font-family: var(--font);
    font-size: 0.95rem;
    transition: border-color var(--transition);
    outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group textarea { resize: vertical; min-height: 100px; }

.form-fallback-note {
    font-size: 0.8rem;
    color: var(--text-dim);
    text-align: center;
    margin-top: 4px;
}
.form-fallback-note a { color: var(--accent); }

/* Footer */
.footer {
    padding: 28px 0;
    border-top: 1px solid var(--border);
}
.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.footer p { font-size: 0.8rem; color: var(--text-dim); }
.footer-company { font-size: 0.75rem; color: var(--text-dim); opacity: 0.7; margin-top: 4px; }

/* Responsive */
@media (max-width: 900px) {
    .hero .container { grid-template-columns: 1fr; }
    .hero { min-height: auto; padding: 120px 0 60px; }
    .hero-visual { order: -1; }
    .services-grid { grid-template-columns: 1fr; }
    .portfolio-grid { grid-template-columns: 1fr; max-width: 480px; }
    .contact-card { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 68px; left: 0; right: 0;
        flex-direction: column;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        padding: 24px;
        gap: 20px;
    }
    .nav-links.open { display: flex; }
    .nav-toggle { display: flex; }
    .hero-actions { flex-direction: column; }
    .cred-dot { display: none; }
    .cred-items { flex-direction: column; text-align: center; gap: 8px; }
    .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
    .mock-row { grid-template-columns: 1fr; }
}