/* Novustack — custom site (no third-party template) */

:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --text: #15202b;
  --muted: #5c6b7a;
  --border: #dde3ea;
  --accent: #3498db;
  --accent-hover: #2980b9;
  --accent-soft: #eaf4fc;
  --dark: #2c3e50;
  --radius: 12px;
  --shadow: 0 12px 40px rgba(13, 27, 42, 0.08);
  --font: "DM Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --max: 1120px;
  --header-h: 72px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-hover);
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--dark);
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  font-family: var(--font);
  font-size: 0.85rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
}

.nav-list {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  display: block;
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
  color: var(--muted);
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-list a:hover,
.nav-list a[aria-current="page"] {
  color: var(--accent);
  background: var(--accent-soft);
}

/* Hero */
.hero {
  padding: 4.5rem 0 3.5rem;
  background: linear-gradient(160deg, var(--dark) 0%, #34495e 50%, var(--accent) 100%);
  color: #f0f4f8;
}

.hero-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1.2fr 1fr;
  }
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #a8d8f0;
  margin: 0 0 0.75rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.15;
  margin: 0 0 1rem;
  letter-spacing: -0.03em;
}

.hero-lead {
  font-size: 1.15rem;
  color: #c5d4e0;
  margin: 0 0 1.75rem;
  max-width: 34rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.hero-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-card li {
  padding: 0.65rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.95rem;
}

.hero-card li:last-child {
  border-bottom: none;
}

.hero-card strong {
  color: #fff;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

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

.btn-primary:hover {
  background: var(--accent-soft);
  color: var(--accent-hover);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

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

.btn-accent:hover {
  background: var(--accent-hover);
  color: #fff;
}

/* Sections */
.section {
  padding: 4rem 0;
}

.section-header {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto 2.5rem;
}

.section-header h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.02em;
}

.section-header p {
  margin: 0;
  color: var(--muted);
}

/* Cards */
.card-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .card-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }

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

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Feature row */
.feature-row {
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 768px) {
  .feature-row {
    grid-template-columns: 1fr 1fr;
  }
}

.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.feature-list li {
  display: flex;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
  min-width: 2rem;
}

/* CTA band */
.cta-band {
  background: var(--dark);
  color: #e8eef4;
  padding: 3rem 0;
  text-align: center;
}

.cta-band h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
}

.cta-band p {
  margin: 0 auto 1.5rem;
  max-width: 32rem;
  color: #a8b8c8;
}

/* Page header (inner pages) */
.page-hero {
  padding: 3rem 0 2rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.page-hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
}

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0 0 0.5rem;
}

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

/* Projects */
.project-card {
  overflow: hidden;
  padding: 0;
}

.project-visual {
  height: 160px;
  background: linear-gradient(135deg, var(--accent-soft), #d6eaf8);
  display: flex;
  align-items: flex-end;
  padding: 1rem;
}

.project-visual span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  background: var(--surface);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
}

.project-body {
  padding: 1.25rem 1.5rem 1.5rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
}

.project-tags li {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  background: var(--bg);
  border-radius: 4px;
  color: var(--muted);
}

/* About tech */
.tech-columns {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 600px) {
  .tech-columns {
    grid-template-columns: 1fr 1fr;
  }
}

.tech-columns ul {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.tech-columns li {
  margin-bottom: 0.35rem;
}

/* Contact */
.contact-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1.1fr 1fr;
  }
}

form label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin: 0 0 0.35rem;
}

form input,
form select,
form textarea {
  width: 100%;
  font-family: var(--font);
  font-size: 1rem;
  padding: 0.65rem 0.85rem;
  margin-bottom: 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
}

form input:focus,
form select:focus,
form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.turnstile-wrap {
  margin: 1rem 0 0.5rem;
  min-height: 65px;
}

#contact-submit:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  font-size: 0.9rem;
  color: var(--accent);
  min-height: 1.25rem;
  margin-top: 0.75rem;
}

.form-status--ok {
  color: #1e7e34;
}

.form-status--error {
  color: #c0392b;
}

.contact-info {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.contact-info li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}

.contact-info strong {
  display: block;
  color: var(--text);
  font-size: 0.85rem;
  margin-bottom: 0.15rem;
}

/* Footer */
.site-footer {
  background: var(--dark);
  color: #a8b8c8;
  padding: 3rem 0 0;
  margin-top: 2rem;
}

.footer-grid {
  display: grid;
  gap: 2rem;
  padding-bottom: 2rem;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.site-footer h3 {
  color: #fff;
  font-size: 1rem;
  margin: 0 0 0.75rem;
}

.site-footer p {
  margin: 0;
  font-size: 0.95rem;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links a {
  color: #a8b8c8;
  display: block;
  padding: 0.25rem 0;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.25rem 0;
  font-size: 0.85rem;
  text-align: center;
}

/* 404 */
.not-found {
  text-align: center;
  padding: 5rem 0;
}

.not-found h1 {
  font-size: 4rem;
  margin: 0;
  color: var(--accent);
}

/* Mobile nav */
@media (max-width: 720px) {
  .nav-toggle {
    display: block;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem;
  }

  .nav-list.is-open {
    display: flex;
  }

  .site-header {
    position: relative;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}