/* =========================================================
   VyBuilds Portfolio — Main Stylesheet
   Inspired by artmvstd.com minimal aesthetic
   ========================================================= */

/* ---------- Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;1,300&family=DM+Serif+Display:ital@0;1&display=swap');

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

:root {
  --black:       #0a0a0a;
  --white:       #ffffff;
  --gray-100:    #f5f5f5;
  --gray-200:    #ebebeb;
  --gray-400:    #aaaaaa;
  --gray-600:    #666666;
  --gray-800:    #333333;
  --accent:      #111111;

  --font-sans:   'DM Sans', sans-serif;
  --font-serif:  'DM Serif Display', serif;

  --header-h:    64px;
  --radius-icon: 22.5%;   /* iOS-style squircle approximation */
  --radius-card: 18px;
  --max-w:       1100px;
  --transition:  0.2s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: cover;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--black);
}

.nav-desktop {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-size: 14px;
  font-weight: 400;
  color: var(--gray-600);
  transition: color var(--transition);
  position: relative;
}

.nav-link:hover,
.nav-link.active { color: var(--black); }

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0; right: 0;
  height: 1.5px;
  background: var(--black);
  border-radius: 2px;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--black);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile nav */
.nav-mobile {
  display: none;
  flex-direction: column;
  border-top: 1px solid var(--gray-200);
  padding: 8px 0;
  background: rgba(255,255,255,0.97);
}

.nav-mobile.open { display: flex; }

.nav-mobile .nav-link {
  padding: 12px 24px;
  font-size: 15px;
  border-radius: 0;
}

.nav-mobile .nav-link:hover { background: var(--gray-100); }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  padding: 96px 24px 64px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.hero-inner { max-width: 540px; }

.hero-eyebrow {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(44px, 7vw, 80px);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--black);
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 16px;
  font-weight: 300;
  color: var(--gray-600);
  line-height: 1.7;
}

/* =========================================================
   APPS GRID
   ========================================================= */
.apps-section {
  padding: 24px 0 80px;
}

.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 32px 24px;
  padding: 0;
}

.app-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.app-icon-wrap {
  width: 100%;
  aspect-ratio: 1;
  max-width: 110px;
  border-radius: var(--radius-icon);
  overflow: hidden;
  background: var(--gray-100);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}

/* Placeholder gradient shown when image fails to load */
.app-icon-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--gray-200) 0%, var(--gray-100) 100%);
  z-index: 0;
  pointer-events: none;
}

.app-icon {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
}

.app-card:hover .app-icon-wrap {
  transform: scale(1.05) translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.10);
}

.app-name {
  font-size: 12px;
  font-weight: 400;
  color: var(--gray-600);
  text-align: center;
  line-height: 1.3;
  max-width: 110px;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--transition), transform var(--transition);
}

.app-card:hover .app-name {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   CTA / GET IN TOUCH
   ========================================================= */
.cta-section {
  padding: 80px 0 100px;
  border-top: 1px solid var(--gray-200);
}

.cta-inner {
  text-align: center;
}

.cta-title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 400;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.cta-sub {
  font-size: 16px;
  font-weight: 300;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 36px;
}

.btn-primary {
  display: inline-block;
  padding: 13px 32px;
  background: var(--black);
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: 100px;
  transition: background var(--transition), transform var(--transition);
}

.btn-primary:hover {
  background: var(--gray-800);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-block;
  padding: 11px 28px;
  background: transparent;
  color: var(--black);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  border: 1.5px solid var(--gray-400);
  border-radius: 100px;
  transition: border-color var(--transition), transform var(--transition);
}

.btn-secondary:hover {
  border-color: var(--black);
  transform: translateY(-1px);
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
  border-top: 1px solid var(--gray-200);
  padding: 24px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copy {
  font-size: 13px;
  color: var(--gray-600);
}

.footer-nav {
  display: flex;
  gap: 24px;
}

.footer-nav a {
  font-size: 13px;
  color: var(--gray-600);
  transition: color var(--transition);
}

.footer-nav a:hover { color: var(--black); }

/* =========================================================
   APP DETAIL PAGES — shared layout
   ========================================================= */

/* page hero used on app pages */
.page-hero {
  padding: 64px 24px 48px;
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  gap: 28px;
  flex-wrap: wrap;
}

.page-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-icon);
  overflow: hidden;
  background: var(--gray-100);
  flex-shrink: 0;
}

.page-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero-text {}

.page-eyebrow {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 8px;
}

.page-title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 10px;
}

.page-tagline {
  font-size: 15px;
  color: var(--gray-600);
  font-weight: 300;
}

.page-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
}

/* Main content area */
.page-content {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px 80px;
}

/* Section headers inside app pages */
.section-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 16px;
}

/* Divider */
.divider {
  border: none;
  border-top: 1px solid var(--gray-200);
  margin: 48px 0;
}

/* Features list */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.feature-item {
  padding: 20px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-card);
}

.feature-icon {
  font-size: 22px;
  margin-bottom: 10px;
}

.feature-title {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
}

.feature-desc {
  font-size: 13px;
  color: var(--gray-600);
  line-height: 1.5;
}

/* Screenshots row */
.screenshots-row {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 48px;
  scrollbar-width: none;
}

.screenshots-row::-webkit-scrollbar { display: none; }

.screenshot-item {
  flex-shrink: 0;
  width: 200px;
  border-radius: 16px;
  overflow: hidden;
  background: var(--gray-100);
  aspect-ratio: 9/19.5;
  /* REPLACE: each item will display a screenshot image */
}

.screenshot-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* =========================================================
   FAQ / ACCORDION
   ========================================================= */
.faq-list { list-style: none; }

.faq-item {
  border-top: 1px solid var(--gray-200);
}

.faq-item:last-child { border-bottom: 1px solid var(--gray-200); }

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 400;
  color: var(--black);
  cursor: pointer;
  text-align: left;
  transition: color var(--transition);
}

.faq-question:hover { color: var(--gray-600); }

.faq-chevron {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  stroke: currentColor;
  transition: transform 0.25s ease;
}

.faq-item.open .faq-chevron { transform: rotate(180deg); }

.faq-answer {
  display: none;
  padding: 0 0 20px;
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.7;
}

.faq-answer p + p { margin-top: 10px; }

.faq-item.open .faq-answer { display: block; }

/* =========================================================
   POLICY PAGES (privacy, terms)
   ========================================================= */
.policy-page {
  max-width: 680px;
  margin: 0 auto;
  padding: 64px 24px 100px;
}

.policy-page h1 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 400;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.policy-date {
  font-size: 13px;
  color: var(--gray-600);
  margin-bottom: 40px;
}

.policy-page h2 {
  font-size: 15px;
  font-weight: 500;
  margin: 32px 0 10px;
}

.policy-page p, .policy-page li {
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.75;
}

.policy-page ul {
  padding-left: 18px;
  margin: 10px 0;
}

/* =========================================================
   SUPPORT / HELP PAGE
   ========================================================= */
.support-page {
  max-width: 680px;
  margin: 0 auto;
  padding: 64px 24px 100px;
}

.support-page h1 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 400;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.support-intro {
  font-size: 15px;
  color: var(--gray-600);
  font-weight: 300;
  margin-bottom: 48px;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 768px) {
  .nav-desktop { display: none; }
  .hamburger { display: flex; }

  .hero { padding: 56px 20px 40px; }

  .apps-grid {
    grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
    gap: 24px 16px;
  }

  .app-icon-wrap { max-width: 88px; }
  .app-name { opacity: 1; transform: none; }

  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-nav { flex-wrap: wrap; gap: 16px; }

  .page-hero { padding: 40px 20px 32px; gap: 20px; }
  .page-icon { width: 64px; height: 64px; }

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

@media (max-width: 400px) {
  .apps-grid {
    grid-template-columns: repeat(auto-fill, minmax(74px, 1fr));
    gap: 20px 12px;
  }
}

@media (min-width: 1200px) {
  .apps-grid { gap: 36px 28px; }
}

/* Landscape mobile */
@media (max-width: 900px) and (orientation: landscape) {
  .hero { padding: 40px 24px 24px; }
  .hero-title { font-size: 42px; }
}