/* ============================================================
   style.css — mirunan.com
   Luxury minimal aesthetic with glassmorphism cards
   ============================================================ */

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

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

a {
  color: inherit;
  text-decoration: none;
}

/* --- Design Tokens ------------------------------------------ */
:root {
  /* Colors */
  --color-bg-start: #f1f5f9;       /* slate-100 */
  --color-bg-end: #ffffff;
  --color-text: #0f172a;           /* slate-900 */
  --color-text-muted: #64748b;     /* slate-500 */
  --color-accent: #1e3a5f;         /* deep navy */
  --color-accent-light: #2d5491;
  --color-border: rgba(255, 255, 255, 0.4);
  --color-border-hover: rgba(30, 58, 95, 0.25);
  --color-card-bg: rgba(255, 255, 255, 0.55);
  --color-card-bg-hover: rgba(255, 255, 255, 0.75);

  /* Typography */
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --tracking-tight: -0.04em;
  --tracking-hero: -0.05em;
  --tracking-label: 0.12em;

  /* Spacing */
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;

  /* Layout */
  --container-max: 1200px;
  --container-pad: clamp(1.5rem, 5vw, 3rem);

  /* Cards */
  --card-radius: 16px;
  --card-shadow: 0 4px 24px rgba(15, 23, 42, 0.07), 0 1px 4px rgba(15, 23, 42, 0.05);
  --card-shadow-hover: 0 20px 60px rgba(15, 23, 42, 0.13), 0 4px 16px rgba(15, 23, 42, 0.08);

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration: 280ms;
}

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

body {
  font-family: var(--font);
  color: var(--color-text);
  background: linear-gradient(160deg, var(--color-bg-start) 0%, var(--color-bg-end) 60%);
  background-attachment: fixed;
  min-height: 100vh;
  line-height: 1.6;
}

/* --- Container --------------------------------------------- */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* --- Hero --------------------------------------------------- */
.hero {
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
  text-align: center;
}

.hero-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
  opacity: 0.8;
}

.hero-tagline {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 700;
  letter-spacing: var(--tracking-hero);
  line-height: 1.1;
  color: var(--color-text);
  max-width: 18ch;
  margin-inline: auto;
}

.hero-tagline em {
  font-style: normal;
  color: var(--color-accent);
}

/* --- Section Divider --------------------------------------- */
.section-divider {
  width: 40px;
  height: 2px;
  background: var(--color-accent);
  opacity: 0.25;
  margin-inline: auto;
  margin-bottom: var(--space-8);
  border-radius: 2px;
}

/* --- Apps Section ------------------------------------------ */
.apps {
  padding-bottom: var(--space-24);
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

/* --- App Card ---------------------------------------------- */
.app-card {
  border-radius: var(--card-radius);
  background: var(--color-card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  box-shadow: var(--card-shadow);
  transition:
    transform var(--duration) var(--ease),
    box-shadow var(--duration) var(--ease),
    background var(--duration) var(--ease),
    border-color var(--duration) var(--ease);
  overflow: hidden;
}

.app-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--card-shadow-hover);
  background: var(--color-card-bg-hover);
  border-color: var(--color-border-hover);
}

.card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  cursor: pointer;
}

/* Card Screenshot */
.card-screenshot {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #e2e8f0;
}

.card-screenshot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform var(--duration) var(--ease);
}

.app-card:hover .card-screenshot img {
  transform: scale(1.04);
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 60%,
    rgba(15, 23, 42, 0.08) 100%
  );
  transition: opacity var(--duration) var(--ease);
}

.app-card:hover .card-overlay {
  opacity: 0;
}

/* Card Body */
.card-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}

.card-name {
  font-size: 1.0625rem;
  font-weight: 650;
  letter-spacing: var(--tracking-tight);
  color: var(--color-text);
  line-height: 1.3;
}

.card-description {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  flex: 1;
}

.card-cta {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.01em;
  margin-top: var(--space-2);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: gap var(--duration) var(--ease), color var(--duration) var(--ease);
}

.app-card:hover .card-cta {
  color: var(--color-accent-light);
  gap: 0.5rem;
}

.cta-arrow {
  transition: transform var(--duration) var(--ease);
  display: inline-block;
}

.app-card:hover .cta-arrow {
  transform: translateX(3px);
}

/* --- About Section ----------------------------------------- */
.about {
  padding-bottom: var(--space-24);
  text-align: center;
}

.about-inner {
  max-width: 560px;
  margin-inline: auto;
}

.about-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-accent);
  opacity: 0.7;
  margin-bottom: var(--space-6);
}

.about-text {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text-muted);
  font-weight: 400;
}

/* --- Footer ------------------------------------------------ */
.footer {
  padding-block: var(--space-12);
  border-top: 1px solid rgba(15, 23, 42, 0.07);
  text-align: center;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

.social-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.social-link {
  display: flex;
  align-items: center;
  color: var(--color-text-muted);
  transition: color var(--duration) var(--ease), transform var(--duration) var(--ease);
}

.social-link:hover {
  color: var(--color-accent);
  transform: translateY(-2px);
}

.social-icon {
  width: 22px;
  height: 22px;
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  opacity: 0.5;
}

/* --- Responsive -------------------------------------------- */
@media (max-width: 900px) {
  .app-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
}

@media (max-width: 768px) {
  .hero {
    padding-top: var(--space-12);
    padding-bottom: var(--space-6);
  }

  .app-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .apps,
  .about {
    padding-bottom: var(--space-12);
  }
}