/* ===================================================
   app.jozefowicz.dev — Indie App Catalog
   Mobile-first · Warm neutrals · No external deps
   =================================================== */

/* --- Custom properties --- */
:root {
  --bg:           #f5f3ef;
  --surface:      #ffffff;
  --surface-2:    #faf9f7;
  --border:       #e8e3db;
  --border-hover: #d0c9be;
  --text:         #18181b;
  --text-2:       #52525b;
  --text-3:       #a1a1aa;
  --accent:       #3d6b9e;
  --accent-hover: #2f5580;
  --accent-light: #e8f0f9;

  /* category chip colors */
  --chip-biohacking-bg:   #d1fae5;
  --chip-biohacking-fg:   #065f46;
  --chip-health-bg:       #dcfce7;
  --chip-health-fg:       #166534;
  --chip-productivity-bg: #dbeafe;
  --chip-productivity-fg: #1e40af;
  --chip-focus-bg:        #e0e7ff;
  --chip-focus-fg:        #3730a3;
  --chip-learning-bg:     #ede9fe;
  --chip-learning-fg:     #6d28d9;
  --chip-wellness-bg:     #fef3c7;
  --chip-wellness-fg:     #92400e;

  --radius-sm:  4px;
  --radius:     10px;
  --radius-lg:  16px;
  --radius-xl:  24px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg:  0 12px 32px rgba(0,0,0,0.10), 0 4px 8px rgba(0,0,0,0.04);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               Helvetica, Arial, sans-serif;

  --max-width: 960px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: linear-gradient(180deg, #edeae4 0%, #f5f3ef 30%, #f5f3ef 100%);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}
@media (min-width: 640px) { .container { padding: 0 2rem; } }

/* ===================================================
   SITE HEADER
   =================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 243, 239, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  gap: 1rem;
}
.site-logo a {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}
.site-logo a:hover { color: var(--accent); text-decoration: none; }
.site-nav { display: flex; gap: 1.5rem; list-style: none; }
.site-nav a { font-size: 0.875rem; color: var(--text-2); font-weight: 500; }
.site-nav a:hover { color: var(--text); text-decoration: none; }

/* ===================================================
   HERO
   =================================================== */
.hero {
  padding: 5rem 0 3.5rem;
  background:
    radial-gradient(ellipse 110% 70% at 65% -20%, rgba(91, 140, 200, 0.14) 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 15% 120%, rgba(100, 185, 145, 0.08) 0%, transparent 60%),
    linear-gradient(180deg, #edeae4 0%, #f5f3ef 100%);
  text-align: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--accent);
  background: linear-gradient(135deg, #e4edf8 0%, #edf4ff 100%);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(61, 107, 158, 0.18);
  box-shadow: 0 1px 4px rgba(61, 107, 158, 0.08);
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 1.25rem;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, #3d6b9e 0%, #5b9ed6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.0625rem;
  color: var(--text-2);
  max-width: 480px;
  margin: 0 auto 2rem;
  line-height: 1.75;
}
.hero-ctas { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }

/* ===================================================
   BUTTONS
   =================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s, transform 0.1s;
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: scale(0.98); }

.btn-primary {
  background: linear-gradient(160deg, #5588bb 0%, #3d6b9e 55%, #2f5580 100%);
  color: #fff;
  box-shadow:
    0 2px 6px rgba(61, 107, 158, 0.40),
    0 1px 2px rgba(0,0,0,0.10),
    inset 0 1px 0 rgba(255,255,255,0.18);
}
.btn-primary:hover {
  background: linear-gradient(160deg, #4e7fb0 0%, #365f8e 55%, #274d72 100%);
  color: #fff;
  box-shadow:
    0 4px 14px rgba(61, 107, 158, 0.48),
    0 2px 4px rgba(0,0,0,0.12),
    inset 0 1px 0 rgba(255,255,255,0.15);
}
.btn-secondary {
  background: linear-gradient(160deg, #ffffff 0%, #f7f5f2 100%);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow:
    0 1px 3px rgba(0,0,0,0.06),
    0 1px 2px rgba(0,0,0,0.04),
    inset 0 1px 0 rgba(255,255,255,0.9);
}
.btn-secondary:hover {
  background: linear-gradient(160deg, #f9f7f4 0%, #f0ece6 100%);
  border-color: var(--border-hover);
  color: var(--text);
  box-shadow:
    0 2px 6px rgba(0,0,0,0.08),
    inset 0 1px 0 rgba(255,255,255,0.8);
}
.btn-outline {
  background: linear-gradient(160deg, #fafaf9 0%, #f5f3ef 100%);
  color: var(--text-2);
  border: 1px solid var(--border);
  font-size: 0.875rem;
  padding: 0.5rem 1rem;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04), inset 0 1px 0 rgba(255,255,255,0.8);
}
.btn-outline:hover {
  background: linear-gradient(160deg, #f5f3ef 0%, #eeebe4 100%);
  border-color: var(--border-hover);
  color: var(--text);
}
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ===================================================
   INTRO STRIP
   =================================================== */
.intro {
  padding: 0 0 3.5rem;
  text-align: center;
}
.intro p {
  max-width: 560px;
  margin: 0 auto;
  font-size: 1.0625rem;
  color: var(--text-2);
  line-height: 1.8;
}

/* ===================================================
   APPS SECTION
   =================================================== */
.apps-section {
  padding-bottom: 5rem;
}
.apps-section-header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 2rem;
}
.apps-section-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}
.apps-count {
  font-size: 0.875rem;
  color: var(--text-3);
  font-weight: 500;
}

/* 2-column grid */
.apps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 640px) {
  .apps-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===================================================
   APP CARD
   =================================================== */
.app-card {
  background: linear-gradient(160deg, #ffffff 0%, #fdfcfa 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow:
    0 1px 3px rgba(0,0,0,0.05),
    0 1px 8px rgba(0,0,0,0.04),
    inset 0 1px 0 rgba(255,255,255,0.9);
  transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
  position: relative;
  overflow: hidden;
}
.app-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--card-accent, var(--accent)), color-mix(in srgb, var(--card-accent, var(--accent)) 60%, white));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  opacity: 0;
  transition: opacity 0.25s;
}
.app-card:hover {
  box-shadow:
    0 12px 32px rgba(0,0,0,0.09),
    0 4px 10px rgba(0,0,0,0.05),
    inset 0 1px 0 rgba(255,255,255,0.9);
  border-color: var(--border-hover);
  transform: translateY(-3px);
}
.app-card:hover::before { opacity: 1; }

/* Card top row: logo + meta + status */
.card-top {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

/* App logo */
.app-logo {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  flex-shrink: 0;
  object-fit: cover;
  box-shadow:
    0 2px 8px rgba(0,0,0,0.12),
    0 1px 2px rgba(0,0,0,0.08);
  border: 1px solid rgba(0,0,0,0.06);
}

.card-meta {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.card-title {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

/* Category chips */
.chip {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
}
.chip-biohacking { background: var(--chip-biohacking-bg); color: var(--chip-biohacking-fg); }
.chip-health     { background: var(--chip-health-bg);     color: var(--chip-health-fg); }
.chip-productivity { background: var(--chip-productivity-bg); color: var(--chip-productivity-fg); }
.chip-focus      { background: var(--chip-focus-bg);      color: var(--chip-focus-fg); }
.chip-learning   { background: var(--chip-learning-bg);   color: var(--chip-learning-fg); }
.chip-wellness   { background: var(--chip-wellness-bg);   color: var(--chip-wellness-fg); }

/* Status badge */
.card-status {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: #f0fdf4;
  color: #166534;
  border: 1px solid #bbf7d0;
  flex-shrink: 0;
  white-space: nowrap;
}
.card-status.status-live {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  color: #166534;
  border-color: #bbf7d0;
}
.card-status.status-app {
  background: linear-gradient(135deg, #f0f4ff 0%, #e0e7ff 100%);
  color: #3730a3;
  border-color: #c7d2fe;
}

/* Description */
.card-desc {
  font-size: 0.9375rem;
  color: var(--text-2);
  line-height: 1.7;
  flex: 1;
}

/* Tags */
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}
.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--text-2);
  border: 1px solid var(--border);
}

/* Actions */
.card-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

/* ===================================================
   PHILOSOPHY SECTION
   =================================================== */
.philosophy {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 4rem 0;
}
.philosophy-header {
  text-align: center;
  margin-bottom: 2.5rem;
}
.philosophy-header h2 {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: 0.5rem;
}
.philosophy-header p { font-size: 1rem; color: var(--text-2); }

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

.philosophy-item {
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg);
}
.philosophy-icon {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  display: block;
}
.philosophy-item h3 {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}
.philosophy-item p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* ===================================================
   FOOTER
   =================================================== */
.site-footer {
  background: linear-gradient(180deg, #f9f8f5 0%, #f5f3ef 100%);
  border-top: 1px solid var(--border);
  padding: 3.5rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
@media (min-width: 640px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}
.footer-brand strong {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}
.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-2);
  margin-top: 0.4rem;
  max-width: 240px;
  line-height: 1.6;
}
.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-3);
  margin-bottom: 0.875rem;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.footer-col ul li a { font-size: 0.9rem; color: var(--text-2); }
.footer-col ul li a:hover { color: var(--text); text-decoration: none; }
.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.footer-bottom p { font-size: 0.8125rem; color: var(--text-3); }
.footer-bottom a { color: var(--text-2); }
.footer-bottom a:hover { color: var(--text); text-decoration: none; }

/* ===================================================
   UTILITIES
   =================================================== */
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}