/* ============================================================
   FileBrew — style.css
   Dark theme, amber accent, system fonts, no dependencies
   ============================================================ */

/* ── 1. RESET + CUSTOM PROPERTIES ─────────────────────────── */

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

:root {
  /* Palette */
  --color-bg:              #141414;
  --color-surface:         #1e1e1e;
  --color-surface-hover:   #252525;
  --color-border:          #2e2e2e;
  --color-border-hover:    #f59e0b;
  --color-text:            #e8e4dd;
  --color-text-muted:      #9a9490;
  --color-accent:          #f59e0b;
  --color-accent-dark:     #d97706;
  --color-accent-glow:     rgba(245, 158, 11, 0.15);
  --color-trust:           #34d399;
  --color-ad-bg:           #1a1a1a;
  --color-ad-border:       #2a2a2a;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;

  /* Spacing */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Shape */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;

  /* Shadows */
  --shadow-card:
    0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-card-hover:
    0 8px 24px rgba(0, 0, 0, 0.5),
    0 0 0 1px var(--color-border-hover),
    0 4px 16px var(--color-accent-glow);

  /* Motion */
  --transition-base: 200ms ease;
}


/* ── 2. BASE / GLOBAL ──────────────────────────────────────── */

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

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

a:hover {
  text-decoration: underline;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

ul.nav-list,
ul.trust-list,
ul.tools-grid {
  list-style: none;
}

img,
svg {
  display: block;
}


/* ── 3. LAYOUT UTILITIES ───────────────────────────────────── */

.container {
  width: 100%;
  max-width: 1100px;
  margin-inline: auto;
  padding-inline: var(--space-md);
}

@media (min-width: 640px) {
  .container {
    padding-inline: var(--space-lg);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-inline: var(--space-xl);
  }
}


/* ── 4. HEADER ─────────────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(30, 30, 30, 0.85);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
}

.logo-icon {
  width: 1.5rem;
  height: 1.5rem;
  object-fit: contain;
  display: inline-block;
  vertical-align: middle;
}

.logo-text {
  color: var(--color-text);
}

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

.nav-list {
  display: flex;
  gap: var(--space-lg);
}

.nav-link {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: color var(--transition-base);
  text-decoration: none;
}

.nav-link:hover {
  color: var(--color-text);
  text-decoration: none;
}

/* ── Hamburger button (hidden on desktop) ──────────────────── */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-shrink: 0;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 250ms ease, opacity 250ms ease;
  transform-origin: center;
}

/* Animate bars into X when open */
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 640px) {
  .nav-toggle {
    display: flex;
  }

  /* Nav drawer — slides down from header */
  .site-header nav {
    position: absolute;
    top: 60px; /* matches .header-inner height */
    left: 0;
    right: 0;
    background: rgba(30, 30, 30, 0.97);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    overflow: hidden;
    max-height: 0;
    transition: max-height 300ms ease, border-color 300ms ease;
  }

  .site-header nav.is-open {
    max-height: 400px;
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
    padding: var(--space-sm) 0;
  }

  .nav-list li {
    border-bottom: 1px solid var(--color-border);
  }

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

  .nav-link {
    display: block;
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
  }
}


/* ── 5. HERO ───────────────────────────────────────────────── */

.hero {
  padding-block: var(--space-3xl) var(--space-2xl);
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%,
      rgba(245, 158, 11, 0.08) 0%,
      transparent 70%),
    var(--color-bg);
}

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

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}

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

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}

.trust-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 7px var(--space-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
}

.trust-icon {
  display: flex;
  align-items: center;
  color: var(--color-trust);
  flex-shrink: 0;
}

@media (max-width: 480px) {
  .trust-item {
    font-size: 0.8rem;
    padding: 6px 12px;
  }
}


/* ── 6. AD SLOT ────────────────────────────────────────────── */

#ad-slot {
  background: var(--color-ad-bg);
  border-top: 1px solid var(--color-ad-border);
  border-bottom: 1px solid var(--color-ad-border);
  padding-block: var(--space-md);
}

.ad-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 90px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  position: relative;
}

.ad-label {
  position: absolute;
  top: var(--space-xs);
  left: var(--space-sm);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  opacity: 0.45;
  pointer-events: none;
  user-select: none;
}


/* ── 7. TOOLS SECTION + CARDS ──────────────────────────────── */

.tools-section {
  padding-block: var(--space-2xl);
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.section-sub {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: var(--space-xl);
}

.tools-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 600px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .tools-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-lg);
  }
}

.tool-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-decoration: none;
  color: inherit;
  height: 100%;

  box-shadow: var(--shadow-card);
  transform: translateY(0);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base),
    background-color var(--transition-base);
}

.tool-card:hover,
.tool-card:focus-visible {
  background: var(--color-surface-hover);
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
  text-decoration: none;
}

.tool-card-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: rgba(245, 158, 11, 0.1);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  transition: background var(--transition-base);
}

.tool-card:hover .tool-card-icon,
.tool-card:focus-visible .tool-card-icon {
  background: rgba(245, 158, 11, 0.18);
}

.tool-card-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  flex: 1;
  min-width: 0;
}

.tool-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
}

.tool-card-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.tool-card-cta {
  display: inline-block;
  margin-top: var(--space-sm);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.01em;
  transition: color var(--transition-base);
}

.tool-card:hover .tool-card-cta,
.tool-card:focus-visible .tool-card-cta {
  color: var(--color-accent-dark);
}


/* ── 8. FOOTER ─────────────────────────────────────────────── */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-xl);
  margin-top: var(--space-2xl);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-muted);
}

.footer-privacy {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  max-width: 420px;
  line-height: 1.6;
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  opacity: 0.5;
}

.footer-links {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-base);
}

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

/* ── 9b. ADBLOCK MODAL ──────────────────────────────────────── */

#adblock-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

#adblock-overlay.is-visible {
  display: flex;
}

.adblock-modal {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6), 0 0 0 1px var(--color-border);
  max-width: 440px;
  width: 100%;
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
  animation: adblock-modal-in 220ms ease both;
}

@keyframes adblock-modal-in {
  from { opacity: 0; transform: translateY(12px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0)    scale(1); }
}

.adblock-modal-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--color-accent-glow);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.adblock-modal-title {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--color-text);
  margin: 0 0 var(--space-sm);
}

.adblock-modal-msg {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0 0 var(--space-xl);
}

.adblock-modal-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.adblock-btn-support {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  background: var(--color-accent);
  color: #000;
  font-weight: 700;
  font-size: 0.95rem;
  border: none;
  border-radius: var(--radius-md);
  padding: 12px var(--space-lg);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition-base), transform var(--transition-base);
}

.adblock-btn-support:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
}

.adblock-btn-support:active {
  transform: translateY(0);
}

.adblock-btn-close {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  font-size: 0.875rem;
  padding: 10px var(--space-lg);
  cursor: pointer;
  transition: border-color var(--transition-base), color var(--transition-base);
}

.adblock-btn-close:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

.adblock-modal-x {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-base), background var(--transition-base);
}

.adblock-modal-x:hover {
  color: var(--color-text);
  background: var(--color-surface-hover);
}


/* ── 10. SHARE BAR ─────────────────────────────────────────── */

.share-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding-block: var(--space-lg);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-2xl);
  flex-wrap: wrap;
}

.share-bar-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.share-bar-label.copied {
  color: var(--color-accent);
}

.share-bar-buttons {
  display: flex;
  gap: var(--space-sm);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  text-decoration: none;
  transition: border-color var(--transition-base), color var(--transition-base);
  flex-shrink: 0;
}

.share-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.share-btn svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* ── 9. REDUCED MOTION ─────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}