/* DeckSense - App Color Palette & Fluid Design
   decksense.app */

:root {
  /* DeckSense app palette */
  --color-primary-gold:   #f3c853;
  --color-secondary-green:#27ae60;
  --color-bg-dark:        #333533;
  --color-bg-darker:      #2a2d3a;
  --color-bg-deep:        #1e1f1e;
  --color-surface:        #484848;
  --color-border:         #484848;
  --color-border-subtle:  #3a3a3a;

  --color-text:           #e8eddf;
  --color-text-muted:     #9a9a9a;
  --color-text-dim:       #808080;

  --color-accent:         var(--color-primary-gold);
  --color-accent-hover:   #ffd966;

  /* Pro badge gradient (coral → orange) */
  --color-pro-badge-start: #ff6b6b;
  --color-pro-badge-end:   #ff9944;

  /* Spacing */
  --space-xs:   4px;
  --space-sm:   8px;
  --space-md:   16px;
  --space-lg:   24px;
  --space-xl:   32px;
  --space-2xl:  48px;
  --space-3xl:  64px;

  /* Radius */
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  14px;
  --radius-xl:  20px;
  --radius-pill: 9999px;

  /* Shadows */
  --shadow-subtle: 0 2px 8px rgba(0,0,0,0.2);
  --shadow-card:   0 4px 16px rgba(0,0,0,0.25);
  --shadow-nav:    0 -2px 12px rgba(0,0,0,0.2);

  /* Transitions */
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 0.2s;
  --duration-normal: 0.35s;
  --duration-slow: 0.5s;
}

/* ─── Fluid animations ─── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

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

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--color-bg-dark);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
  background: linear-gradient(180deg, #1a1d2a 0%, #2a2d3a 50%, var(--color-bg-dark) 100%);
  display: flex;
  flex-direction: column;
}

/* True black canvas; optional html class matches body.landing for full-viewport fill */
html.landing-html,
body.landing {
  background: #000000;
  background-color: #000000;
}

html.landing-html {
  min-height: 100%;
}

body.landing {
  /* Very subtle edge glow only — reads as black */
  background-image:
    radial-gradient(ellipse 100% 70% at 50% -30%, rgba(243, 200, 83, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse 50% 45% at 100% 30%, rgba(255, 107, 107, 0.025) 0%, transparent 45%);
  background-attachment: fixed;
}

main { flex: 1; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: var(--radius-pill); }
::-webkit-scrollbar-track { background: transparent; }
scrollbar-color: var(--color-border) transparent;
scrollbar-width: thin;

*:focus-visible { outline: 2px solid var(--color-primary-gold); outline-offset: 2px; }

a { color: var(--color-primary-gold); text-decoration: none; transition: color var(--duration-fast) var(--ease-out); }
a:hover { color: var(--color-accent-hover); }

/* ─── Site Header ─── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(30, 31, 30, 0.98);
  border-bottom: 1px solid var(--color-border-subtle);
}

/* Landing: no divider line under nav (override base border) */
body.landing .site-header {
  border-bottom: none !important;
  box-shadow: none;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.site-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
}

.site-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-logo img {
  height: 36px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
}

.site-logo .logo-fallback {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--color-text);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.site-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-primary-gold);
}

/* ─── Page content wrapper ─── */
.page-content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
}

.page-content h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.page-content h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.page-content p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.page-content ul, .page-content ol {
  margin: var(--space-md) 0;
  padding-left: var(--space-xl);
  color: var(--color-text-muted);
}

.page-content li { margin-bottom: var(--space-xs); }

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: transform var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out);
}

.btn-primary {
  background: var(--color-primary-gold);
  color: var(--color-bg-deep);
  border: none;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
}

/* ─── Form inputs ─── */
input[type="email"],
input[type="text"],
input[type="password"],
input[type="number"],
input[type="tel"],
textarea {
  width: 100%;
  max-width: 360px;
  padding: 12px 16px;
  font-size: 15px;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-bg-darker);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color 0.2s var(--ease-out);
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary-gold);
  box-shadow: 0 0 0 2px rgba(243, 200, 83, 0.2);
  transition: border-color 0.2s var(--ease-out), box-shadow 0.3s var(--ease-smooth);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

/* ─── Footer ─── */
.site-footer {
  margin-top: auto;
  padding: var(--space-2xl) var(--space-lg);
  border-top: 1px solid var(--color-border-subtle);
  background: var(--color-bg-deep);
}

body.landing .site-footer {
  background: #000000;
  border-top: none !important;
  box-shadow: none;
}

.site-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.site-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.site-footer-links a {
  font-size: 13px;
  color: var(--color-text-dim);
}

.site-footer-links a:hover {
  color: var(--color-primary-gold);
}

.site-footer-social {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.site-footer-social .social-icon {
  color: var(--color-text-dim);
  transition: color var(--duration-fast) var(--ease-out);
}

.site-footer-social .social-icon:hover {
  color: var(--color-primary-gold);
}

.site-footer-social .social-icon svg {
  display: block;
}

.site-footer p {
  font-size: 12px;
  color: var(--color-text-dim);
  line-height: 1.6;
}

/* ─── API docs ─── */
.api-docs h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.api-docs h2 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border-subtle);
}

.api-docs h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-xs);
}

.api-docs p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: var(--space-md);
}

.api-docs ul {
  margin: var(--space-sm) 0;
  padding-left: var(--space-xl);
  color: var(--color-text-muted);
  font-size: 14px;
}

.api-docs li {
  margin-bottom: var(--space-xs);
}

.api-docs table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-md) 0;
  font-size: 13px;
  background: var(--color-bg-darker);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.api-docs th,
.api-docs td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border-subtle);
}

.api-docs th {
  background: rgba(72, 72, 72, 0.4);
  color: var(--color-text);
  font-weight: 600;
}

.api-docs td {
  color: var(--color-text-muted);
}

.api-docs tr:last-child td {
  border-bottom: none;
}

.api-docs pre {
  background: var(--color-bg-deep);
  color: var(--color-text);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
  font-size: 12px;
  line-height: 1.5;
  border: 1px solid var(--color-border-subtle);
  margin: var(--space-md) 0;
}

.api-docs code {
  font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
  font-size: 12px;
  background: var(--color-bg-deep);
  color: var(--color-primary-gold);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.api-docs .api-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.api-docs .api-nav a {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: var(--color-bg-darker);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--color-text-muted);
  transition: all var(--duration-fast) var(--ease-out);
}

.api-docs .api-nav a:hover {
  border-color: var(--color-primary-gold);
  color: var(--color-primary-gold);
}

/* ─── Responsive ─── */
@media (max-width: 640px) {
  .site-header-inner { flex-direction: column; align-items: stretch; }
  .site-nav { justify-content: center; flex-wrap: wrap; }
}