/* ══════════════════════════════════════════
   The Odd Sox International — Digital Card
   Design System & Styles
   ══════════════════════════════════════════ */

/* ── Design Tokens ── */
:root {
  /* Colors */
  --orange: #E8491E;
  --orange-hover: #d43e15;
  --cream: #F5F0E8;
  --gold: #C9A96E;
  --gold-hover: #b8955a;
  --dark: #1A1410;
  --dark-hover: #2a1f18;
  --mid: #5C4A3A;

  /* Semantic */
  --color-success: #2d8a4e;
  --color-error: #dc3545;

  /* Typography */
  --font-display: 'Playfair Display', serif;
  --font-serif: 'Cormorant Garamond', serif;
  --font-body: 'Montserrat', sans-serif;

  /* Font Sizes */
  --text-xs: 0.625rem;
  --text-sm: 0.6875rem;
  --text-base: 0.8125rem;
  --text-md: 0.875rem;
  --text-lg: 1rem;
  --text-xl: 1.125rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 3.25rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-card: 0 30px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(201,169,110,0.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.15);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.6s ease;

  /* Z-index */
  --z-toast: 999;
}

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

/* ── Body ── */
body {
  background: var(--dark);
  font-family: var(--font-body);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(232,73,30,0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 80%, rgba(201,169,110,0.06) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* ── Card Container ── */
.card {
  position: relative;
  z-index: 1;
  background: var(--cream);
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  animation: rise 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Header ── */
.header {
  background: var(--cream);
  padding: 48px 36px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.header::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(ellipse at center, rgba(201,169,110,0.04) 0%, transparent 60%);
  pointer-events: none;
}

.logo-the {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 18px;
  color: var(--orange);
  letter-spacing: 2px;
  display: block;
  margin-bottom: -4px;
}

.logo-main {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 400;
  color: var(--orange);
  letter-spacing: -1px;
  line-height: 1;
}

.logo-main em { font-style: italic; }

.tagline {
  font-family: var(--font-serif);
  font-size: var(--text-base);
  font-weight: 300;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--orange);
  margin-top: 12px;
}

.tagline-sub {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 22px;
  font-weight: 300;
  color: var(--mid);
  margin-top: 4px;
  letter-spacing: 3px;
}

/* ── Logo Image Header ── */
.header-logo-img {
  width: 240px;
  max-width: 80%;
  height: auto;
  margin-bottom: 8px;
}

/* ── Divider ── */
.divider {
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

/* ── Body Section ── */
.body {
  padding: 36px 32px;
  background: var(--cream);
}

/* ── Save Contact Banner ── */
.save-contact-banner {
  background: var(--dark);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: all var(--transition-base);
  margin-bottom: 28px;
  border: 1px solid rgba(201,169,110,0.2);
  text-decoration: none;
}

.save-contact-banner:hover {
  background: var(--dark-hover);
  border-color: var(--gold);
}

.save-contact-icon {
  width: 42px; height: 42px;
  border-radius: var(--radius-full);
  background: var(--orange);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.save-contact-icon svg { width: 20px; height: 20px; color: white; }

.save-contact-text { flex: 1; }

.save-contact-label {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-bottom: 2px;
}

.save-contact-sub {
  font-size: var(--text-base);
  color: rgba(245,240,232,0.6);
}

.save-contact-arrow {
  color: var(--gold);
  font-size: 20px;
  opacity: 0.6;
  transition: transform var(--transition-fast);
}

.save-contact-banner:hover .save-contact-arrow {
  transform: translateX(4px);
  opacity: 1;
}

/* ── Action Buttons ── */
.actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.btn {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--transition-base);
  border: none;
  cursor: pointer;
  width: 100%;
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--orange);
  color: var(--cream);
}
.btn-primary:hover {
  background: var(--orange-hover);
  transform: translateX(4px);
  box-shadow: -4px 0 0 var(--gold);
}

.btn-secondary {
  background: transparent;
  color: var(--dark);
  border: 1px solid rgba(90,74,58,0.25);
}
.btn-secondary:hover {
  background: rgba(201,169,110,0.1);
  border-color: var(--gold);
  transform: translateX(4px);
  box-shadow: -4px 0 0 var(--gold);
}

.btn-gold {
  background: var(--gold);
  color: var(--dark);
}
.btn-gold:hover {
  background: var(--gold-hover);
  transform: translateX(4px);
  box-shadow: -4px 0 0 var(--orange);
}

.btn-icon {
  width: 36px; height: 36px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.btn-icon svg { width: 20px; height: 20px; }

.btn-content { flex: 1; min-width: 0; }

.btn-label {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0.7;
  display: block;
}

.btn-value {
  font-size: var(--text-md);
  font-weight: 400;
  display: block;
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.btn-arrow {
  opacity: 0.4;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  font-size: 18px;
}
.btn:hover .btn-arrow { opacity: 1; transform: translateX(4px); }

.btn-tip .btn-icon {
  background: rgba(201,169,110,0.15);
  border-radius: var(--radius-full);
}

/* ── Copy Button ── */
.btn-copy {
  background: none;
  border: 1px solid rgba(90,74,58,0.2);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  cursor: pointer;
  color: var(--mid);
  font-size: var(--text-xs);
  letter-spacing: 1px;
  text-transform: uppercase;
  font-family: var(--font-body);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}
.btn-copy:hover {
  border-color: var(--gold);
  color: var(--gold);
}
.btn-copy.copied {
  background: var(--color-success);
  color: white;
  border-color: var(--color-success);
}

/* ── Section Labels ── */
.section-label {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin: 28px 0 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
  opacity: 0.4;
}

/* ── Footer ── */
.footer {
  background: var(--dark);
  padding: 20px 32px;
  text-align: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: var(--text-base);
  color: var(--gold);
  letter-spacing: 3px;
  text-transform: uppercase;
}

.footer-sub {
  font-size: var(--text-xs);
  color: rgba(245,240,232,0.3);
  margin-top: 4px;
  letter-spacing: 2px;
}

.social-row {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 16px;
}

.social-link {
  width: 36px; height: 36px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(201,169,110,0.3);
  display: flex; align-items: center; justify-content: center;
  color: var(--gold);
  text-decoration: none;
  transition: all var(--transition-fast);
}
.social-link:hover {
  background: var(--gold);
  color: var(--dark);
  border-color: var(--gold);
}
.social-link svg { width: 16px; height: 16px; }

.footer-credit {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(201,169,110,0.1);
  font-size: var(--text-xs);
  color: rgba(245,240,232,0.2);
  letter-spacing: 1px;
}

.footer-credit a {
  color: rgba(201,169,110,0.4);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer-credit a:hover { color: var(--gold); }

/* ── Toast Notification ── */
.toast {
  position: fixed;
  bottom: 30px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--dark);
  color: var(--gold);
  border: 1px solid var(--gold);
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: var(--text-base);
  letter-spacing: 1px;
  opacity: 0;
  transition: all 0.3s;
  pointer-events: none;
  z-index: var(--z-toast);
  white-space: nowrap;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ══════════════════════════════════════
   App-specific Styles (app.html)
   ══════════════════════════════════════ */

/* ── Login Screen ── */
.login-screen {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 380px;
  animation: rise 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.login-card {
  background: var(--cream);
  border-radius: var(--radius-sm);
  padding: 48px 36px;
  box-shadow: var(--shadow-card);
  text-align: center;
}

.login-logo {
  width: 160px;
  height: auto;
  margin-bottom: 24px;
}

.login-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--dark);
  margin-bottom: 8px;
}

.login-subtitle {
  font-family: var(--font-serif);
  font-size: var(--text-md);
  color: var(--mid);
  font-style: italic;
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 16px;
  text-align: left;
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--mid);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid rgba(90,74,58,0.25);
  border-radius: var(--radius-sm);
  background: white;
  font-family: var(--font-body);
  font-size: var(--text-md);
  color: var(--dark);
  transition: border-color var(--transition-fast);
}
.form-input:focus {
  outline: none;
  border-color: var(--gold);
}

.login-error {
  color: var(--color-error);
  font-size: var(--text-sm);
  margin-bottom: 12px;
  display: none;
}
.login-error.show { display: block; }

.login-btn {
  width: 100%;
  padding: 14px;
  background: var(--orange);
  color: var(--cream);
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: var(--text-md);
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.login-btn:hover { background: var(--orange-hover); }

/* ── Card Screen ── */
.card-screen {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  display: none;
  animation: rise 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.card-screen.active { display: block; }
.login-screen.hidden { display: none; }

/* ── Logout Button ── */
.logout-btn {
  position: fixed;
  top: 20px; right: 20px;
  background: var(--dark);
  color: var(--gold);
  border: 1px solid rgba(201,169,110,0.3);
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 10;
}
.logout-btn:hover {
  background: var(--dark-hover);
  border-color: var(--gold);
}

/* ── Flip Card ── */
.business-card-container {
  perspective: 1000px;
  cursor: pointer;
  margin: 24px 0;
}

.business-card {
  position: relative;
  width: 100%;
  aspect-ratio: 9 / 16;
  max-height: 540px;
  transition: transform var(--transition-slow);
  transform-style: preserve-3d;
}

.business-card-container.flipped .business-card {
  transform: rotateY(180deg);
}

.card-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

/* ── Card Front ── */
.card-front {
  background: var(--cream);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 32px;
}

.card-front-logo {
  width: 180px;
  height: auto;
  margin-bottom: 32px;
}

.card-front-name {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--orange);
  text-align: center;
  margin-bottom: 4px;
  display: none;
}

.card-front-role {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--text-lg);
  color: var(--mid);
  margin-bottom: 24px;
}

.card-front-divider {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin-bottom: 24px;
}

.card-front-info {
  text-align: center;
}

.card-front-info-item {
  font-size: var(--text-sm);
  color: var(--mid);
  margin-bottom: 6px;
  letter-spacing: 1px;
}

.card-front-info-item a {
  color: var(--mid);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.card-front-info-item a:hover { color: var(--orange); }

/* ── Card Back ── */
.card-back {
  background: var(--dark);
  transform: rotateY(180deg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 32px;
}

.card-back-qr {
  background: white;
  padding: 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

.card-back-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--gold);
  letter-spacing: 2px;
  text-align: center;
}

.card-back-hint {
  font-family: var(--font-serif);
  font-size: var(--text-sm);
  color: rgba(245,240,232,0.4);
  font-style: italic;
  margin-top: 8px;
}

.flip-hint {
  text-align: center;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--text-sm);
  color: rgba(245,240,232,0.4);
  letter-spacing: 1px;
}

/* ── Responsive ── */
@media (max-width: 480px) {
  .logo-main { font-size: 42px; }
  .body { padding: 28px 24px; }
  .header { padding: 36px 24px 32px; }
  .login-card { padding: 36px 24px; }
  .card-front { padding: 32px 24px; }
  .card-back { padding: 32px 24px; }
}