/* ======================================================
   Jessica Pierce Speaks — Custom Design System
   Art direction: Bold, warm, confident, mission-driven
   Palette: Deep plum/navy + warm ivory + magenta accent
   ====================================================== */

/* --- Type Scale (Fluid) --- */
:root {
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* --- Spacing (4px base) --- */
  --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;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* --- Radius --- */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* --- Transitions --- */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);

  /* --- Content Widths --- */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  /* --- Fonts --- */
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
}

/* ======================================================
   LIGHT MODE (default)
   Deep plum + warm ivory + magenta accent
   ====================================================== */
:root, [data-theme="light"] {
  --color-bg:             #FAF8F5;
  --color-surface:        #FFFFFF;
  --color-surface-2:      #F5F2EE;
  --color-surface-offset: #EFEAE4;
  --color-divider:        #E0D9D0;
  --color-border:         #D4CCBF;

  --color-text:           #1A1226;
  --color-text-muted:     #6B5F7A;
  --color-text-faint:     #A99FB5;
  --color-text-inverse:   #FAF8F5;

  /* Primary = lighter plum */
  --color-primary:        #6B2D63;
  --color-primary-hover:  #5A2454;
  --color-primary-active: #4A1942;
  --color-primary-light:  #F3E8F1;

  /* Accent = rich magenta */
  --color-accent:         #C2185B;
  --color-accent-hover:   #A01548;
  --color-accent-active:  #7A1038;
  --color-accent-light:   #FCE4EC;

  /* Secondary = warm gold */
  --color-gold:           #C8960A;
  --color-gold-light:     #FFF8E1;

  --shadow-sm: 0 1px 3px rgba(74, 25, 66, 0.06);
  --shadow-md: 0 4px 12px rgba(74, 25, 66, 0.08);
  --shadow-lg: 0 12px 32px rgba(74, 25, 66, 0.12);
}

/* ======================================================
   DARK MODE
   ====================================================== */
[data-theme="dark"] {
  --color-bg:             #110D18;
  --color-surface:        #1A1424;
  --color-surface-2:      #221A30;
  --color-surface-offset: #1E1629;
  --color-divider:        #2E2440;
  --color-border:         #3A2E50;

  --color-text:           #E8E0F0;
  --color-text-muted:     #9B8DAE;
  --color-text-faint:     #6A5C7D;
  --color-text-inverse:   #1A1226;

  --color-primary:        #D4A0CC;
  --color-primary-hover:  #E0B8DA;
  --color-primary-active: #EAD0E6;
  --color-primary-light:  #2A1E35;

  --color-accent:         #F06292;
  --color-accent-hover:   #F48FB1;
  --color-accent-active:  #F8BBD0;
  --color-accent-light:   #2D1520;

  --color-gold:           #FFD54F;
  --color-gold-light:     #2A2410;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:             #110D18;
    --color-surface:        #1A1424;
    --color-surface-2:      #221A30;
    --color-surface-offset: #1E1629;
    --color-divider:        #2E2440;
    --color-border:         #3A2E50;
    --color-text:           #E8E0F0;
    --color-text-muted:     #9B8DAE;
    --color-text-faint:     #6A5C7D;
    --color-text-inverse:   #1A1226;
    --color-primary:        #D4A0CC;
    --color-primary-hover:  #E0B8DA;
    --color-primary-active: #EAD0E6;
    --color-primary-light:  #2A1E35;
    --color-accent:         #F06292;
    --color-accent-hover:   #F48FB1;
    --color-accent-active:  #F8BBD0;
    --color-accent-light:   #2D1520;
    --color-gold:           #FFD54F;
    --color-gold-light:     #2A2410;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
  }
}

/* ======================================================
   GLOBAL COMPONENTS
   ====================================================== */

/* --- Navigation --- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 90%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.nav-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-logo span {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-top: -2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  position: relative;
  padding: var(--space-1) 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.3s var(--ease-out);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: var(--color-accent);
  color: #fff !important;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transition-interactive), transform var(--transition-interactive);
}

.nav-cta:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.nav-cta::after { display: none !important; }

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all 0.3s var(--ease-out);
}

/* Theme toggle */
.theme-toggle {
  background: none;
  border: none;
  color: var(--color-text-muted);
  padding: var(--space-2);
  cursor: pointer;
  display: flex;
  align-items: center;
}

.theme-toggle:hover {
  color: var(--color-text);
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-divider);
    padding: var(--space-6);
    gap: var(--space-4);
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: var(--text-base); }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-interactive);
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-primary:active { transform: translateY(0); }

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  transform: translateY(-1px);
}

.btn-large {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

/* --- Section Styles --- */
.section {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) var(--space-6);
}

.section-narrow {
  max-width: var(--content-narrow);
  margin-inline: auto;
}

.section-default {
  max-width: var(--content-default);
  margin-inline: auto;
}

.section-wide {
  max-width: var(--content-wide);
  margin-inline: auto;
}

.section-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 60ch;
  line-height: 1.7;
}

/* --- Footer --- */
.footer {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: clamp(var(--space-12), 6vw, var(--space-20)) var(--space-6);
}

.footer a {
  color: var(--color-text-inverse);
  text-decoration: none;
  opacity: 0.8;
  transition: opacity var(--transition-interactive);
}

.footer a:hover { opacity: 1; }

.footer-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-10);
}

.footer-brand p {
  font-size: var(--text-sm);
  opacity: 0.7;
  margin-top: var(--space-3);
  line-height: 1.7;
}

.footer h4 {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
  opacity: 0.6;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links a {
  font-size: var(--text-sm);
}

.footer-bottom {
  max-width: var(--content-wide);
  margin-inline: auto;
  margin-top: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.15);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-xs);
  opacity: 0.5;
}

.social-links {
  display: flex;
  gap: var(--space-4);
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.1);
  transition: background var(--transition-interactive);
}

.social-links a:hover {
  background: rgba(255,255,255,0.2);
}

@media (max-width: 768px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }
}

/* --- Scroll Animations --- */
.fade-in { opacity: 1; }

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 100%;
  }
}

@keyframes reveal-fade { to { opacity: 1; } }

/* --- Card Base --- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-interactive), transform var(--transition-interactive);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* --- Utility --- */
.text-center { text-align: center; }
.text-accent { color: var(--color-accent); }
.text-muted { color: var(--color-text-muted); }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }