/* ============================================================
   DARSHITA PORTFOLIO — DESIGN SYSTEM
   Premium Editorial Portfolio | Dark Mode Default
   ============================================================ */

/* --- Google Fonts are loaded in HTML <head> --- */

/* ============================================================
   1. CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ============================================================ */
:root {
  /* Colors — Dark Mode (Default) */
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #141414;
  --text-primary: #d4b896;
  --text-secondary: #c8b89a;
  --text-body: #a89880;
  --text-muted: #706050;
  --accent: #c0392b;
  --accent-hover: #e74c3c;
  --accent-glow: rgba(192, 57, 43, 0.3);
  --grid-line: rgba(80, 80, 80, 0.22);
  --border: rgba(100, 100, 100, 0.3);
  --border-subtle: rgba(80, 80, 80, 0.15);
  --wireframe-cyan: #00bcd4;
  --wireframe-grey: rgba(160, 160, 160, 0.4);
  --header-bg: rgba(10, 10, 10, 0.85);
  --overlay: rgba(0, 0, 0, 0.6);

  /* Typography Scale */
  --font-hero: 'Bebas Neue', 'Impact', sans-serif;
  --font-heading: 'Bebas Neue', 'Impact', sans-serif;
  --font-body: 'Space Mono', 'Courier New', monospace;
  --font-script: 'Dancing Script', cursive;

  --fs-hero: clamp(4.5rem, 14vw, 11rem);
  --fs-section: clamp(3.5rem, 10vw, 8rem);
  --fs-h2: clamp(2rem, 5vw, 3.5rem);
  --fs-h3: clamp(1.25rem, 2.5vw, 1.75rem);
  --fs-body: clamp(0.85rem, 1.2vw, 1.05rem);
  --fs-small: clamp(0.75rem, 1vw, 0.875rem);
  --fs-label: clamp(0.7rem, 0.9vw, 0.8rem);
  --fs-script: clamp(3rem, 8vw, 6rem);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-2xl: 8rem;
  --space-section: clamp(4rem, 10vh, 8rem);

  /* Layout */
  --max-width: 1366px;
  --content-width: 1100px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --header-height: 70px;

  /* Animation */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 0.3s;
  --duration-normal: 0.6s;
  --duration-slow: 1s;
  --duration-reveal: 1.2s;

  /* Borders */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

/* Light Mode */
[data-theme="light"] {
  --bg-primary: #f5f0eb;
  --bg-secondary: #ece5dc;
  --bg-card: #e8e0d6;
  --text-primary: #1a1612;
  --text-secondary: #2d2820;
  --text-body: #4a4238;
  --text-muted: #8a7e72;
  --accent: #c0392b;
  --accent-hover: #a93226;
  --accent-glow: rgba(192, 57, 43, 0.15);
  --grid-line: rgba(180, 170, 155, 0.2);
  --border: rgba(160, 150, 135, 0.35);
  --border-subtle: rgba(160, 150, 135, 0.15);
  --wireframe-cyan: #008b9e;
  --wireframe-grey: rgba(120, 110, 100, 0.3);
  --header-bg: rgba(245, 240, 235, 0.9);
  --overlay: rgba(245, 240, 235, 0.6);
}

/* ============================================================
   2. RESET & BASE
   ============================================================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--text-body);
  background-color: var(--bg-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--duration-slow) var(--ease-in-out),
              color var(--duration-slow) var(--ease-in-out);
}

/* Grid Overlay Background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px);
  background-size: calc(100% / 11) calc(100vh / 6);
  pointer-events: none;
  z-index: 0;
  transition: background-image var(--duration-slow) var(--ease-in-out);
}

img, video, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

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

a:hover, a:focus-visible {
  color: var(--accent);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

::selection {
  background-color: var(--accent);
  color: #fff;
}

/* ============================================================
   3. UTILITY CLASSES
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  position: relative;
  z-index: 1;
}

.container--narrow {
  max-width: var(--content-width);
}

.section-label {
  font-family: var(--font-body);
  font-size: var(--fs-label);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  display: flex;
  align-items: center;
  gap: 0.5em;
  margin-bottom: var(--space-md);
}

.section-label::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--text-secondary);
  flex-shrink: 0;
}

.section-heading {
  font-family: var(--font-heading);
  font-size: var(--fs-section);
  color: var(--text-primary);
  line-height: 0.95;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.section-divider {
  width: 100%;
  height: 1px;
  background: var(--border);
  margin: var(--space-lg) 0;
}

.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;
}

/* ============================================================
   4. HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  background: var(--header-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--duration-fast) var(--ease-in-out),
              transform var(--duration-fast) var(--ease-out-quart);
}

.site-header.is-hidden {
  transform: translateY(-100%);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--text-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
}

.header-logo span {
  font-family: var(--font-script);
  color: var(--accent);
  text-transform: none;
  font-size: 1.3rem;
  margin-left: 0.2em;
}

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

.header-nav__list {
  display: flex;
  gap: var(--space-md);
}

.header-nav__link {
  font-family: var(--font-body);
  font-size: var(--fs-small);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.25em 0;
  position: relative;
  transition: color var(--duration-fast);
}

.header-nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--duration-fast) var(--ease-out-expo);
}

.header-nav__link:hover,
.header-nav__link:focus-visible {
  color: var(--text-primary);
}

.header-nav__link:hover::after,
.header-nav__link:focus-visible::after {
  width: 100%;
}

/* Theme Toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  transition: border-color var(--duration-fast), transform var(--duration-fast);
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  border-color: var(--accent);
  transform: scale(1.05);
}

.theme-toggle__icon {
  width: 18px;
  height: 18px;
  fill: var(--text-secondary);
  transition: transform var(--duration-normal) var(--ease-out-expo),
              opacity var(--duration-fast);
}

.theme-toggle__icon--sun {
  display: none;
}

[data-theme="light"] .theme-toggle__icon--moon { display: none; }
[data-theme="light"] .theme-toggle__icon--sun { display: block; }

/* Connect Button */
.btn-connect {
  font-family: var(--font-body);
  font-size: var(--fs-small);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.6em 1.5em;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast),
              transform var(--duration-fast),
              box-shadow var(--duration-fast);
}

.btn-connect:hover,
.btn-connect:focus-visible {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  width: 32px;
  height: 24px;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
}

.mobile-menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  transition: transform var(--duration-fast) var(--ease-out-expo),
              opacity var(--duration-fast);
  transform-origin: center;
}

.mobile-menu-toggle.is-active span:nth-child(1) {
  transform: translateY(11px) rotate(45deg);
}
.mobile-menu-toggle.is-active span:nth-child(2) {
  opacity: 0;
}
.mobile-menu-toggle.is-active span:nth-child(3) {
  transform: translateY(-11px) rotate(-45deg);
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }

  .header-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--duration-normal) var(--ease-out-expo);
    z-index: 999;
  }

  .header-nav.is-open {
    transform: translateX(0);
  }

  .header-nav__list {
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
  }

  .header-nav__link {
    font-size: 1.2rem;
  }
}

/* ============================================================
   5. HERO SECTION
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-height) + var(--space-lg)) 0 var(--space-xl);
  position: relative;
  overflow: hidden;
}

.hero__label {
  font-family: var(--font-body);
  font-size: var(--fs-label);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: 0.5em;
}

.hero__label::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--text-secondary);
}

.hero__title-wrap {
  position: relative;
  margin-bottom: var(--space-lg);
}

.hero__title {
  font-family: var(--font-hero);
  font-size: var(--fs-hero);
  color: var(--text-primary);
  line-height: 0.9;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.hero__name {
  font-family: var(--font-script);
  color: var(--accent);
  font-size: var(--fs-script);
  position: absolute;
  right: 0;
  top: 20%;
  transform: rotate(-5deg);
  font-weight: 700;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--text-body);
  max-width: 750px;
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-size: var(--fs-small);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 1em 2em;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-in-out);
  align-self: flex-start;
}

.hero__cta:hover,
.hero__cta:focus-visible {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.hero__cta-arrow {
  transition: transform var(--duration-fast);
}

.hero__cta:hover .hero__cta-arrow {
  transform: translateX(4px);
}

/* ============================================================
   6. ABOUT / PROFILE SECTION
   ============================================================ */
.about {
  padding: var(--space-section) 0;
  position: relative;
}

.about__heading {
  font-family: var(--font-heading);
  font-size: var(--fs-section);
  color: var(--text-primary);
  text-transform: uppercase;
  line-height: 0.95;
  margin-bottom: var(--space-lg);
}

.about__bio {
  font-size: var(--fs-body);
  color: var(--text-body);
  max-width: 680px;
  line-height: 1.85;
  margin-bottom: var(--space-xl);
}

.about__columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

@media (max-width: 640px) {
  .about__columns {
    grid-template-columns: 1fr;
  }
}

.about__column-title {
  font-family: var(--font-body);
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border);
}

.about__column-list {
  font-size: var(--fs-body);
  color: var(--text-body);
  line-height: 2;
}

.about__column-list li::before {
  content: '• ';
  color: var(--text-muted);
}

/* 3D Wireframe Decoration */
.wireframe-decoration {
  position: absolute;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}

.wireframe-decoration--right {
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: clamp(200px, 30vw, 400px);
  height: clamp(200px, 30vw, 400px);
}

.wireframe-decoration--left {
  left: -5%;
  top: 30%;
  width: clamp(250px, 35vw, 500px);
  height: clamp(250px, 35vw, 500px);
}

/* ============================================================
   7. DESIGN PHILOSOPHY / CORE EXPERTISE
   ============================================================ */
.philosophy {
  padding: var(--space-section) 0;
  position: relative;
}

.philosophy__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  margin-bottom: var(--space-xl);
}

@media (max-width: 768px) {
  .philosophy__layout {
    grid-template-columns: 1fr;
  }
}

.philosophy__heading {
  font-family: var(--font-heading);
  font-size: var(--fs-section);
  color: var(--text-primary);
  text-transform: uppercase;
  line-height: 0.95;
}

.philosophy__text {
  font-size: var(--fs-body);
  color: var(--text-body);
  line-height: 1.85;
}

.philosophy__skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
}

.skill-card {
  padding: var(--space-md);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast), transform var(--duration-fast);
  background: var(--bg-secondary);
}

.skill-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.skill-card__title {
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xs);
}

.skill-card__desc {
  font-size: var(--fs-small);
  color: var(--text-muted);
  line-height: 1.6;
}

/* ============================================================
   8. FEATURED PROJECTS SECTION
   ============================================================ */
.projects {
  padding: var(--space-section) 0;
}

.projects__heading {
  font-family: var(--font-heading);
  font-size: var(--fs-section);
  color: var(--text-primary);
  text-transform: uppercase;
  line-height: 0.95;
  margin-bottom: var(--space-xl);
}

/* Accordion */
.accordion {
  border-top: 1px solid var(--border);
}

.accordion__item {
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 3rem);
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  text-align: left;
  cursor: pointer;
  transition: color var(--duration-fast);
  background: transparent;
  border: none;
}

.accordion__trigger:hover,
.accordion__trigger:focus-visible {
  color: var(--accent);
}

.accordion__trigger-icon {
  width: 24px;
  height: 24px;
  position: relative;
  flex-shrink: 0;
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.accordion__trigger-icon::before,
.accordion__trigger-icon::after {
  content: '';
  position: absolute;
  background: var(--text-primary);
  transition: transform var(--duration-normal) var(--ease-out-expo),
              background var(--duration-fast);
}

.accordion__trigger-icon::before {
  width: 100%;
  height: 2px;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}

.accordion__trigger-icon::after {
  width: 2px;
  height: 100%;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
}

.accordion__trigger:hover .accordion__trigger-icon::before,
.accordion__trigger:hover .accordion__trigger-icon::after {
  background: var(--accent);
}

.accordion__item.is-open .accordion__trigger-icon::after {
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}

.accordion__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-slow) var(--ease-out-expo),
              opacity var(--duration-normal) var(--ease-in-out);
  opacity: 0;
}

.accordion__item.is-open .accordion__panel {
  opacity: 1;
}

.accordion__content {
  padding: var(--space-md) 0 var(--space-xl);
}

/* Project Cards */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

@media (max-width: 640px) {
  .project-grid {
    grid-template-columns: 1fr;
  }
}

.project-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: transform var(--duration-fast), box-shadow var(--duration-fast),
              border-color var(--duration-fast);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
  border-color: var(--border);
}

.project-card__image {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-bottom: 1px solid var(--border-subtle);
}

.project-card__body {
  padding: var(--space-md);
}

.project-card__title {
  font-family: var(--font-body);
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.project-card__desc {
  font-size: var(--fs-small);
  color: var(--text-body);
  line-height: 1.7;
  margin-bottom: var(--space-sm);
}

.project-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.project-card__tag {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.25em 0.75em;
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
}

/* ============================================================
   9. CONTACT / LET'S TALK SECTION
   ============================================================ */
.contact {
  padding: var(--space-section) 0;
  position: relative;
}

.contact__heading {
  font-family: var(--font-heading);
  font-size: var(--fs-section);
  color: var(--text-primary);
  text-transform: uppercase;
  line-height: 0.95;
  margin-bottom: var(--space-lg);
}

.contact__text {
  font-size: var(--fs-body);
  color: var(--text-body);
  max-width: 680px;
  line-height: 1.85;
  margin-bottom: var(--space-xl);
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.contact__link-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-body);
  color: var(--text-secondary);
  transition: color var(--duration-fast);
}

.contact__link-item:hover {
  color: var(--accent);
}

.contact__link-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  fill: currentColor;
}

.contact__social {
  display: flex;
  gap: var(--space-md);
}

.contact__social-link {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--duration-fast), transform var(--duration-fast),
              background var(--duration-fast);
}

.contact__social-link:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  background: var(--accent);
  color: #fff;
}

.contact__social-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* ============================================================
   10. THANK YOU SECTION
   ============================================================ */
.thankyou {
  padding: var(--space-section) 0;
  text-align: center;
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.thankyou__heading {
  font-family: var(--font-heading);
  font-size: var(--fs-section);
  color: var(--text-primary);
  text-transform: uppercase;
  line-height: 0.95;
  margin-bottom: var(--space-md);
}

.thankyou__text {
  font-size: var(--fs-body);
  color: var(--text-body);
  max-width: 500px;
  margin-bottom: var(--space-lg);
}

.thankyou__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-size: var(--fs-small);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.8em 2em;
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast);
}

.thankyou__cta:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ============================================================
   11. FOOTER
   ============================================================ */
.site-footer {
  padding: var(--space-xl) 0 var(--space-lg);
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

@media (max-width: 768px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

.footer-brand__name {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--text-primary);
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.footer-brand__name span {
  font-family: var(--font-script);
  color: var(--accent);
  text-transform: none;
}

.footer-brand__tagline {
  font-size: var(--fs-small);
  color: var(--text-muted);
  max-width: 300px;
}

.footer-nav__title,
.footer-social__title {
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.footer-nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-nav__link {
  font-size: var(--fs-small);
  color: var(--text-muted);
  transition: color var(--duration-fast);
}

.footer-nav__link:hover {
  color: var(--text-primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
  font-size: var(--fs-small);
  color: var(--text-muted);
}

@media (max-width: 640px) {
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}

/* ============================================================
   12. SCROLL REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-reveal) var(--ease-out-expo),
              transform var(--duration-reveal) var(--ease-out-expo);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity var(--duration-reveal) var(--ease-out-expo),
              transform var(--duration-reveal) var(--ease-out-expo);
}

.reveal--left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal--right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity var(--duration-reveal) var(--ease-out-expo),
              transform var(--duration-reveal) var(--ease-out-expo);
}

.reveal--right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal--scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity var(--duration-reveal) var(--ease-out-expo),
              transform var(--duration-reveal) var(--ease-out-expo);
}

.reveal--scale.is-visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger delays */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* Typography reveal */
@keyframes titleReveal {
  from {
    opacity: 0;
    transform: translateY(100%);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.title-reveal {
  overflow: hidden;
}

.title-reveal__inner {
  display: inline-block;
  opacity: 0;
  transform: translateY(100%);
}

.title-reveal__inner.is-visible {
  animation: titleReveal var(--duration-reveal) var(--ease-out-expo) forwards;
}

/* ============================================================
   13. THEME TRANSITION OVERLAY
   ============================================================ */
.theme-transition-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  z-index: 9999;
  pointer-events: none;
  transform: scale(0);
  opacity: 0;
}

.theme-transition-overlay.is-animating {
  animation: themeSpread 0.8s var(--ease-out-expo) forwards;
}

@keyframes themeSpread {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(3);
    opacity: 0;
  }
}

/* ============================================================
   14. WIREFRAME 3D CSS DECORATIONS
   ============================================================ */
.wireframe-globe {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 1px solid var(--wireframe-cyan);
  position: relative;
  animation: wireframeRotate 20s linear infinite;
}

.wireframe-globe::before,
.wireframe-globe::after {
  content: '';
  position: absolute;
  inset: 10%;
  border-radius: 50%;
  border: 1px solid var(--wireframe-cyan);
}

.wireframe-globe::before {
  transform: rotateY(60deg);
}

.wireframe-globe::after {
  transform: rotateY(-60deg);
}

@keyframes wireframeRotate {
  from { transform: rotateY(0deg); }
  to { transform: rotateY(360deg); }
}

.wireframe-mesh {
  width: 100%;
  height: 100%;
  position: relative;
}

.wireframe-mesh svg {
  width: 100%;
  height: 100%;
  stroke: var(--wireframe-grey);
  fill: none;
  stroke-width: 0.5;
}

/* ============================================================
   15. PREFERS 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;
  }

  .reveal,
  .reveal--left,
  .reveal--right,
  .reveal--scale {
    opacity: 1;
    transform: none;
  }

  .title-reveal__inner {
    opacity: 1;
    transform: none;
  }
}

/* ============================================================
   16. PRINT STYLES
   ============================================================ */
@media print {
  body::before {
    display: none;
  }

  .site-header,
  .theme-toggle,
  .mobile-menu-toggle {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  .section-heading,
  .hero__title,
  .about__heading,
  .philosophy__heading,
  .projects__heading,
  .contact__heading {
    color: #000;
  }
}
