/* ============================================================
   APEX DYNAMICS — THE APEX V1 | Design System & Styles
   ============================================================ */

/* — Google Fonts — */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

/* ——— Design Tokens ——— */
:root {
  /* Palette */
  --clr-bg:         #0a0a0c;
  --clr-surface:    #111114;
  --clr-surface-2:  #1a1a1f;
  --clr-surface-3:  #222228;
  --clr-border:     rgba(255, 255, 255, 0.06);
  --clr-border-hl:  rgba(255, 255, 255, 0.12);
  --clr-text:       #f0f0f2;
  --clr-text-dim:   #9a9aa8;
  --clr-text-muted: #6a6a78;
  --clr-accent:     #e63946;
  --clr-accent-glow: rgba(230, 57, 70, 0.35);
  --clr-white:      #ffffff;
  --clr-glass:      rgba(10, 10, 12, 0.55);
  --clr-glass-border: rgba(255, 255, 255, 0.08);

  /* Typography */
  --ff-display: 'Outfit', system-ui, sans-serif;
  --ff-body:    'Inter', system-ui, sans-serif;

  /* Spacing */
  --sp-xs:  0.25rem;
  --sp-sm:  0.5rem;
  --sp-md:  1rem;
  --sp-lg:  2rem;
  --sp-xl:  3rem;
  --sp-2xl: 5rem;
  --sp-3xl: 8rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --transition-fast: 200ms var(--ease-out-expo);
  --transition-base: 400ms var(--ease-out-expo);
  --transition-slow: 700ms var(--ease-out-expo);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-size: 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--clr-accent) var(--clr-bg);
}

body {
  font-family: var(--ff-body);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

/* ——— Scrollbar ——— */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--clr-bg);
}
::-webkit-scrollbar-thumb {
  background: var(--clr-accent);
  border-radius: 100px;
}

/* ============================================================
   [1] NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  background: var(--clr-glass);
  border-bottom: 1px solid var(--clr-glass-border);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.nav.scrolled {
  background: rgba(10, 10, 12, 0.82);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.nav__brand {
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  letter-spacing: -0.03em;
  color: var(--clr-white);
  text-transform: uppercase;
}

.nav__brand span {
  color: var(--clr-accent);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.5rem);
  list-style: none;
}

.nav__link {
  position: relative;
  font-family: var(--ff-body);
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-text-dim);
  padding: 0.4rem 0;
  transition: color var(--transition-fast);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--clr-accent);
  transition: width var(--transition-base);
}

.nav__link:hover {
  color: var(--clr-white);
}
.nav__link:hover::after {
  width: 100%;
}

/* Mobile Nav Toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-white);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.nav__toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.active span:nth-child(2) { opacity: 0; }
.nav__toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   [2] HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 10, 12, 0.4) 0%,
    rgba(10, 10, 12, 0.15) 40%,
    rgba(10, 10, 12, 0.6) 100%
  );
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 0 var(--sp-lg);
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--ff-body);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--sp-lg);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s var(--ease-out-expo) 0.3s forwards;
}

.hero__eyebrow::before {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background: var(--clr-accent);
}

.hero__title {
  font-family: var(--ff-display);
  font-weight: 900;
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--clr-white);
  margin-bottom: var(--sp-lg);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 1s var(--ease-out-expo) 0.5s forwards;
}

.hero__title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--clr-accent), #ff6b6b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-family: var(--ff-body);
  font-weight: 300;
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--clr-text-dim);
  max-width: 560px;
  margin: 0 auto var(--sp-xl);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s var(--ease-out-expo) 0.7s forwards;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-white);
  background: var(--clr-accent);
  padding: 1rem 2.2rem;
  border-radius: 100px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s var(--ease-out-expo) 0.9s forwards;
}

.hero__cta:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 40px var(--clr-accent-glow);
  background: #d62d3a;
}

.hero__cta svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}
.hero__cta:hover svg {
  transform: translateX(4px);
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--clr-text-muted);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeUp 1s var(--ease-out-expo) 1.3s forwards;
}

.hero__scroll-hint .mouse {
  width: 22px;
  height: 34px;
  border: 2px solid var(--clr-text-muted);
  border-radius: 12px;
  position: relative;
}
.hero__scroll-hint .mouse::before {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  background: var(--clr-accent);
  border-radius: 3px;
  animation: scrollPulse 1.5s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
  50%      { opacity: 0.3; transform: translateX(-50%) translateY(6px); }
}

/* ============================================================
   [3] SPECS / BENTO GRID
   ============================================================ */
.specs {
  position: relative;
  padding: var(--sp-3xl) clamp(1.5rem, 5vw, 4rem);
  overflow: hidden;
}

.specs__header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--sp-2xl);
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--ff-body);
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--sp-md);
}

.section-eyebrow::before,
.section-eyebrow::after {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--clr-accent);
}

.section-title {
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--clr-white);
  margin-bottom: var(--sp-md);
}

.section-subtitle {
  font-weight: 300;
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: var(--clr-text-dim);
  max-width: 550px;
  margin: 0 auto;
}

/* Bento Grid */
.bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: minmax(200px, auto);
  gap: var(--sp-md);
  max-width: 1280px;
  margin: 0 auto;
}

.bento__card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.bento__card:hover {
  transform: translateY(-4px);
  border-color: var(--clr-border-hl);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

/* Card Sizes */
.bento__card--wide   { grid-column: span 2; }
.bento__card--tall   { grid-row: span 2; }
.bento__card--hero   { grid-column: span 2; grid-row: span 2; }

/* Image Cards */
.bento__card--img {
  min-height: 280px;
}
.bento__card--img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.bento__card--img:hover img {
  transform: scale(1.05);
}

/* Stat Cards */
.bento__card--stat {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--sp-xl);
  background: linear-gradient(145deg, var(--clr-surface), var(--clr-surface-2));
}

.bento__stat-value {
  font-family: var(--ff-display);
  font-weight: 900;
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--clr-white) 30%, var(--clr-text-dim));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--sp-sm);
}

.bento__stat-label {
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--sp-sm);
}

.bento__stat-desc {
  font-weight: 300;
  font-size: 0.9rem;
  color: var(--clr-text-dim);
  line-height: 1.5;
}

/* Info Card */
.bento__card--info {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--sp-xl);
  background: linear-gradient(145deg, var(--clr-surface-2), var(--clr-surface));
}

.bento__info-title {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--clr-white);
  margin-bottom: var(--sp-sm);
}

.bento__info-text {
  font-weight: 300;
  font-size: 0.9rem;
  color: var(--clr-text-dim);
  line-height: 1.6;
}

.bento__info-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-top: var(--sp-md);
}
.bento__info-tag::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--clr-accent);
}

/* ============================================================
   [4] SCROLL TEARDOWN SECTION
   ============================================================ */
.teardown {
  position: relative;
  height: 500vh;
}

.teardown__sticky {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.teardown__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.teardown__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 10, 12, 0.25) 0%,
    rgba(10, 10, 12, 0.0) 30%,
    rgba(10, 10, 12, 0.0) 70%,
    rgba(10, 10, 12, 0.5) 100%
  );
  z-index: 1;
  pointer-events: none;
}

.teardown__progress {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 5;
  background: rgba(255, 255, 255, 0.06);
}
.teardown__progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--clr-accent), #ff6b6b);
  transition: width 60ms linear;
}

/* Floating Labels */
.teardown__label {
  position: absolute;
  z-index: 3;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s var(--ease-out-expo), transform 0.5s var(--ease-out-expo);
  pointer-events: none;
}

.teardown__label.visible {
  opacity: 1;
  transform: translateY(0);
}

.teardown__label-inner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(10, 10, 12, 0.6);
  border: 1px solid var(--clr-glass-border);
  border-radius: var(--radius-md);
  padding: 0.8rem 1.2rem;
}

.teardown__label-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--clr-accent);
  flex-shrink: 0;
  box-shadow: 0 0 12px var(--clr-accent-glow);
  animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
  0%, 100% { box-shadow: 0 0 8px var(--clr-accent-glow); }
  50%      { box-shadow: 0 0 20px var(--clr-accent-glow); }
}

.teardown__label-text {
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--clr-white);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.teardown__label-sub {
  font-family: var(--ff-body);
  font-weight: 300;
  font-size: 0.75rem;
  color: var(--clr-text-dim);
  text-transform: none;
  letter-spacing: normal;
}

/* Label positioning */
.teardown__label--tl { top: 20%; left: 8%; }
.teardown__label--tr { top: 18%; right: 8%; }
.teardown__label--ml { top: 50%; left: 6%; }
.teardown__label--mr { top: 45%; right: 6%; }
.teardown__label--bl { bottom: 22%; left: 10%; }
.teardown__label--br { bottom: 18%; right: 8%; }

/* ============================================================
   [5] ABOUT / BRAND HERITAGE
   ============================================================ */
.about {
  position: relative;
  padding: var(--sp-3xl) clamp(1.5rem, 5vw, 4rem);
  overflow: hidden;
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  max-width: 1280px;
  margin: 0 auto;
  align-items: center;
}

.about__text {
  padding-right: var(--sp-xl);
}

.about__title {
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--clr-white);
  margin-bottom: var(--sp-lg);
}

.about__title em {
  font-style: normal;
  color: var(--clr-accent);
}

.about__body p {
  font-weight: 300;
  font-size: clamp(0.95rem, 1.3vw, 1.05rem);
  color: var(--clr-text-dim);
  line-height: 1.8;
  margin-bottom: var(--sp-lg);
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-lg);
  margin-top: var(--sp-xl);
  padding-top: var(--sp-xl);
  border-top: 1px solid var(--clr-border);
}

.about__stat-num {
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  color: var(--clr-white);
  line-height: 1;
  margin-bottom: 0.3rem;
}

.about__stat-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
}

.about__image {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 3/4;
  max-height: 700px;
}

.about__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.about__image:hover img {
  transform: scale(1.04);
}

.about__image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10, 10, 12, 0.5) 100%);
  pointer-events: none;
}

/* ============================================================
   [6] FAQ SECTION
   ============================================================ */
.faq {
  position: relative;
  padding: var(--sp-3xl) clamp(1.5rem, 5vw, 4rem);
  background: var(--clr-surface);
}

.faq__container {
  max-width: 800px;
  margin: 0 auto;
}

.faq__header {
  text-align: center;
  margin-bottom: var(--sp-2xl);
}

.faq__item {
  border-bottom: 1px solid var(--clr-border);
}

.faq__item:first-child {
  border-top: 1px solid var(--clr-border);
}

.faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-lg) 0;
  cursor: pointer;
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--clr-white);
  list-style: none;
  transition: color var(--transition-fast);
}
.faq__item summary::-webkit-details-marker { display: none; }

.faq__item summary:hover {
  color: var(--clr-accent);
}

.faq__icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--clr-border-hl);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-base), background var(--transition-fast), border-color var(--transition-fast);
}

.faq__icon svg {
  width: 14px;
  height: 14px;
  stroke: var(--clr-text-dim);
  transition: stroke var(--transition-fast);
}

.faq__item[open] .faq__icon {
  transform: rotate(45deg);
  background: var(--clr-accent);
  border-color: var(--clr-accent);
}
.faq__item[open] .faq__icon svg {
  stroke: var(--clr-white);
}

.faq__answer {
  padding-bottom: var(--sp-lg);
  font-weight: 300;
  font-size: 0.95rem;
  color: var(--clr-text-dim);
  line-height: 1.7;
  max-width: 90%;
  animation: faqOpen 0.4s var(--ease-out-expo);
}

@keyframes faqOpen {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   [7] CONTACT / INQUIRY SECTION
   ============================================================ */
.contact {
  position: relative;
  padding: var(--sp-3xl) clamp(1.5rem, 5vw, 4rem);
  background: var(--clr-bg);
}

.contact__container {
  max-width: 680px;
  margin: 0 auto;
}

.contact__header {
  text-align: center;
  margin-bottom: var(--sp-2xl);
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: var(--sp-lg);
}

.form__group {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--sp-xs);
}

.form__label {
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-text-dim);
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 1rem 1.2rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  color: var(--clr-text);
  font-family: var(--ff-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--clr-text-muted);
}

.form__input:focus,
.form__textarea:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px var(--clr-accent-glow);
}

.form__input:invalid:not(:placeholder-shown),
.form__textarea:invalid:not(:placeholder-shown) {
  border-color: #ff4444;
  box-shadow: 0 0 0 3px rgba(255, 68, 68, 0.15);
}

.form__textarea {
  min-height: 140px;
  resize: vertical;
}

.form__error {
  font-size: 0.75rem;
  color: #ff4444;
  margin-top: 2px;
  display: none;
}

.form__error.visible {
  display: block;
  animation: faqOpen 0.3s var(--ease-out-expo);
}

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

.form__submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-white);
  background: var(--clr-accent);
  padding: 1.1rem 2.5rem;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  width: 100%;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.form__submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px var(--clr-accent-glow);
  background: #d62d3a;
}

.form__submit:active {
  transform: translateY(0);
}

.form__submit.success {
  background: #28a745;
  pointer-events: none;
}

/* ============================================================
   [8] FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--clr-border);
  padding: var(--sp-xl) clamp(1.5rem, 5vw, 4rem);
  background: var(--clr-bg);
}

.footer__inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-lg);
}

.footer__brand {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--clr-text-dim);
}
.footer__brand span {
  color: var(--clr-accent);
}

.footer__socials {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  list-style: none;
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--clr-border);
  color: var(--clr-text-dim);
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

.footer__social-link:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  background: rgba(230, 57, 70, 0.08);
}

.footer__social-link svg {
  width: 18px;
  height: 18px;
}

.footer__copy {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  text-align: center;
  width: 100%;
  margin-top: var(--sp-md);
  padding-top: var(--sp-md);
  border-top: 1px solid var(--clr-border);
}

/* ============================================================
   UTILITY ANIMATIONS
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(var(--fade-y, 20px)); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Scroll-driven reveal for sections */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.stagger > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}
.stagger.visible > * {
  opacity: 1;
  transform: translateY(0);
}
.stagger.visible > *:nth-child(1) { transition-delay: 0ms; }
.stagger.visible > *:nth-child(2) { transition-delay: 80ms; }
.stagger.visible > *:nth-child(3) { transition-delay: 160ms; }
.stagger.visible > *:nth-child(4) { transition-delay: 240ms; }
.stagger.visible > *:nth-child(5) { transition-delay: 320ms; }
.stagger.visible > *:nth-child(6) { transition-delay: 400ms; }
.stagger.visible > *:nth-child(7) { transition-delay: 480ms; }
.stagger.visible > *:nth-child(8) { transition-delay: 560ms; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .bento {
    grid-template-columns: repeat(2, 1fr);
  }
  .bento__card--hero {
    grid-column: span 2;
    grid-row: span 1;
  }
  .about__grid {
    grid-template-columns: 1fr;
  }
  .about__text {
    padding-right: 0;
    order: 2;
  }
  .about__image {
    order: 1;
    aspect-ratio: 16/9;
    max-height: 400px;
  }
  .teardown__label--ml,
  .teardown__label--mr {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav__links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    justify-content: center;
    background: rgba(10, 10, 12, 0.96);
    backdrop-filter: blur(24px);
    transition: right 0.4s var(--ease-out-expo);
    gap: 2rem;
  }
  .nav__links.open {
    right: 0;
  }
  .nav__toggle {
    display: flex;
  }
  .bento {
    grid-template-columns: 1fr;
  }
  .bento__card--wide,
  .bento__card--hero {
    grid-column: span 1;
  }
  .bento__card--tall,
  .bento__card--hero {
    grid-row: span 1;
  }
  .form__row {
    grid-template-columns: 1fr;
  }
  .about__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-md);
  }
  .teardown__label {
    display: none;
  }
  .teardown__label--tl,
  .teardown__label--br {
    display: block;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: clamp(2.2rem, 10vw, 3.5rem);
  }
  .about__stats {
    grid-template-columns: 1fr;
    gap: var(--sp-md);
    text-align: center;
  }
}

/* ============================================================
   LOADING SCREEN
   ============================================================ */
.loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--clr-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  transition: opacity 0.6s var(--ease-out-expo), visibility 0.6s;
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader__spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--clr-border);
  border-top-color: var(--clr-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loader__text {
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-text-dim);
}

.loader__progress {
  width: 200px;
  height: 2px;
  background: var(--clr-border);
  border-radius: 2px;
  overflow: hidden;
}
.loader__progress-bar {
  height: 100%;
  width: 0%;
  background: var(--clr-accent);
  transition: width 0.3s;
}