/* ============================================================
   YEET.PW — Main Stylesheet
   Dark-mode-first, mobile-first, performance-optimized
   ============================================================ */

/* ----------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   ---------------------------------------------------------- */
:root {
  /* --- Colors: Dark theme (default) --- */
  --clr-bg:            #050505;
  --clr-bg-elevated:   #0a0a0a;
  --clr-bg-card:       #0f0f0f;
  --clr-bg-card-hover: #141414;
  --clr-border:        rgba(255, 255, 255, 0.06);
  --clr-border-hover:  rgba(255, 255, 255, 0.12);
  --clr-text:          #f0f0f0;
  --clr-text-muted:    #888;
  --clr-text-dim:      #555;
  --clr-primary:       #00ff88;
  --clr-primary-dim:   rgba(0, 255, 136, 0.15);
  --clr-secondary:     #ff3366;
  --clr-secondary-dim: rgba(255, 51, 102, 0.15);
  --clr-accent:        #7b2fff;
  --clr-accent-dim:    rgba(123, 47, 255, 0.15);
  --clr-gradient-1:    #00ff88;
  --clr-gradient-2:    #00d4ff;
  --clr-gradient-3:    #7b2fff;

  /* --- Typography --- */
  --font-display: 'Inter', 'SF Pro Display', system-ui, -apple-system, sans-serif;
  --font-body:    'Inter', 'SF Pro Text', system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;

  /* --- Spacing scale (4px base) --- */
  --space-1:  0.25rem;  /*  4px */
  --space-2:  0.5rem;   /*  8px */
  --space-3:  0.75rem;  /* 12px */
  --space-4:  1rem;     /* 16px */
  --space-5:  1.25rem;  /* 20px */
  --space-6:  1.5rem;   /* 24px */
  --space-8:  2rem;     /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */

  /* --- Layout --- */
  --max-width:     1200px;
  --nav-height:    4rem;
  --radius-sm:     6px;
  --radius-md:     12px;
  --radius-lg:     20px;
  --radius-xl:     28px;
  --radius-full:   9999px;

  /* --- Shadows --- */
  --shadow-sm:  0 1px 2px rgba(0, 0, 0, 0.6);
  --shadow-md:  0 4px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg:  0 8px 48px rgba(0, 0, 0, 0.6);
  --shadow-glow-primary:   0 0 40px rgba(0, 255, 136, 0.15);
  --shadow-glow-secondary: 0 0 40px rgba(255, 51, 102, 0.15);

  /* --- Transitions --- */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:   cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring:   cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-base: 300ms;
  --duration-slow: 500ms;
}

/* --- Light theme overrides --- */
[data-theme="light"] {
  --clr-bg:            #fafafa;
  --clr-bg-elevated:   #f0f0f0;
  --clr-bg-card:       #ffffff;
  --clr-bg-card-hover: #f5f5f5;
  --clr-border:        rgba(0, 0, 0, 0.08);
  --clr-border-hover:  rgba(0, 0, 0, 0.15);
  --clr-text:          #111;
  --clr-text-muted:    #666;
  --clr-text-dim:      #999;
  --clr-primary:       #00a85a;
  --clr-primary-dim:   rgba(0, 168, 90, 0.1);
  --clr-secondary:     #d42a55;
  --clr-secondary-dim: rgba(212, 42, 85, 0.1);
  --clr-accent:        #6929cc;
  --clr-accent-dim:    rgba(105, 41, 204, 0.1);
  --shadow-sm:  0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md:  0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg:  0 8px 48px rgba(0, 0, 0, 0.1);
  --shadow-glow-primary:   0 0 40px rgba(0, 168, 90, 0.12);
  --shadow-glow-secondary: 0 0 40px rgba(212, 42, 85, 0.1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--clr-text);
  background: var(--clr-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background var(--duration-base) var(--ease-in-out),
              color var(--duration-base) var(--ease-in-out);
}

/* Focus styles */
:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Selection */
::selection {
  background: var(--clr-primary);
  color: #000;
}

/* ----------------------------------------------------------
   UTILITY CLASSES
   ---------------------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.text-gradient {
  background: linear-gradient(135deg, var(--clr-gradient-1), var(--clr-gradient-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ----------------------------------------------------------
   SCROLL-TRIGGERED REVEAL ANIMATIONS
   ---------------------------------------------------------- */
.reveal-up,
.reveal-up-delay,
.reveal-up-delay-2,
.reveal-up-delay-3,
.reveal-up-delay-4 {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s var(--ease-out-expo),
              transform 0.7s var(--ease-out-expo);
}

.reveal-up-delay   { transition-delay: 0.1s; }
.reveal-up-delay-2 { transition-delay: 0.2s; }
.reveal-up-delay-3 { transition-delay: 0.35s; }
.reveal-up-delay-4 { transition-delay: 0.5s; }

.reveal-up.revealed,
.reveal-up-delay.revealed,
.reveal-up-delay-2.revealed,
.reveal-up-delay-3.revealed,
.reveal-up-delay-4.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Section padding */
.section {
  padding: var(--space-24) 0;
}

/* Section header shared styles */
.section__header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-16);
}

.section__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-primary);
  background: var(--clr-primary-dim);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.section__tag--dark {
  color: #00ff88;
  background: rgba(0, 255, 136, 0.12);
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
  color: var(--clr-text);
}

.section__subtitle {
  font-size: 1.125rem;
  color: var(--clr-text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ----------------------------------------------------------
   NAVIGATION
   ---------------------------------------------------------- */
.nav-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: background var(--duration-base) var(--ease-in-out),
              box-shadow var(--duration-base) var(--ease-in-out);
}

.nav-header.scrolled {
  background: var(--clr-bg-elevated);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--clr-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* Logo */
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  z-index: 10;
}

.nav__logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--clr-text);
  transition: color var(--duration-fast);
}

.nav__logo-dot {
  width: 8px;
  height: 8px;
  background: var(--clr-primary);
  border-radius: 50%;
  animation: logoPulse 2s var(--ease-in-out) infinite;
}

@keyframes logoPulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--clr-primary); }
  50%      { box-shadow: 0 0 12px 2px var(--clr-primary); }
}

/* Nav links — desktop */
.nav__links {
  display: none;
  list-style: none;
  align-items: center;
  gap: var(--space-1);
}

.nav__link {
  display: inline-block;
  padding: var(--space-2) var(--space-3);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast), background var(--duration-fast);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--clr-text);
  background: var(--clr-border);
}

.nav__link--cta {
  color: var(--clr-primary);
  font-weight: 600;
  margin-left: var(--space-2);
}

.nav__link--cta:hover {
  background: var(--clr-primary-dim);
}

/* Nav actions */
.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--clr-text-muted);
  cursor: pointer;
  transition: color var(--duration-fast),
              border-color var(--duration-fast),
              background var(--duration-fast);
}

.theme-toggle:hover {
  color: var(--clr-text);
  border-color: var(--clr-border-hover);
  background: var(--clr-bg-card);
}

/* Show correct icon based on theme */
[data-theme="dark"] .theme-toggle__icon--sun,
[data-theme="light"] .theme-toggle__icon--moon {
  display: none;
}

[data-theme="dark"] .theme-toggle__icon--moon,
[data-theme="light"] .theme-toggle__icon--sun {
  display: block;
}

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  z-index: 10;
  transition: border-color var(--duration-fast);
}

.hamburger:hover {
  border-color: var(--clr-border-hover);
}

.hamburger__line {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 1px;
  transition: transform var(--duration-base) var(--ease-in-out),
              opacity var(--duration-fast);
}

/* Hamburger active state */
.hamburger.active .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.active .hamburger__line:nth-child(2) {
  opacity: 0;
}
.hamburger.active .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-bg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-in-out);
}

.mobile-menu.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu__links {
  list-style: none;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-menu__link {
  display: block;
  padding: var(--space-3) var(--space-8);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clr-text-muted);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.mobile-menu__link:hover {
  color: var(--clr-text);
}

.mobile-menu__link--cta {
  color: var(--clr-primary);
  margin-top: var(--space-4);
}

/* ----------------------------------------------------------
   HERO SECTION
   ---------------------------------------------------------- */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding: var(--nav-height) var(--space-6) var(--space-12);
  overflow: hidden;
}

.hero__particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

/* Badge */
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-primary);
  background: var(--clr-primary-dim);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-8);
  border: 1px solid rgba(0, 255, 136, 0.2);
}

.hero__badge-pulse {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--clr-primary);
  border-radius: 50%;
  animation: badgePulse 2s var(--ease-in-out) infinite;
}

@keyframes badgePulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.4; transform: scale(1.3); }
}

/* Title */
.hero__title {
  margin-bottom: var(--space-6);
}

.hero__title-line {
  display: block;
}

.hero__title-line--main {
  font-family: var(--font-display);
  font-size: clamp(5rem, 15vw, 12rem);
  font-weight: 900;
  line-height: 0.85;
  letter-spacing: -0.05em;
  color: var(--clr-text);
  transition: color var(--duration-base);
}

.hero__title-line--sub {
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--clr-text-muted);
  letter-spacing: -0.02em;
  margin-top: var(--space-3);
}

/* Per-character animation for the YEET text */
.hero__char {
  display: inline-block;
  animation: charPopIn 0.6s var(--ease-spring) both;
  animation-delay: calc(var(--i) * 0.12s + 0.3s);
}

.hero__char:hover {
  color: var(--clr-primary);
  transition: color 0.1s;
}

@keyframes charPopIn {
  0%   { opacity: 0; transform: translateY(60px) scale(0.5); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

/* Description */
.hero__desc {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--clr-text-muted);
  max-width: 560px;
  margin: 0 auto var(--space-10);
  line-height: 1.7;
}

.hero__desc em {
  font-style: normal;
  font-weight: 700;
  color: var(--clr-text);
}

/* Actions */
.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-16);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-spring),
              box-shadow var(--duration-base),
              background var(--duration-base),
              border-color var(--duration-base);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
}

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

.btn--primary {
  background: var(--clr-primary);
  color: #000;
  box-shadow: var(--shadow-glow-primary);
}

.btn--primary:hover {
  box-shadow: 0 0 60px rgba(0, 255, 136, 0.3);
}

.btn--ghost {
  background: transparent;
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
}

.btn--ghost:hover {
  border-color: var(--clr-border-hover);
  background: var(--clr-bg-card);
}

/* Scroll indicator */
.scroll-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.scroll-indicator__text {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-text-dim);
}

.scroll-indicator__line {
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(
    to bottom,
    var(--clr-text-dim),
    transparent
  );
  animation: scrollPulse 2s var(--ease-in-out) infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50%      { opacity: 1; transform: scaleY(1.3); }
}

/* Hero gradients */
.hero__gradient {
  position: absolute;
  left: 0;
  right: 0;
  height: 200px;
  pointer-events: none;
  z-index: 1;
}

.hero__gradient--top {
  top: 0;
  background: linear-gradient(to bottom, var(--clr-bg), transparent);
}

.hero__gradient--bottom {
  bottom: 0;
  background: linear-gradient(to top, var(--clr-bg), transparent);
}

/* ----------------------------------------------------------
   ABOUT SECTION
   ---------------------------------------------------------- */
.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  max-width: 900px;
  margin: 0 auto;
}

/* Stat cards */
.stat-card {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--duration-base),
              transform var(--duration-fast);
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--clr-primary);
}

.stat-card__number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1;
  color: var(--clr-text);
  letter-spacing: -0.04em;
}

.stat-card__suffix {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--clr-primary);
  margin-left: 2px;
}

.stat-card__label {
  display: block;
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  margin-top: var(--space-2);
}

/* Story card */
.about__story {
  padding: var(--space-8);
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  grid-column: 1 / -1;
}

.about__story-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--clr-primary-dim);
  border-radius: var(--radius-md);
  color: var(--clr-primary);
  margin-bottom: var(--space-4);
}

.about__story-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.about__story-text {
  color: var(--clr-text-muted);
  line-height: 1.7;
}

.about__story-text em {
  font-style: normal;
  font-weight: 600;
  color: var(--clr-text);
}

/* ----------------------------------------------------------
   FEATURES SECTION
   ---------------------------------------------------------- */
.features {
  background: var(--clr-bg-elevated);
}

.features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

/* Feature cards */
.feature-card {
  position: relative;
  padding: var(--space-8);
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-spring),
              border-color var(--duration-base),
              background var(--duration-base),
              box-shadow var(--duration-base);
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    400px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(0, 255, 136, 0.04),
    transparent 60%
  );
  opacity: 0;
  transition: opacity var(--duration-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 255, 136, 0.3);
  background: var(--clr-bg-card-hover);
  box-shadow: var(--shadow-glow-primary);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card:focus-visible {
  border-color: var(--clr-primary);
  box-shadow: var(--shadow-glow-primary);
}

.feature-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--clr-primary-dim);
  border-radius: var(--radius-md);
  color: var(--clr-primary);
  margin-bottom: var(--space-4);
}

.feature-card__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.feature-card__text {
  font-size: 0.9375rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
  margin-bottom: var(--space-4);
}

.feature-card__metric {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-primary);
  padding: var(--space-1) var(--space-3);
  border: 1px solid rgba(0, 255, 136, 0.2);
  border-radius: var(--radius-full);
}

/* ----------------------------------------------------------
   SHOWCASE / BENTO GALLERY
   ---------------------------------------------------------- */
.showcase__bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  grid-auto-rows: 250px;
}

/* Bento cards */
.bento-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-spring);
}

.bento-card:hover {
  transform: scale(1.02);
}

.bento-card:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 4px;
}

/* Generated gradient media placeholders */
.bento-card__media {
  width: 100%;
  height: 100%;
  position: relative;
}

.bento-card__media--1 {
  background:
    linear-gradient(135deg, #0a0a2e 0%, #1a0a3e 30%, #0a2a1e 70%, #050510 100%);
  background-size: 200% 200%;
  animation: bgShift 8s ease-in-out infinite alternate;
}

.bento-card__media--2 {
  background:
    linear-gradient(135deg, #0a0a0a 0%, #0f1a0a 40%, #0a1a1a 100%);
}

.bento-card__media--3 {
  background:
    linear-gradient(135deg, #1a0a2e 0%, #0a0a2e 50%, #0a1a2e 100%);
}

.bento-card__media--4 {
  background:
    linear-gradient(135deg, #0a1a0a 0%, #0a0a1a 50%, #1a0a0a 100%);
}

.bento-card__media--5 {
  background:
    linear-gradient(135deg, #050510 0%, #0a0a0a 50%, #0a1a0a 100%);
}

@keyframes bgShift {
  0%   { background-position: 0% 0%; }
  100% { background-position: 100% 100%; }
}

/* Overlay */
.bento-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-6);
  background: linear-gradient(
    to top,
    rgba(5, 5, 5, 0.95) 0%,
    rgba(5, 5, 5, 0.6) 40%,
    transparent 100%
  );
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-in-out);
}

.bento-card:hover .bento-card__overlay,
.bento-card:focus-visible .bento-card__overlay {
  opacity: 1;
}

.bento-card__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-primary);
  background: var(--clr-primary-dim);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-2);
  width: fit-content;
}

.bento-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-1);
}

.bento-card__desc {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
}

/* ----------------------------------------------------------
   TESTIMONIALS SECTION
   ---------------------------------------------------------- */
.testimonials {
  background: var(--clr-bg-elevated);
}

.testimonials__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  max-width: 1000px;
  margin: 0 auto var(--space-16);
}

/* Testimonial cards */
.testimonial-card {
  position: relative;
  padding: var(--space-8);
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  transition: transform var(--duration-fast) var(--ease-spring),
              border-color var(--duration-base);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  border-color: var(--clr-border-hover);
}

.testimonial-card::before {
  content: '\201C';
  position: absolute;
  top: var(--space-4);
  right: var(--space-6);
  font-family: var(--font-display);
  font-size: 4rem;
  line-height: 1;
  color: var(--clr-primary);
  opacity: 0.15;
}

.testimonial-card__stars {
  color: var(--clr-primary);
  font-size: 1rem;
  margin-bottom: var(--space-4);
}

.testimonial-card__quote {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--clr-text-muted);
  margin-bottom: var(--space-6);
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  flex-shrink: 0;
}

.testimonial-card__avatar--1 {
  background: linear-gradient(135deg, #00ff88, #00d4ff);
}

.testimonial-card__avatar--2 {
  background: linear-gradient(135deg, #ff3366, #ff8800);
}

.testimonial-card__avatar--3 {
  background: linear-gradient(135deg, #7b2fff, #00d4ff);
}

.testimonial-card__name {
  display: block;
  font-style: normal;
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--clr-text);
}

.testimonial-card__role {
  display: block;
  font-size: 0.8125rem;
  color: var(--clr-text-muted);
}

/* Trust logos */
.testimonials__logos {
  text-align: center;
}

.testimonials__logos-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-text-dim);
  margin-bottom: var(--space-6);
}

.testimonials__logos-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-8) var(--space-12);
}

.testimonials__logo {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--clr-text-dim);
  transition: color var(--duration-fast);
  user-select: none;
}

.testimonials__logo:hover {
  color: var(--clr-text-muted);
}

/* ----------------------------------------------------------
   CTA SECTION
   ---------------------------------------------------------- */
.cta__wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
  padding: var(--space-16);
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
}

.cta__wrapper::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 255, 136, 0.06), transparent 70%);
  pointer-events: none;
}

.cta__content {
  position: relative;
  z-index: 1;
}

.cta__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
}

.cta__text {
  font-size: 1.0625rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-8);
  max-width: 540px;
}

/* Email form */
.cta__form {
  max-width: 500px;
  margin-bottom: var(--space-4);
}

.cta__input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  position: relative;
}

.cta__input {
  flex: 1;
  padding: var(--space-4) var(--space-6);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--clr-text);
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-full);
  outline: none;
  transition: border-color var(--duration-fast),
              box-shadow var(--duration-fast);
}

.cta__input::placeholder {
  color: var(--clr-text-dim);
}

.cta__input:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px var(--clr-primary-dim);
}

.cta__input.error {
  border-color: var(--clr-secondary);
  box-shadow: 0 0 0 3px var(--clr-secondary-dim);
}

.cta__submit {
  justify-content: center;
}

.cta__submit.submitting .cta__submit-text {
  opacity: 0;
}

.cta__submit.submitting .cta__submit-loading {
  display: flex;
}

.cta__submit-loading {
  display: none;
  position: absolute;
}

.cta__spinner {
  display: block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(0, 0, 0, 0.2);
  border-top-color: #000;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

.cta__form-message {
  font-size: 0.875rem;
  margin-top: var(--space-3);
  min-height: 1.5em;
}

.cta__form-message.success {
  color: var(--clr-primary);
}

.cta__form-message.error {
  color: var(--clr-secondary);
}

.cta__subtext {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--clr-text-dim);
}

/* CTA visual — orbit animation */
.cta__visual {
  display: none;
  place-items: center;
}

.cta__orbit {
  position: relative;
  width: 200px;
  height: 200px;
}

.cta__orbit-ring {
  position: absolute;
  inset: 0;
  border: 1px solid var(--clr-border);
  border-radius: 50%;
  animation: orbitSpin 8s linear infinite;
}

.cta__orbit-ring:nth-child(2) {
  inset: 20px;
  animation-duration: 12s;
  animation-direction: reverse;
  border-color: rgba(0, 255, 136, 0.15);
}

.cta__orbit-ring:nth-child(3) {
  inset: 40px;
  animation-duration: 16s;
  border-color: rgba(255, 51, 102, 0.1);
}

.cta__orbit-core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  background: var(--clr-primary);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 40px rgba(0, 255, 136, 0.4);
  animation: corePulse 2s var(--ease-in-out) infinite;
}

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

@keyframes corePulse {
  0%, 100% { box-shadow: 0 0 20px rgba(0, 255, 136, 0.3); }
  50%      { box-shadow: 0 0 60px rgba(0, 255, 136, 0.6); }
}

/* ----------------------------------------------------------
   FOOTER
   ---------------------------------------------------------- */
.footer {
  padding: var(--space-16) 0 var(--space-8);
  border-top: 1px solid var(--clr-border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8) var(--space-4);
  margin-bottom: var(--space-12);
}

.footer__brand {
  grid-column: 1 / -1;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--clr-text);
  text-decoration: none;
}

.footer__tagline {
  color: var(--clr-text-muted);
  font-size: 0.9375rem;
  margin: var(--space-1) 0 var(--space-3);
}

.footer__copy {
  font-size: 0.8125rem;
  color: var(--clr-text-dim);
}

.footer__heading {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-text-dim);
  margin-bottom: var(--space-3);
}

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

.footer__link {
  font-size: 0.9375rem;
  color: var(--clr-text-muted);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.footer__link:hover {
  color: var(--clr-text);
}

.footer__bottom {
  text-align: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--clr-border);
  color: var(--clr-text-dim);
  font-size: 0.8125rem;
}

/* ----------------------------------------------------------
   RESPONSIVE BREAKPOINTS
   ---------------------------------------------------------- */

/* ≥ 480px — small phones landscape / large phones */
@media (min-width: 480px) {
  .cta__input-group {
    flex-direction: row;
  }

  .about__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ≥ 640px — tablets */
@media (min-width: 640px) {
  .section {
    padding: var(--space-24) 0;
  }

  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonial-card:last-child {
    grid-column: 1 / -1;
    max-width: 500px;
    justify-self: center;
  }

  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  .footer__brand {
    grid-column: auto;
  }
}

/* ≥ 768px — desktop nav visible */
@media (min-width: 768px) {
  .nav__links {
    display: flex;
  }

  .hamburger {
    display: none;
  }

  .showcase__bento {
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(3, 200px);
  }

  .bento-card--large {
    grid-column: span 2;
    grid-row: span 2;
  }

  .bento-card--wide {
    grid-column: span 2;
  }

  .bento-card--tall {
    grid-row: span 2;
  }
}

/* ≥ 1024px — larger desktops */
@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-8);
  }

  .features__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .testimonials__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .testimonial-card:last-child {
    grid-column: auto;
    max-width: none;
    justify-self: auto;
  }

  .cta__wrapper {
    grid-template-columns: 1fr 300px;
  }

  .cta__visual {
    display: grid;
  }

  .showcase__bento {
    grid-template-rows: repeat(3, 220px);
  }
}

/* ≥ 1280px */
@media (min-width: 1280px) {
  .showcase__bento {
    grid-template-rows: repeat(3, 260px);
  }
}

/* ----------------------------------------------------------
   REDUCED MOTION
   ---------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .hero__particles {
    display: none;
  }
}