/* ============================================================
   Clones PAW — Design System
   Based on design.md specification (https://pawbytes.io/id)
   ============================================================ */

/* ----- 1. CSS Custom Properties / Design Tokens ----- */
:root {
  /* Core brand colors */
  --color-brand-red: #fd3a25;
  --color-brand-red-gradient-start: #ea2b16;
  --color-brand-red-gradient-end: #ff3b26;
  --color-background-dark: #09090b;
  --color-background-dark-alt: #111827;
  --color-background-light: #f5f5f5;
  --color-surface-light: #f4f4f5;
  --color-surface-white: #fafafa;
  --color-text-primary: #09090b;
  --color-text-inverse: #edecec;
  --color-text-muted: #a1a1aa;
  --color-text-subtle: #71717a;
  --color-text-on-dark: #d4d4d8;
  --color-border-light: #e4e4e7;
  --color-border-muted: #d4d4d8;

  /* Overlay / glow colors */
  --color-glow-red-1: rgba(253, 58, 37, 0.1);
  --color-glow-red-2: rgba(253, 58, 37, 0.08);
  --color-glass-bg: rgba(255, 255, 255, 0.9);
  --color-glass-shadow: rgba(0, 0, 0, 0.1);

  /* Interactive */
  --interactive-bg: #272727;
  --interactive-bg-alt: #080808;
  --interactive-highlight: rgba(255, 255, 255, 0.3);
  --interactive-press: #e9e9e9;
  --color-shadow-knob: #2e2e2e;

  /* Typography */
  --font-primary: 'Urbanist', sans-serif;
  --font-secondary: 'Roboto', sans-serif;

  /* Spacing scale */
  --space-xs: 5px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 20px;
  --space-2xl: 24px;
  --space-3xl: 32px;

  /* Radius scale */
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-3xl: 40px;
  --radius-full: 99px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-btn-dark:
    rgb(8, 8, 8) 0px -3px 0px 0px inset,
    rgba(255, 255, 255, 0.3) 0px 1px 0px 0px inset,
    rgba(0, 0, 0, 0.12) 0px 2.77px 2.21px 0px,
    rgba(0, 0, 0, 0.13) 0px 6.65px 5.32px 0px,
    rgba(0, 0, 0, 0.133) 0px 12.52px 10.02px 0px,
    rgba(0, 0, 0, 0.14) 0px 22.34px 17.87px 0px,
    rgba(0, 0, 0, 0.15) 0px 41.1px 32.88px 0px,
    rgba(0, 0, 0, 0.16) 0px 100px 80px 0px;

  --shadow-btn-light:
    rgb(233, 233, 233) 0px -3px 0px 0px inset,
    rgba(255, 255, 255, 0.698) 0px 1px 0px 0px inset,
    rgba(0, 0, 0, 0.12) 0px 2.77px 2.21px 0px,
    rgba(0, 0, 0, 0.14) 0px 3px 3px 0px;

  --shadow-card:
    rgba(0, 0, 0, 0.06) 0px 7.77px 16px 0px,
    rgba(0, 0, 0, 0.1) 0px 3px 3px 0px,
    rgba(0, 0, 0, 0.05) 0px -8px 0px 0px inset,
    rgba(255, 255, 255, 0.6) 0px 4px 0px 0px inset;

  --shadow-red-glow:
    rgba(0, 0, 0, 0.086) 0px 3.44px 5.57px 0px,
    rgba(255, 59, 0, 0.165) 0px 22.91px 37.08px 0px,
    rgba(255, 59, 0, 0.05) 0px 76px 123px 0px,
    rgba(255, 59, 0, 0.1) 0px 5.05px 8.18px 0px;

  --shadow-go-top: rgba(255, 255, 255, 0.1) 0px 4px 20px 0px;
  --shadow-lang-active: rgba(0, 0, 0, 0.1) 0px 1px 3px 0px;

  --shadow-card-light:
    rgb(234, 234, 234) 0px -8px 0px 0px inset,
    rgba(255, 255, 255, 0.6) 0px 4px 0px 0px inset,
    rgba(0, 0, 0, 0.06) 0px 7.77px 2.21px 0px,
    rgba(0, 0, 0, 0.1) 0px 3px 3px 0px;

  /* Gradients */
  --gradient-btn-dark: radial-gradient(62.56% 62.56% at 28.14% -10.42%, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 100%), linear-gradient(0deg, #272727, #272727);
  --gradient-red: linear-gradient(0deg, #ea2b16 0%, #ff3b26 100%);
  --gradient-red-glass: linear-gradient(0deg, #ea2b16 0%, #ff3b26 100%), radial-gradient(62.56% 62.56% at 28.14% -10.42%, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 100%);
  --gradient-dark-glass: radial-gradient(62.56% 62.56% at 28.14% -10.42%, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 100%), linear-gradient(0deg, #18181b, #18181b);
  --gradient-red-corner-tr: radial-gradient(circle at 100% 0%, rgb(253, 58, 37) 0%, rgba(0, 0, 0, 0) 90%);
  --gradient-red-corner-br: radial-gradient(circle at 100% 100%, rgb(253, 58, 37) 0%, rgba(0, 0, 0, 0) 90%);
  --gradient-red-corner-bl: radial-gradient(circle at 0% 100%, rgb(253, 58, 37) 0%, rgba(0, 0, 0, 0) 90%);

  /* Effects */
  --blur-strong: blur(44px);
  --blur-moderate: blur(56px);

  /* Motion */
  --duration-fast: 0.3s;
  --duration-base: 0.6s;
  --duration-slow: 0.8s;
  --ease-exit: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ----- 2. Reset / Base ----- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  color: var(--color-text-primary);
  background-color: var(--color-background-dark);
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

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

input {
  font-family: inherit;
}

/* Focus ring for accessibility */
:focus-visible {
  outline: 2px solid var(--color-brand-red);
  outline-offset: 2px;
}

/* ----- 3. Skip Link ----- */
.skip-link {
  position: absolute;
  z-index: 9999;
  display: block;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-xs);
  background: var(--color-background-dark-alt);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  line-height: 20px;
  top: -100%;
  left: 16px;
  transition: top 0.3s ease;
}

.skip-link:focus {
  top: 16px;
}

/* ----- 4. Container ----- */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-2xl);
}

/* ----- 5. Header / Navigation ----- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(9, 9, 11, 0.85);
  backdrop-filter: var(--blur-strong);
  -webkit-backdrop-filter: var(--blur-strong);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.header.scrolled {
  background: rgba(9, 9, 11, 0.95);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px var(--space-2xl);
  gap: var(--space-2xl);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text-inverse);
  letter-spacing: -0.2px;
}

.logo-accent {
  color: var(--color-brand-red);
}

/* Nav */
.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-3xl);
}

.nav-link {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text-on-dark);
  transition: color 0.3s ease;
  position: relative;
  padding: 4px 0;
}

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

.nav-link:hover,
.nav-link:focus {
  color: #fff;
}

.nav-link:hover::after,
.nav-link:focus::after {
  width: 100%;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  gap: var(--space-xs);
  padding: 3px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-pill);
}

.lang-option {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  line-height: 20px;
  color: var(--color-text-on-dark);
  transition: background-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

.lang-option.active {
  background-color: var(--color-glass-bg);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-lang-active);
}

/* Buttons */
.tf-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
  padding: 14px 24px;
  border-radius: var(--radius-full);
  font-size: 16px;
  font-weight: 600;
  line-height: 24px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
  white-space: nowrap;
  cursor: pointer;
  position: relative;
}

.tf-btn--sm {
  padding: 8px 18px;
  font-size: 14px;
  line-height: 20px;
}

.tf-btn--primary {
  background: var(--gradient-red-glass);
  color: #fff;
  box-shadow: var(--shadow-red-glow);
}

.tf-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow:
    rgba(0, 0, 0, 0.086) 0px 3.44px 5.57px 0px,
    rgba(255, 59, 0, 0.25) 0px 22.91px 37.08px 0px,
    rgba(255, 59, 0, 0.08) 0px 76px 123px 0px;
}

.tf-btn--outline {
  background: transparent;
  color: var(--color-text-inverse);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.tf-btn--outline:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-2px);
}

.tf-btn--dark {
  background: var(--gradient-btn-dark);
  color: #fff;
  box-shadow: var(--shadow-btn-dark);
}

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

.tf-btn--full {
  width: 100%;
  justify-content: center;
}

.tf-btn svg {
  flex-shrink: 0;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.menu-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-inverse);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  background: rgba(9, 9, 11, 0.97);
  backdrop-filter: var(--blur-strong);
  -webkit-backdrop-filter: var(--blur-strong);
  padding: var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.mobile-nav[aria-hidden="false"] {
  display: block;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.mobile-nav-link {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-text-inverse);
  padding: var(--space-sm) 0;
  display: block;
}

/* ----- 6. Hero Section ----- */
.section-hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 100vh;
  padding: 120px var(--space-2xl) 80px;
  max-width: 1440px;
  margin: 0 auto;
  gap: var(--space-3xl);
  overflow: hidden;
}

.hero-content {
  flex: 1;
  max-width: 620px;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px 14px;
  background: rgba(253, 58, 37, 0.1);
  border: 1px solid rgba(253, 58, 37, 0.2);
  border-radius: var(--radius-pill);
  color: var(--color-brand-red);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: var(--space-2xl);
}

.hero-title {
  font-size: 64px;
  font-weight: 600;
  line-height: 68px;
  letter-spacing: -1.92px;
  color: var(--color-text-inverse);
  margin-bottom: var(--space-2xl);
}

.hero-title-line {
  display: block;
}

.hero-title-line--accent {
  color: var(--color-brand-red);
}

.hero-subtitle {
  font-size: 20px;
  font-weight: 400;
  line-height: 34px;
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-3xl);
  max-width: 540px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: 60px;
}

.hero-stats {
  display: flex;
  gap: var(--space-3xl);
  padding-top: var(--space-3xl);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hero-stat-value {
  font-size: 32px;
  font-weight: 700;
  line-height: 36px;
  color: var(--color-text-inverse);
}

.hero-stat-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
}

/* Hero Visual */
.hero-visual {
  flex: 1;
  position: relative;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-circle {
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: var(--gradient-dark-glass);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 120px rgba(253, 58, 37, 0.15);
  position: relative;
}

.hero-card {
  position: absolute;
  background: rgba(24, 24, 27, 0.9);
  backdrop-filter: var(--blur-strong);
  -webkit-backdrop-filter: var(--blur-strong);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  box-shadow: var(--shadow-card);
  animation: floatCard 4s ease-in-out infinite;
}

.hero-card-icon {
  font-size: 24px;
}

.hero-card-label {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-inverse);
}

.hero-card--1 {
  top: 8%;
  right: 5%;
  animation-delay: 0s;
}

.hero-card--2 {
  top: 45%;
  left: 0;
  animation-delay: 1.3s;
}

.hero-card--3 {
  bottom: 12%;
  right: 8%;
  animation-delay: 2.6s;
}

@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Hero Red Glow Corners */
.hero-glow {
  position: absolute;
  pointer-events: none;
  z-index: 1;
}

.hero-glow--tr {
  top: 0;
  right: 0;
  width: 600px;
  height: 600px;
  background: var(--gradient-red-corner-tr);
  opacity: 0.5;
}

.hero-glow--bl {
  bottom: 0;
  left: 0;
  width: 500px;
  height: 500px;
  background: var(--gradient-red-corner-bl);
  opacity: 0.3;
}

/* Scroll More */
.scroll-more {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 280px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  padding: var(--space-md);
  border-radius: 40px 40px 0px 0px;
  background: var(--color-text-inverse);
  color: var(--color-text-primary);
  font-size: 14px;
  font-weight: 600;
  transition: height 0.3s ease, padding 0.3s ease;
}

.scroll-more:hover {
  height: 64px;
  padding-top: 20px;
}

.scroll-more-icon {
  animation: iconBounce 2s linear infinite;
}

@keyframes iconBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

/* ----- 7. Section Base ----- */
.section {
  padding: 120px 0;
}

.section-light {
  background: var(--color-background-light);
  color: var(--color-text-primary);
}

.section-dark {
  background: var(--color-background-dark);
  color: var(--color-text-inverse);
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(253, 58, 37, 0.1);
  border-radius: var(--radius-pill);
  color: var(--color-brand-red);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: var(--space-lg);
}

.section-tag--dark {
  background: rgba(253, 58, 37, 0.15);
}

.section-title {
  font-size: 48px;
  font-weight: 600;
  line-height: 56px;
  letter-spacing: -0.96px;
  margin-bottom: var(--space-lg);
  color: var(--color-text-primary);
}

.section-title--light {
  color: var(--color-text-inverse);
}

.text-accent {
  color: var(--color-brand-red);
}

.section-desc {
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
  color: var(--color-text-subtle);
}

.section-desc--light {
  color: var(--color-text-muted);
}

/* ----- 8. Services Grid ----- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2xl);
}

.service-card {
  background: var(--color-surface-white);
  border-radius: var(--radius-3xl);
  padding: var(--space-3xl);
  box-shadow: var(--shadow-card-light);
  transition: transform 0.6s var(--ease-exit), box-shadow 0.6s var(--ease-exit);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow:
    rgba(0, 0, 0, 0.08) 0px 7.77px 16px 0px,
    rgba(0, 0, 0, 0.12) 0px 3px 3px 0px;
}

.service-card-icon {
  margin-bottom: var(--space-xl);
}

.service-card-title {
  font-size: 24px;
  font-weight: 600;
  line-height: 32px;
  margin-bottom: var(--space-md);
}

.service-card-desc {
  font-size: 16px;
  font-weight: 400;
  line-height: 26px;
  color: var(--color-text-subtle);
  margin-bottom: var(--space-xl);
  flex: 1;
}

.service-card-link {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-brand-red);
  transition: gap 0.3s ease;
}

.service-card-link:hover {
  text-decoration: underline;
}

/* ----- 9. Process Grid ----- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2xl);
}

.process-card {
  background: var(--gradient-dark-glass);
  border-radius: var(--radius-3xl);
  padding: var(--space-3xl);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: transform 0.6s var(--ease-exit), box-shadow 0.6s var(--ease-exit);
  display: flex;
  flex-direction: column;
}

.process-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.12);
}

.process-step {
  font-size: 48px;
  font-weight: 700;
  color: var(--color-brand-red);
  line-height: 1;
  margin-bottom: var(--space-lg);
  opacity: 0.4;
}

.process-card-title {
  font-size: 20px;
  font-weight: 600;
  line-height: 28px;
  color: var(--color-text-inverse);
  margin-bottom: var(--space-md);
}

.process-card-desc {
  font-size: 15px;
  font-weight: 400;
  line-height: 24px;
  color: var(--color-text-muted);
}

/* ----- 10. About Section ----- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-content {
  max-width: 560px;
}

.about-text {
  font-size: 16px;
  font-weight: 400;
  line-height: 28px;
  color: var(--color-text-subtle);
  margin-bottom: var(--space-xl);
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-2xl);
}

.about-feature {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 15px;
  font-weight: 500;
}

.about-feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(253, 58, 37, 0.1);
  color: var(--color-brand-red);
  font-size: 12px;
  flex-shrink: 0;
}

.about-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.about-card {
  background: var(--color-surface-white);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl);
  box-shadow: var(--shadow-card-light);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: transform 0.6s var(--ease-exit);
}

.about-card:hover {
  transform: translateY(-4px);
}

.about-stat-value {
  font-size: 40px;
  font-weight: 700;
  color: var(--color-brand-red);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.about-stat-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-subtle);
}

/* ----- 11. CTA Section ----- */
.section-cta {
  position: relative;
  background: var(--color-background-dark);
  padding: 100px 0;
  text-align: center;
  overflow: hidden;
}

.cta-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
  margin: 0 auto;
}

.cta-title {
  font-size: 48px;
  font-weight: 600;
  line-height: 56px;
  letter-spacing: -0.96px;
  color: var(--color-text-inverse);
  margin-bottom: var(--space-xl);
}

.cta-desc {
  font-size: 18px;
  font-weight: 400;
  line-height: 28px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3xl);
}

.cta-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.cta-input {
  width: 100%;
  padding: 14px 20px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text-inverse);
  font-size: 16px;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.cta-input::placeholder {
  color: var(--color-text-subtle);
}

.cta-input:focus {
  outline: none;
  border-color: var(--color-brand-red);
  background: rgba(255, 255, 255, 0.08);
}

.cta-note {
  font-size: 13px;
  color: var(--color-text-subtle);
}

/* ----- 12. Footer ----- */
.footer {
  background: var(--color-background-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 80px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-brand {
  max-width: 320px;
}

.footer-desc {
  font-size: 15px;
  line-height: 24px;
  color: var(--color-text-muted);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-xl);
}

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

.footer .social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-muted);
  transition: background 0.3s ease, color 0.3s ease;
}

.footer .social-link:hover {
  background: var(--color-brand-red);
  color: #fff;
}

.footer-heading {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: var(--space-xl);
}

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

.footer-nav a {
  font-size: 15px;
  color: var(--color-text-muted);
  transition: color 0.3s ease;
}

.footer-nav a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-3xl);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 14px;
  color: var(--color-text-subtle);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-2xl);
}

.footer-bottom-links a {
  color: var(--color-text-muted);
  transition: color 0.3s ease;
}

.footer-bottom-links a:hover {
  color: #fff;
}

/* ----- 13. Go Top Button ----- */
.go-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--color-background-dark-alt);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-go-top);
  transition: opacity 0.3s ease, transform 0.3s ease, background 0.3s ease;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
}

.go-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.go-top:hover {
  background: var(--color-brand-red);
  transform: translateY(-2px);
}

/* ----- 14. Toast ----- */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  z-index: 2000;
  padding: 14px 24px;
  border-radius: var(--radius-full);
  background: var(--gradient-dark-glass);
  color: var(--color-text-inverse);
  font-size: 14px;
  font-weight: 600;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: transform 0.3s var(--ease-exit);
  backdrop-filter: var(--blur-strong);
  -webkit-backdrop-filter: var(--blur-strong);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

.toast.success {
  border-color: rgba(34, 197, 94, 0.4);
}

.toast.error {
  border-color: rgba(253, 58, 37, 0.4);
}

/* ----- 15. Animations ----- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes move3 {
  0% { transform: translateX(0); }
  100% { transform: translateX(10px); }
}

[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-exit), transform 0.6s var(--ease-exit);
}

[data-animate].animated {
  opacity: 1;
  transform: translateY(0);
}

/* ----- 16. Responsive ----- */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 48px;
    line-height: 52px;
    letter-spacing: -1.44px;
  }

  .section-title {
    font-size: 36px;
    line-height: 44px;
  }

  .cta-title {
    font-size: 36px;
    line-height: 44px;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

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

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .nav,
  .header-actions {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .section-hero {
    flex-direction: column;
    padding: 100px var(--space-2xl) 80px;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-cta-group {
    justify-content: center;
    flex-wrap: wrap;
  }

  .hero-stats {
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-xl);
  }

  .hero-visual {
    min-height: 350px;
  }

  .hero-circle {
    width: 280px;
    height: 280px;
  }

  .section {
    padding: 80px 0;
  }

  .section-title {
    font-size: 32px;
    line-height: 40px;
  }

  .process-grid {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .go-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 36px;
    line-height: 40px;
    letter-spacing: -1.08px;
  }

  .hero-subtitle {
    font-size: 16px;
    line-height: 26px;
  }

  .section-title,
  .cta-title {
    font-size: 28px;
    line-height: 36px;
  }

  .container {
    padding: 0 var(--space-lg);
  }

  .hero-visual {
    min-height: 250px;
  }

  .hero-circle {
    width: 200px;
    height: 200px;
  }
}