/* =========================================
   AntoVisuals — Design Tokens & Styles
   Modern & Bright with Orange/Blue accent
   ========================================= */

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

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Font Families */
  --font-display: 'Cabinet Grotesk', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;

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

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

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

/* ======== LIGHT MODE (default) ======== */
:root, [data-theme="light"] {
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-surface-2: #f5f5f5;
  --color-surface-offset: #eeeeee;
  --color-divider: #e0e0e0;
  --color-border: #d4d4d4;

  --color-text: #1a1a1a;
  --color-text-muted: #6b6b6b;
  --color-text-faint: #a0a0a0;
  --color-text-inverse: #ffffff;

  /* Primary: Orange (brand) */
  --color-primary: #e8730c;
  --color-primary-hover: #cf6509;
  --color-primary-active: #b55808;
  --color-primary-highlight: #fef3e8;

  /* Secondary: Blue (brand) */
  --color-secondary: #1a73e8;
  --color-secondary-hover: #1565c0;
  --color-secondary-active: #0d47a1;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
}

/* ======== DARK MODE ======== */
[data-theme="dark"] {
  --color-bg: #0f0f0f;
  --color-surface: #1a1a1a;
  --color-surface-2: #222222;
  --color-surface-offset: #2a2a2a;
  --color-divider: #333333;
  --color-border: #3d3d3d;

  --color-text: #e8e8e8;
  --color-text-muted: #999999;
  --color-text-faint: #666666;
  --color-text-inverse: #1a1a1a;

  --color-primary: #f59e3d;
  --color-primary-hover: #f7b05e;
  --color-primary-active: #e8730c;
  --color-primary-highlight: #2a2015;

  --color-secondary: #5a9cf5;
  --color-secondary-hover: #7ab4f8;
  --color-secondary-active: #1a73e8;

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

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0f0f0f;
    --color-surface: #1a1a1a;
    --color-surface-2: #222222;
    --color-surface-offset: #2a2a2a;
    --color-divider: #333333;
    --color-border: #3d3d3d;
    --color-text: #e8e8e8;
    --color-text-muted: #999999;
    --color-text-faint: #666666;
    --color-text-inverse: #1a1a1a;
    --color-primary: #f59e3d;
    --color-primary-hover: #f7b05e;
    --color-primary-active: #e8730c;
    --color-primary-highlight: #2a2015;
    --color-secondary: #5a9cf5;
    --color-secondary-hover: #7ab4f8;
    --color-secondary-active: #1a73e8;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
  }
}

/* ======== GLOBAL ELEMENTS ======== */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
a:hover { color: var(--color-primary-hover); }

.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

/* ======== HEADER ======== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition: box-shadow 0.3s var(--ease-out);
}
.header--scrolled {
  box-shadow: var(--shadow-sm);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-2);
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}
.lang-switch { display: flex; gap: 4px; align-items: center; margin-left: 8px; }
.lang-switch a { font-size: 13px; font-weight: 600; padding: 3px 8px; border-radius: 6px; text-decoration: none; color: var(--color-text-muted); transition: background 0.2s, color 0.2s; }
.lang-switch a:hover { color: var(--color-text); }
.lang-switch a.active { background: var(--color-primary); color: #fff; }
.header__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.header__logo-img {
  height: 120px;
  width: auto;
  object-fit: contain;
}
@media (max-width: 768px) {
  .header__logo-img { height: 120px; }
}

.nav { display: flex; align-items: center; gap: var(--space-6); }
.nav__link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
  position: relative;
}
.nav__link:hover, .nav__link--active {
  color: var(--color-text);
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width 0.3s var(--ease-out);
}
.nav__link:hover::after { width: 100%; }

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}
.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface-2);
}

/* Mobile Nav */
.mobile-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}
@media (max-width: 768px) {
  .nav { display: none; }
  .nav--open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-divider);
    padding: var(--space-4);
    gap: var(--space-4);
    box-shadow: var(--shadow-md);
  }
  .mobile-toggle { display: flex; }
}

/* ======== HERO ======== */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    oklch(0.15 0 0 / 0.75) 0%,
    oklch(0.15 0 0 / 0.5) 50%,
    oklch(0.15 0 0 / 0.3) 100%
  );
}
.hero__content {
  position: relative;
  z-index: 1;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-16) var(--space-4);
  color: #ffffff;
}
.hero__tagline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}
.hero__tagline::before {
  content: '';
  display: inline-block;
  width: 32px;
  height: 2px;
  background: var(--color-primary);
}
.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1.05;
  max-width: 14ch;
  margin-bottom: var(--space-6);
}
.hero__title span {
  color: var(--color-primary);
}
.hero__desc {
  font-size: var(--text-base);
  line-height: 1.7;
  max-width: 50ch;
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--space-8);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* ======== BUTTONS ======== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: background var(--transition-interactive),
              color var(--transition-interactive),
              transform var(--transition-interactive),
              box-shadow var(--transition-interactive);
  cursor: pointer;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--color-primary);
  color: #ffffff;
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
  color: #ffffff;
}
.btn--outline {
  background: transparent;
  color: #ffffff;
  border: 1.5px solid rgba(255,255,255,0.4);
}
.btn--outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
  color: #ffffff;
}
.btn--outline-dark {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}
.btn--outline-dark:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ======== SECTION COMMON ======== */
.section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}
.section__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-3);
}
.section__label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
}
.section__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.section__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 55ch;
  margin-bottom: var(--space-10);
}

/* ======== SERVICES ======== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
  gap: var(--space-6);
}
.service-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-divider);
  transition: transform var(--transition-interactive),
              box-shadow var(--transition-interactive),
              border-color var(--transition-interactive);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}
.service-card__img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.service-card__body {
  padding: var(--space-5);
}
.service-card__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-highlight);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  color: var(--color-primary);
}
.service-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.service-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ======== PORTFOLIO ======== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
  gap: var(--space-4);
}
.portfolio-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/10;
  cursor: pointer;
}
.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out);
}
.portfolio-item:hover img {
  transform: scale(1.05);
}
.portfolio-item__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, oklch(0.1 0 0 / 0.8) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-5);
  opacity: 0;
  transition: opacity 0.3s var(--ease-out);
}
.portfolio-item:hover .portfolio-item__overlay { opacity: 1; }
.portfolio-item__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: #ffffff;
}
.portfolio-item__cat {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.7);
  margin-top: var(--space-1);
}
.about__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 16px;
}
/* ======== ABOUT ======== */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}
@media (max-width: 768px) {
  .about__grid { grid-template-columns: 1fr; gap: var(--space-6); }
}
.about__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3/4;
  background: var(--color-surface-2);
  position: relative;
}
.about__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about__image-badge {
  position: absolute;
  bottom: var(--space-4);
  left: var(--space-4);
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
}
.about__text h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.about__text p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}
.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.stat {
  text-align: center;
}
.stat__number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-primary);
}
.stat__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ======== CONTACT ======== */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
}
@media (max-width: 768px) {
  .contact__grid { grid-template-columns: 1fr; gap: var(--space-6); }
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.form-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-text);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.15);
}
.form-group textarea { resize: vertical; min-height: 120px; }

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}
.contact-info__icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-highlight);
  border-radius: var(--radius-md);
  color: var(--color-primary);
}
.contact-info__label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.contact-info__value {
  font-size: var(--text-base);
  color: var(--color-text);
  margin-top: var(--space-1);
}
.contact-info__value a {
  color: var(--color-text);
}
.contact-info__value a:hover {
  color: var(--color-primary);
}

/* ======== FOOTER ======== */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-8);
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.footer__copy {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.footer__links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.footer__links a {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  transition: color var(--transition-interactive);
}
.footer__links a:hover { color: var(--color-primary); }

/* Social icons */
.social-links {
  display: flex;
  gap: var(--space-3);
}
.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  background: var(--color-surface-2);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}
.social-link:hover {
  color: #ffffff;
  background: var(--color-primary);
}

/* ======== SCROLL ANIMATIONS ======== */
.fade-in { opacity: 1; }

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

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

/* ======== CTA BANNER ======== */
.cta-banner {
  background: var(--color-primary);
  color: #ffffff;
  text-align: center;
  padding-block: clamp(var(--space-12), 6vw, var(--space-20));
}
.cta-banner__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  margin-bottom: var(--space-3);
}
.cta-banner__desc {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--space-6);
  max-width: 45ch;
  margin-inline: auto;
}
.cta-banner .btn--white {
  background: #ffffff;
  color: var(--color-primary);
  font-weight: 700;
}
.cta-banner .btn--white:hover {
  background: rgba(255,255,255,0.9);
  box-shadow: var(--shadow-md);
}

/* ======== ABOUT IMAGE PLACEHOLDER (SVG) ======== */
.about__image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-surface-2), var(--color-surface-offset));
  color: var(--color-text-faint);
}