/* ============================================================================
   STYLE.CSS — Base styles, layout & components (desktop-first source of truth)
   Breakpoint overrides live in responsive.css. Color tokens live in themes.css.
   ========================================================================== */

/* ---------------------------------------------------------------------
 * RESET
 * ------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color var(--duration-base) var(--ease-out), color var(--duration-base) var(--ease-out);
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.15; letter-spacing: -0.01em; }
p { color: var(--text-muted); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------------------------------------------------------------------
 * FOCUS / ACCESSIBILITY
 * ------------------------------------------------------------------- */
:focus-visible {
  outline: 2.5px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}
.skip-link {
  position: fixed;
  top: -60px;
  left: 16px;
  z-index: 1000;
  background: var(--accent);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: top var(--duration-fast) var(--ease-out);
}
.skip-link:focus { top: 16px; }

/* ---------------------------------------------------------------------
 * LAYOUT HELPERS
 * ------------------------------------------------------------------- */
.container { width: 100%; max-width: 1240px; margin-inline: auto; padding-inline: 24px; }
.section { padding-block: 120px; position: relative; }
.section--alt { background: var(--bg-alt); }

.section__header { max-width: 640px; margin-bottom: 64px; }
.section__header.center { margin-inline: auto; text-align: center; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--accent); border-radius: 2px; }
.section__title { font-size: clamp(2rem, 3.2vw, 2.75rem); color: var(--text); }
.section__desc { margin-top: 18px; font-size: 1.05rem; color: var(--text-muted); }

/* reveal-on-scroll (see app.js IntersectionObserver) */
[data-reveal] { opacity: 0; transform: translateY(28px); transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out); }
[data-reveal].is-revealed { opacity: 1; transform: translateY(0); }
[data-reveal-delay="1"] { transition-delay: 0.08s; }
[data-reveal-delay="2"] { transition-delay: 0.16s; }
[data-reveal-delay="3"] { transition-delay: 0.24s; }
[data-reveal-delay="4"] { transition-delay: 0.32s; }
[data-reveal-delay="5"] { transition-delay: 0.4s; }

/* ---------------------------------------------------------------------
 * SCROLL PROGRESS BAR
 * ------------------------------------------------------------------- */
.scroll-progress { position: fixed; top: 0; left: 0; width: 100%; height: 3px; z-index: 1100; background: transparent; }
.scroll-progress__bar {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.1s linear;
}

/* ---------------------------------------------------------------------
 * BUTTONS
 * ------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 30px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  transition: transform var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out), background-color var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
  min-height: 48px;
}
.btn:active { transform: scale(0.97); }
.btn--primary { background: var(--text); color: var(--bg); box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--accent); color: #fff; box-shadow: var(--shadow-md); transform: translateY(-2px); }
.btn--secondary { background: transparent; color: var(--text); border: 1.5px solid var(--border-strong); }
.btn--secondary:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn--accent { background: var(--accent); color: #fff; box-shadow: 0 10px 24px rgba(var(--accent-rgb), 0.35); }
.btn--accent:hover { box-shadow: 0 14px 32px rgba(var(--accent-rgb), 0.45); transform: translateY(-2px); }
.btn--block { width: 100%; }
.btn .icon { width: 18px; height: 18px; }

/* ---------------------------------------------------------------------
 * HEADER / NAVIGATION
 * ------------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  width: 100%;
  padding-block: 22px;
  transition: padding var(--duration-base) var(--ease-out), background-color var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  padding-block: 14px;
  background: var(--surface-glass);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 600; font-size: 1.4rem; color: var(--accent); text-transform: uppercase; }
.brand img { border-radius: 8px; }
.brand__accent { color: inherit; }

.nav-menu { display: flex; align-items: center; gap: 36px; }
.nav-menu ul { display: flex; align-items: center; gap: 34px; }
.nav-menu a:not(.btn) {
  position: relative;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  padding-block: 6px;
  transition: color var(--duration-fast) var(--ease-out);
}
.nav-menu a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px;
  background: var(--accent); border-radius: 2px;
  transition: width var(--duration-base) var(--ease-out);
}
.nav-menu a:not(.btn):hover { color: var(--text); }
.nav-menu a:not(.btn):hover::after,
.nav-menu a:not(.btn).is-active::after { width: 100%; }
.nav-menu a:not(.btn).is-active { color: var(--text); }

.nav-menu__social { display: flex; align-items: center; gap: 14px; padding-left: 20px; border-left: 1px solid var(--border); }
.nav-menu__social a { color: var(--text-faint); transition: color var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out); }
.nav-menu__social a:hover { color: var(--accent); transform: translateY(-2px); }
.nav-menu__social .icon { width: 18px; height: 18px; }

.site-header__actions { display: flex; align-items: center; gap: 14px; }

.theme-toggle {
  position: relative; width: 46px; height: 46px; border-radius: var(--radius-full);
  border: 1px solid var(--border); display: flex; align-items: center; justify-content: center;
  transition: border-color var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}
.theme-toggle:hover { border-color: var(--accent); transform: rotate(-8deg); }
.theme-toggle__icon { position: absolute; width: 20px; height: 20px; transition: opacity var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out); }
.theme-toggle__icon .icon { width: 100%; height: 100%; }
.theme-toggle__icon--sun { opacity: 1; transform: rotate(0deg) scale(1); color: var(--accent-2); }
.theme-toggle__icon--moon { opacity: 0; transform: rotate(-60deg) scale(0.5); color: var(--accent); }
[data-theme="dark"] .theme-toggle__icon--sun { opacity: 0; transform: rotate(60deg) scale(0.5); }
[data-theme="dark"] .theme-toggle__icon--moon { opacity: 1; transform: rotate(0deg) scale(1); }

.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 44px; height: 44px; }
.nav-toggle__bar { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: transform var(--duration-fast) var(--ease-out), opacity var(--duration-fast) var(--ease-out); margin-inline: auto; }
body.nav-open .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.nav-open .nav-toggle__bar:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------------------------------------------------------------------
 * HERO
 * ------------------------------------------------------------------- */
.hero { position: relative; padding-block: 90px 60px; min-height: 92vh; display: flex; align-items: center; overflow: hidden; }
.hero__decor { position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.hero__blob { position: absolute; border-radius: 50%; filter: blur(70px); opacity: 0.35; }
.hero__blob--1 { width: 480px; height: 480px; background: var(--accent); top: -160px; right: -120px; animation: float-slow 14s ease-in-out infinite; }
.hero__blob--2 { width: 380px; height: 380px; background: var(--accent-2); bottom: -140px; left: -100px; opacity: 0.25; animation: float-slow 18s ease-in-out infinite reverse; }
.hero__grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black 10%, transparent 75%);
  opacity: 0.5;
}
@keyframes float-slow { 0%, 100% { transform: translate(0, 0) scale(1); } 50% { transform: translate(-24px, 30px) scale(1.05); } }

.hero__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; align-items: center; }

.hero__media { position: relative; }
.hero__frame {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  aspect-ratio: 4 / 5; box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  background: var(--bg-alt);
}
.hero__frame img { width: 100%; height: 100%; object-fit: cover; }
.hero__frame::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit;
  background: linear-gradient(160deg, rgba(var(--accent-rgb), 0.18), transparent 45%);
  pointer-events: none;
}
.hero__badge {
  position: absolute; bottom: -22px; left: -22px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 16px 20px;
  box-shadow: var(--shadow-md);
  display: flex; align-items: center; gap: 12px;
  animation: float-slow 8s ease-in-out infinite;
}
.hero__badge-icon { width: 42px; height: 42px; border-radius: var(--radius-sm); background: rgba(var(--accent-rgb), 0.12); color: var(--accent); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.hero__badge-icon .icon { width: 22px; height: 22px; }
.hero__badge strong { display: block; font-size: 1.1rem; color: var(--text); }
.hero__badge span { font-size: 0.78rem; color: var(--text-muted); }
.hero__ring {
  position: absolute; top: -28px; right: -28px; width: 96px; height: 96px;
  border: 1.5px dashed var(--border-strong); border-radius: 50%;
  animation: spin 24s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hero__text .eyebrow { margin-bottom: 18px; }
.hero__name { font-size: clamp(2.6rem, 5vw, 4.2rem); color: var(--accent); text-transform: uppercase; margin-bottom: 6px; }
.hero__title { font-family: var(--font-body); font-weight: 600; font-size: clamp(1.15rem, 1.8vw, 1.5rem); color: var(--accent); margin-bottom: 22px; }
.hero__desc { font-size: 1.08rem; max-width: 540px; margin-bottom: 34px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 40px; }
.hero__social { display: flex; align-items: center; gap: 16px; }
.hero__social span { font-size: 0.82rem; color: var(--text-faint); font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
.hero__social-links { display: flex; gap: 12px; }
.hero__social-links a {
  width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center; color: var(--text-muted);
  transition: all var(--duration-fast) var(--ease-out);
}
.hero__social-links a:hover { background: var(--accent); border-color: var(--accent); color: #fff; transform: translateY(-3px); }
.hero__social-links .icon { width: 17px; height: 17px; }

.hero__scroll-hint { position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 10px; z-index: 1; color: var(--text-faint); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; }
.hero__scroll-track { width: 22px; height: 36px; border: 1.5px solid var(--border-strong); border-radius: var(--radius-full); display: flex; justify-content: center; padding-top: 6px; }
.hero__scroll-dot { width: 4px; height: 8px; border-radius: 2px; background: var(--accent); animation: scroll-bounce 1.8s ease-in-out infinite; }
@keyframes scroll-bounce { 0%,100% { transform: translateY(0); opacity: 1;} 50% { transform: translateY(10px); opacity: 0.3; } }

/* ---------------------------------------------------------------------
 * ABOUT
 * ------------------------------------------------------------------- */
.about__grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 72px; align-items: center; }
.about__media { position: relative; }
.about__frame { border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 1/1; box-shadow: var(--shadow-md); border: 1px solid var(--border); }
.about__frame img { width: 100%; height: 100%; object-fit: cover; }
.about__paragraphs p { margin-bottom: 16px; font-size: 1.02rem; }

.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin: 44px 0; }
.stat-card { text-align: left; }
.stat-card__value { font-family: var(--font-display); font-size: 2.4rem; color: var(--text); font-weight: 600; display: flex; align-items: baseline; gap: 2px; }
.stat-card__value .suffix { color: var(--accent); }
.stat-card__label { color: var(--text-muted); font-size: 0.88rem; margin-top: 6px; }

.skills { display: flex; flex-direction: column; gap: 18px; margin-top: 36px; }
.skill-bar__head { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 0.9rem; font-weight: 600; }
.skill-bar__head span:last-child { color: var(--accent); }
.skill-bar__track { height: 8px; background: var(--border); border-radius: var(--radius-full); overflow: hidden; }
.skill-bar__fill { height: 100%; width: 0%; border-radius: var(--radius-full); background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width 1.2s var(--ease-out); }

.timeline { margin-top: 20px; display: flex; flex-direction: column; gap: 28px; }
.timeline-item { position: relative; padding-left: 28px; border-left: 2px solid var(--border); }
.timeline-item::before { content: ""; position: absolute; left: -6.5px; top: 4px; width: 11px; height: 11px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.15); }
.timeline-item__period { font-size: 0.8rem; color: var(--accent); font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; }
.timeline-item h4 { font-size: 1.05rem; margin-top: 4px; color: var(--text); }
.timeline-item__company { font-size: 0.9rem; color: var(--text-faint); margin-top: 2px; margin-bottom: 6px; }

.about__tabs { display: flex; gap: 8px; margin-top: 48px; border-bottom: 1px solid var(--border); }
.about__tab { padding: 10px 4px; margin-right: 24px; font-weight: 600; color: var(--text-faint); position: relative; }
.about__tab.is-active { color: var(--text); }
.about__tab.is-active::after { content: ""; position: absolute; left: 0; bottom: -1px; width: 100%; height: 2px; background: var(--accent); }
.about__tab-panel { display: none; padding-top: 30px; }
.about__tab-panel.is-active { display: block; }

/* ---------------------------------------------------------------------
 * SERVICES
 * ------------------------------------------------------------------- */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.service-card {
  background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 38px 32px; transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
  position: relative; overflow: hidden;
}
.service-card::before {
  content: ""; position: absolute; inset: 0; opacity: 0; border-radius: inherit;
  background: linear-gradient(160deg, rgba(var(--accent-rgb), 0.08), transparent 60%);
  transition: opacity var(--duration-base) var(--ease-out);
}
.service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); border-color: rgba(var(--accent-rgb), 0.35); }
.service-card:hover::before { opacity: 1; }
.service-card__icon {
  width: 58px; height: 58px; border-radius: var(--radius-md); background: rgba(var(--accent-rgb), 0.1); color: var(--accent);
  display: flex; align-items: center; justify-content: center; margin-bottom: 24px;
  transition: background var(--duration-base) var(--ease-out), color var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out);
}
.service-card:hover .service-card__icon { background: var(--accent); color: #fff; transform: rotate(-6deg) scale(1.05); }
.service-card__icon .icon { width: 26px; height: 26px; }
.service-card h3 { font-size: 1.25rem; margin-bottom: 12px; position: relative; }
.service-card p { position: relative; font-size: 0.95rem; margin-bottom: 20px; }
.service-card__link { position: relative; display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 0.9rem; color: var(--text); }
.service-card__link .icon { width: 16px; height: 16px; transition: transform var(--duration-fast) var(--ease-out); }
.service-card__link:hover { color: var(--accent); }
.service-card__link:hover .icon { transform: translateX(4px); }

/* ---------------------------------------------------------------------
 * PORTFOLIO
 * ------------------------------------------------------------------- */
.portfolio-filters { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 48px; }
.filter-btn {
  padding: 10px 22px; border-radius: var(--radius-full); border: 1px solid var(--border);
  font-weight: 600; font-size: 0.88rem; color: var(--text-muted);
  transition: all var(--duration-fast) var(--ease-out);
}
.filter-btn:hover { border-color: var(--accent); color: var(--accent); }
.filter-btn.is-active { background: var(--text); border-color: var(--text); color: var(--bg); }

.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.portfolio-card {
  border-radius: var(--radius-lg); overflow: hidden; position: relative;
  background: var(--bg-elevated); border: 1px solid var(--border);
  transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
}
.portfolio-card.is-hidden { display: none; }
.portfolio-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.portfolio-card__media { aspect-ratio: 4/3; overflow: hidden; position: relative; }
.portfolio-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease-out); }
.portfolio-card:hover .portfolio-card__media img { transform: scale(1.08); }
.portfolio-card__body { padding: 22px 24px 26px; }
.portfolio-card__category { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); margin-bottom: 8px; }
.portfolio-card__body h3 { font-size: 1.15rem; }
.portfolio-card__body p { font-size: 0.9rem; margin-top: 8px; }

/* ---------------------------------------------------------------------
 * CONTACT
 * ------------------------------------------------------------------- */
.contact__grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; }
.contact-info { display: flex; flex-direction: column; gap: 22px; }
.contact-info__item { display: flex; align-items: flex-start; gap: 16px; padding: 22px; border-radius: var(--radius-md); border: 1px solid var(--border); background: var(--bg-elevated); transition: border-color var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out); }
.contact-info__item:hover { border-color: rgba(var(--accent-rgb), 0.4); transform: translateX(4px); }
.contact-info__icon { width: 46px; height: 46px; border-radius: var(--radius-sm); background: rgba(var(--accent-rgb), 0.1); color: var(--accent); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-info__icon .icon { width: 22px; height: 22px; }
.contact-info__item h4 { font-size: 0.98rem; margin-bottom: 4px; }
.contact-info__item p, .contact-info__item a { font-size: 0.92rem; }
.contact-info__item a:hover { color: var(--accent); }

.contact-social { margin-top: 8px; display: flex; gap: 12px; }
.contact-social a { width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--text-muted); transition: all var(--duration-fast) var(--ease-out); }
.contact-social a:hover { background: var(--accent); border-color: var(--accent); color: #fff; transform: translateY(-3px); }
.contact-social .icon { width: 17px; height: 17px; }

.contact-form { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 40px; box-shadow: var(--shadow-sm); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 22px; position: relative; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 8px; }
.form-group input, .form-group textarea {
  width: 100%; padding: 14px 16px; border-radius: var(--radius-sm); border: 1.5px solid var(--border);
  background: var(--input-bg); color: var(--text); transition: border-color var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-group input:focus, .form-group textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.12); outline: none; }
.form-group input.is-invalid, .form-group textarea.is-invalid { border-color: #e5484d; }
.form-group__error { display: none; color: #e5484d; font-size: 0.78rem; margin-top: 6px; }
.form-group.has-error .form-group__error { display: block; }

/* ---------------------------------------------------------------------
 * FOOTER
 * ------------------------------------------------------------------- */
.site-footer { background: var(--bg-inverse); color: var(--text-on-accent); padding-top: 80px; }
[data-theme="dark"] .site-footer { background: #060911; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 0.8fr 0.8fr 1.1fr; gap: 48px; padding-bottom: 56px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-brand .brand { color: #fff; margin-bottom: 16px; }
.footer-brand p { color: rgba(255,255,255,0.6); max-width: 300px; margin-bottom: 22px; font-size: 0.92rem; }
.footer-social { display: flex; gap: 10px; }
.footer-social a { width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.16); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.7); transition: all var(--duration-fast) var(--ease-out); }
.footer-social a:hover { background: var(--accent); border-color: var(--accent); color: #fff; transform: translateY(-3px); }
.footer-social .icon { width: 16px; height: 16px; }
.footer-col h5 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; color: rgba(255,255,255,0.5); margin-bottom: 20px; }
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a, .footer-col p { color: rgba(255,255,255,0.75); font-size: 0.92rem; transition: color var(--duration-fast) var(--ease-out); }
.footer-col a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-block: 26px; color: rgba(255,255,255,0.5); font-size: 0.85rem; flex-wrap: wrap; gap: 10px; }
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: #fff; }
.footer-bottom__credit { display: inline-flex; align-items: center; gap: 10px; }
.footer-bottom__credit-label { font-size: 0.8rem; letter-spacing: 0.06em; color: rgba(255,255,255,0.55); }
.footer-bottom__credit img { display: block; height: 100px; width: auto; transition: filter var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out); }
.footer-bottom__credit:hover img { filter: drop-shadow(0 0 14px rgba(var(--accent-rgb), 0.55)); transform: translateY(-2px); }

/* ---------------------------------------------------------------------
 * BACK TO TOP
 * ------------------------------------------------------------------- */
.back-to-top {
  position: fixed; right: 28px; bottom: 28px; z-index: 900;
  width: 50px; height: 50px; border-radius: 50%;
  background: var(--text); color: var(--bg);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0; visibility: hidden; transform: translateY(16px);
  transition: all var(--duration-base) var(--ease-out);
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--accent); color: #fff; transform: translateY(-4px); }
.back-to-top::before {
  content: ""; display: block; width: 20px; height: 20px;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 19V5M5 12l7-7 7 7'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 19V5M5 12l7-7 7 7'/%3E%3C/svg%3E") center / contain no-repeat;
  background-color: currentColor;
}

/* ---------------------------------------------------------------------
 * TOAST
 * ------------------------------------------------------------------- */
.toast {
  position: fixed; bottom: 28px; left: 50%; transform: translate(-50%, 20px);
  z-index: 1300; background: var(--text); color: var(--bg);
  padding: 16px 26px; border-radius: var(--radius-full); box-shadow: var(--shadow-lg);
  font-weight: 600; font-size: 0.9rem; display: flex; align-items: center; gap: 10px;
  opacity: 0; visibility: hidden; transition: all var(--duration-base) var(--ease-out);
}
.toast.is-visible { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.toast.is-error { background: #e5484d; color: #fff; }

/* ---------------------------------------------------------------------
 * MISC
 * ------------------------------------------------------------------- */
::selection { background: var(--accent); color: #fff; }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }