/* REColution landing — boutique tech, logo-derived palette */

:root {
  --accent: #e30613;
  --accent-hover: #c50511;
  --accent-muted: rgba(227, 6, 19, 0.14);
  --ink: #0a0a0a;
  --ink-soft: #404040;
  --muted: #737373;
  --line: #e8e8e8;
  --line-strong: #d4d4d4;
  --bg: #fafafa;
  --bg-white: #ffffff;
  --ring-gray: #c4c4c4;
  --font-display: "Sora", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --max-text: 38rem;
  --max-wide: 72rem;
  --header-h: 4.25rem;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow-soft: 0 24px 48px -24px rgba(10, 10, 10, 0.12);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink-soft);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: var(--bg-white);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  left: var(--space-sm);
  top: var(--space-sm);
}

/* ——— Header ——— */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}

.site-header__inner {
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.brand-mark {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity 0.2s var(--ease-out);
}

.brand-mark:hover {
  opacity: 0.85;
}

.brand-mark__img {
  width: auto;
  height: 2rem;
}

@media (min-width: 640px) {
  .brand-mark__img {
    height: 2.25rem;
  }
}

.header-cta {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--accent);
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.25s var(--ease-out), color 0.2s;
}

.header-cta:hover {
  color: var(--accent-hover);
  border-bottom-color: var(--accent);
}

/* ——— Hero ——— */

.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100dvh - var(--header-h));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl) var(--space-md) var(--space-xl);
  overflow: hidden;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(color-mix(in srgb, var(--line) 45%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--line) 45%, transparent) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
  pointer-events: none;
  opacity: 0.65;
}

.hero__glow {
  position: absolute;
  width: min(90vw, 640px);
  height: min(90vw, 640px);
  left: 50%;
  top: 42%;
  transform: translate(-50%, -50%);
  background: radial-gradient(
    circle,
    color-mix(in srgb, var(--accent) 18%, transparent) 0%,
    transparent 62%
  );
  animation: hero-glow 14s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes hero-glow {
  0% {
    opacity: 0.55;
    transform: translate(-50%, -50%) scale(1);
  }
  100% {
    opacity: 0.9;
    transform: translate(-48%, -52%) scale(1.08);
  }
}

.hero__ring {
  position: absolute;
  left: 50%;
  top: 38%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  pointer-events: none;
  border: 1px solid color-mix(in srgb, var(--ring-gray) 55%, transparent);
}

.hero__ring--outer {
  width: min(72vw, 420px);
  height: min(72vw, 420px);
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
  animation: spin-slow 48s linear infinite;
}

.hero__ring--outer::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  border: 1px solid transparent;
  border-top-color: var(--accent);
  border-right-color: color-mix(in srgb, var(--accent) 40%, transparent);
  opacity: 0.85;
}

.hero__ring--inner {
  width: min(56vw, 320px);
  height: min(56vw, 320px);
  animation: spin-slow-reverse 36s linear infinite;
}

@keyframes spin-slow {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

@keyframes spin-slow-reverse {
  to {
    transform: translate(-50%, -50%) rotate(-360deg);
  }
}

.hero__scan {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 120%;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    color-mix(in srgb, var(--accent) 6%, transparent) 48%,
    transparent 52%
  );
  background-size: 100% 180%;
  animation: scan-move 10s ease-in-out infinite;
  pointer-events: none;
  opacity: 0.35;
}

@keyframes scan-move {
  0%,
  100% {
    background-position: 0 -40%;
  }
  50% {
    background-position: 0 40%;
  }
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 44rem;
  margin: 0 auto;
}

.hero__logo-wrap {
  margin-bottom: var(--space-lg);
  display: flex;
  justify-content: center;
}

.hero__logo {
  width: min(72vw, 280px);
  height: auto;
  filter: drop-shadow(0 12px 32px rgba(10, 10, 10, 0.06));
  animation: logo-float 7s ease-in-out infinite;
}

@keyframes logo-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}

.hero__eyebrow {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 var(--space-md);
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3.25rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin: 0 0 var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 0.15em;
}

.hero__title-strong {
  font-weight: 800;
}

.hero__title-light {
  font-weight: 300;
  color: var(--ink-soft);
}

.hero__lead {
  font-size: 1.0625rem;
  color: var(--muted);
  max-width: 32rem;
  margin: 0 auto;
  line-height: 1.7;
}

@media (prefers-reduced-motion: reduce) {
  .hero__glow,
  .hero__ring--outer,
  .hero__ring--inner,
  .hero__scan,
  .hero__logo {
    animation: none;
  }
}

/* ——— Sections ——— */

.section {
  padding: var(--space-2xl) var(--space-md);
}

.section--about {
  background: var(--bg-white);
  border-top: 1px solid var(--line);
}

.section--projects {
  padding-bottom: var(--space-3xl);
}

.section__inner {
  max-width: var(--max-text);
  margin: 0 auto;
}

.section__inner--wide {
  max-width: var(--max-wide);
}

.section__label {
  font-family: var(--font-display);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin: 0 0 var(--space-md);
  line-height: 1.2;
}

.section__head .section__intro {
  margin-top: var(--space-sm);
  max-width: 28rem;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.65;
}

.prose p {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.prose strong {
  color: var(--ink);
  font-weight: 600;
}

/* ——— Project grid ——— */

.project-grid {
  list-style: none;
  margin: var(--space-xl) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }
}

@media (min-width: 1024px) {
  .project-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.project-card {
  margin: 0;
}

.project-card__inner {
  height: 100%;
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-md);
  box-shadow: var(--shadow-soft);
  transition:
    transform 0.35s var(--ease-out),
    border-color 0.35s var(--ease-out),
    box-shadow 0.35s var(--ease-out);
}

.project-card:hover .project-card__inner,
.project-card:focus-within .project-card__inner {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 28%, var(--line));
  box-shadow:
    0 28px 56px -28px rgba(10, 10, 10, 0.18),
    0 0 0 1px color-mix(in srgb, var(--accent) 12%, transparent);
}

.project-card__top {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.project-card__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-muted);
  flex-shrink: 0;
}

.project-card__tag {
  font-family: var(--font-display);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.project-card__name {
  font-family: var(--font-display);
  font-size: 1.1875rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 var(--space-sm);
  line-height: 1.25;
}

.project-card__desc {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--muted);
}

/* ——— Contact ——— */

.section--contact {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-3xl);
}

.section__inner--contact {
  max-width: var(--max-wide);
}

.contact-panel {
  position: relative;
  background: linear-gradient(
    135deg,
    var(--bg-white) 0%,
    color-mix(in srgb, var(--bg) 40%, var(--bg-white)) 100%
  );
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  overflow: hidden;
}

.contact-panel::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -15%;
  width: min(50vw, 320px);
  height: min(50vw, 320px);
  background: radial-gradient(circle, var(--accent-muted) 0%, transparent 65%);
  pointer-events: none;
}

.contact-panel > * {
  position: relative;
  z-index: 1;
}

.contact-panel__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin: 0 0 var(--space-sm);
}

.contact-panel__text {
  margin: 0 0 var(--space-lg);
  color: var(--muted);
  max-width: 28rem;
  line-height: 1.65;
}

.contact-panel__mail {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -0.02em;
  border-bottom: 2px solid color-mix(in srgb, var(--accent) 35%, transparent);
  padding-bottom: 2px;
  transition: color 0.25s var(--ease-out), border-color 0.25s var(--ease-out);
}

.contact-panel__mail:hover {
  color: var(--accent-hover);
  border-bottom-color: var(--accent);
}

/* ——— Footer ——— */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-white);
  padding: var(--space-lg) var(--space-md);
}

.site-footer__inner {
  max-width: var(--max-wide);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: flex-start;
}

@media (min-width: 640px) {
  .site-footer__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.site-footer__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.site-footer__meta {
  font-size: 0.8125rem;
  color: var(--muted);
}

.site-footer__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.site-footer__link:hover {
  border-bottom-color: var(--accent);
}

/* ——— Scroll reveal ——— */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.7s var(--ease-out),
    transform 0.7s var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}