/* ============================================================
   Carlos Medellin — personal site
   Swiss grid foundation · Norwegian minimalist accents
   System fonts only · one accent color
   ============================================================ */

:root {
  --bg:        #ffffff;
  --ink:       #111111;
  --ink-soft:  #565656;
  --hairline:  #e2e2e2;

  /* single accent — international vermilion */
  --accent:      #e8412a;
  --accent-dark: #c8331e;

  --sans: "Helvetica Neue", Inter, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --gutter: 24px;
  --maxw: 1200px;
  --col-gap: 40px;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, p, ol, ul { margin: 0; }
ol, ul { list-style: none; padding: 0; }

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { color: var(--accent-dark); }

code {
  font-family: var(--mono);
  font-size: 0.9em;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- layout scaffolding ---------- */
.grid {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section { padding: clamp(56px, 9vw, 120px) 0; }

.rule {
  border: 0;
  border-top: 1px solid var(--hairline);
  margin: 0;
}

/* ---------- monospace tag label ---------- */
.tag {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0;
}

/* ============================================================
   HERO
   ============================================================ */
.hero { padding-top: clamp(72px, 14vw, 180px); }

.hero__inner { max-width: 15ch; }
.hero__inner { max-width: none; }

.hero .tag { margin-bottom: clamp(20px, 4vw, 40px); }

.hero__headline {
  font-weight: 700;
  font-size: clamp(2.4rem, 7vw, 5.5rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  max-width: 16ch;
  text-wrap: balance;
}

.hero__subhead {
  margin-top: clamp(24px, 4vw, 40px);
  font-size: clamp(1.05rem, 2.1vw, 1.35rem);
  line-height: 1.45;
  color: var(--ink-soft);
  max-width: 46ch;
  text-wrap: pretty;
}

.hero__links {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: clamp(32px, 5vw, 52px);
}
.hero__links a {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.hero__links span { font-size: 0.9em; }

/* ============================================================
   WHAT I'M BUILDING
   ============================================================ */
.section__head { margin-bottom: clamp(40px, 6vw, 72px); }

.projects {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--col-gap);
}

.project {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--ink);
  padding-top: 20px;
}

.project__index {
  color: var(--accent);
  margin-bottom: 20px;
}

.project__name {
  font-weight: 700;
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  letter-spacing: -0.015em;
  line-height: 1.05;
  margin-bottom: 14px;
}

.project__desc {
  color: var(--ink-soft);
  font-size: 0.98rem;
  line-height: 1.5;
  text-wrap: pretty;
  flex: 1 1 auto;
  margin-bottom: 24px;
}
.project__desc code {
  color: var(--ink);
  background: #f3f3f3;
  padding: 1px 5px;
  border-radius: 2px;
}

.project__link {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  align-self: flex-start;
}
.project__link--muted {
  color: var(--ink-soft);
  cursor: default;
}

/* ============================================================
   EMAIL CAPTURE
   ============================================================ */
.capture__inner { max-width: 720px; }

.capture .tag { margin-bottom: clamp(20px, 4vw, 36px); }

.capture__headline {
  font-weight: 700;
  font-size: clamp(1.9rem, 4.6vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.capture__body {
  margin-top: 24px;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: 56ch;
  text-wrap: pretty;
}

.form {
  display: flex;
  gap: 12px;
  margin-top: clamp(32px, 5vw, 48px);
  max-width: 560px;
}

.form__input {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--sans);
  font-size: 1rem;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--ink);
  border-radius: 0;
  padding: 15px 16px;
  transition: border-color 0.15s ease;
}
.form__input::placeholder { color: #9a9a9a; }
.form__input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.form__button {
  flex: 0 0 auto;
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 0;
  padding: 15px 22px;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.18s ease, transform 0.06s ease;
}
.form__button span {
  display: inline-block;
  transition: transform 0.18s ease;
}
.form__button:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}
.form__button:hover span { transform: translateX(4px); }
.form__button:active { transform: translateY(1px); }
.form__button:disabled {
  opacity: 0.6;
  cursor: default;
}

.capture__note {
  margin-top: 18px;
  font-size: 0.85rem;
  color: var(--ink-soft);
  max-width: 52ch;
}

.form__result {
  margin-top: clamp(28px, 4vw, 40px);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 600;
  line-height: 1.4;
  max-width: 40ch;
  text-wrap: pretty;
}
.form__result .tag {
  display: block;
  margin-bottom: 10px;
  color: var(--accent);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer { padding: clamp(40px, 6vw, 64px) 0; }
.footer .grid {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 20px;
  flex-wrap: wrap;
}
.footer__copy {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
  .projects { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .projects { grid-template-columns: 1fr; gap: 0; }
  .project {
    border-top: 1px solid var(--hairline);
    padding: 28px 0;
  }
  .project:first-child { border-top: 1px solid var(--ink); }
  .project__desc { margin-bottom: 18px; }

  .form { flex-direction: column; }
  .form__button { width: 100%; }
}