/* ==========================================================================
   GoToMarket.news -- Retro Editorial Design System
   Warm, authoritative, matchbox-inspired. Complements the vintage
   propaganda-poster thumbnail art style.
   ========================================================================== */

/* ---------- Font Faces ---------- */

@font-face {
  font-family: "Bebas Neue";
  src: url("/assets/fonts/bebas-neue-v14-latin-regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Work Sans";
  src: url("/assets/fonts/work-sans-v19-latin-regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Work Sans";
  src: url("/assets/fonts/work-sans-v19-latin-600.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* ---------- Custom Properties ---------- */

:root {
  /* Warm paper palette -- matches the cream/beige in thumbnails */
  --color-bg: #F5F0E1;
  --color-surface: #FFFDF7;
  --color-surface-alt: rgba(26, 26, 26, 0.03);

  /* Deep ink -- the navy-black from the thumbnails */
  --color-ink: #1A1A1A;
  --color-ink-secondary: #504A40;
  --color-ink-muted: #8A8275;

  /* Accent colors from the thumbnail art */
  --color-accent: #C84B20;
  --color-accent-hover: #A83D18;
  --color-accent-deep: #8B2500;
  --color-navy: #1C2A3A;
  --color-teal: #2A6B5E;

  --font-display: "Bebas Neue", "Impact", sans-serif;
  --font-body: "Work Sans", "Helvetica Neue", Arial, sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  --border-width: 3px;
  --border-color: var(--color-ink);
  --radius: 2px;

  --container-max: 1100px;
  --container-narrow: 760px;

  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
}

/* ---------- Reset & Base ---------- */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-ink);
  background-color: var(--color-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;

  /* Paper-grain texture */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-deep);
}

::selection {
  background: var(--color-accent);
  color: var(--color-surface);
}

/* ---------- Typography ---------- */

h1, h2, h3, h4 {
  font-family: var(--font-body);
  font-weight: 600;
  line-height: 1.2;
}

h1 { font-size: 2.75rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.25rem; }

/* Display headings -- Bebas Neue for section labels and big type */
.display-heading {
  font-family: var(--font-display);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  line-height: 1.05;
}

p + p {
  margin-top: var(--space-sm);
}

/* ---------- Container ---------- */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* ---------- Matchbox Frame Component ---------- */

.matchbox-frame {
  border: var(--border-width) solid var(--border-color);
  outline: var(--border-width) solid var(--border-color);
  outline-offset: 5px;
  padding: var(--space-lg);
  background-color: var(--color-surface);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.75rem 1.75rem;
  border: var(--border-width) solid var(--border-color);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), transform 0.1s;
  text-align: center;
  line-height: 1;
  text-decoration: none;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-surface);
  border-color: var(--color-accent-deep);
}

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-surface);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-ink);
}

.btn--secondary:hover {
  background-color: var(--color-ink);
  color: var(--color-bg);
}

.btn--sm {
  font-size: 0.95rem;
  padding: 0.5rem 1.25rem;
}

/* ---------- Site Header ---------- */

.site-header {
  padding: var(--space-sm) 0;
  border-bottom: var(--border-width) solid var(--border-color);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header__logo {
  text-decoration: none;
  color: var(--color-ink);
}

.site-header__logo:hover {
  color: var(--color-ink);
}

.site-header__name {
  font-family: var(--font-display);
  font-size: 1.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.site-header__dot {
  color: var(--color-accent);
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.site-header__link {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ink);
}

.site-header__link:hover {
  color: var(--color-accent);
}

/* ---------- Hero ---------- */

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

.hero__inner {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  border: var(--border-width) solid var(--border-color);
  outline: var(--border-width) solid var(--border-color);
  outline-offset: 5px;
  background-color: var(--color-surface);
  position: relative;
}

/* Decorative corner marks */
.hero__inner::before,
.hero__inner::after {
  content: "";
  position: absolute;
  width: 24px;
  height: 24px;
  border-color: var(--color-accent);
  border-style: solid;
}

.hero__inner::before {
  top: 12px;
  left: 12px;
  border-width: 3px 0 0 3px;
}

.hero__inner::after {
  bottom: 12px;
  right: 12px;
  border-width: 0 3px 3px 0;
}

.hero__label {
  font-family: var(--font-display);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.hero__title {
  font-family: var(--font-display);
  font-size: 4.5rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--color-ink);
  margin-bottom: var(--space-sm);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-accent-deep);
  margin-bottom: var(--space-md);
}

.hero__tagline {
  font-size: 1.05rem;
  color: var(--color-ink-secondary);
  max-width: 540px;
  margin: 0 auto var(--space-lg);
  line-height: 1.65;
}

.hero__form {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  max-width: 460px;
  margin: 0 auto;
}

.hero__input {
  flex: 1;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75rem 1rem;
  border: var(--border-width) solid var(--border-color);
  border-right: none;
  background: #fff;
  outline: none;
  transition: box-shadow var(--transition-fast);
}

.hero__input::placeholder {
  color: var(--color-ink-muted);
}

.hero__input:focus {
  box-shadow: inset 0 0 0 1px var(--color-accent);
}

.hero__btn {
  white-space: nowrap;
}

.hero__proof {
  margin-top: var(--space-sm);
  font-size: 0.8rem;
  color: var(--color-ink-muted);
  letter-spacing: 0.02em;
}

/* ---------- Value Proposition ---------- */

.value-prop {
  padding: var(--space-xl) 0;
  background-color: var(--color-navy);
  color: var(--color-bg);
  border-top: var(--border-width) solid var(--color-ink);
  border-bottom: var(--border-width) solid var(--color-ink);
}

.value-prop__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.value-prop__item {
  padding: var(--space-lg) var(--space-md);
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  text-align: center;
}

.value-prop__item:last-child {
  border-right: none;
}

.value-prop__number {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.value-prop__item-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-bg);
  margin-bottom: var(--space-xs);
  line-height: 1.35;
}

.value-prop__item-text {
  color: rgba(245, 240, 225, 0.65);
  font-size: 0.9rem;
  line-height: 1.65;
}

/* ---------- Articles Section ---------- */

.articles-section {
  padding: var(--space-xl) 0 var(--space-2xl);
}

.articles-section__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: var(--border-width) solid var(--border-color);
}

.articles-section__heading {
  font-family: var(--font-display);
  font-size: 2.5rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  line-height: 1.05;
}

.articles-section__heading--page {
  margin-bottom: var(--space-lg);
}

.articles-section__all {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-ink-secondary);
  text-transform: uppercase;
}

.articles-section__all:hover {
  color: var(--color-accent);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
}

/* ---------- Article Card ---------- */

.article-card {
  display: flex;
  flex-direction: column;
  border: var(--border-width) solid var(--border-color);
  color: var(--color-ink);
  text-decoration: none;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  padding: 0;
  overflow: hidden;
  background-color: var(--color-surface);
}

.article-card:hover {
  transform: translateY(-3px);
  box-shadow: 5px 5px 0 var(--color-ink);
  color: var(--color-ink);
}

.article-card__image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-bottom: var(--border-width) solid var(--border-color);
}

.article-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-card__body {
  padding: var(--space-sm) var(--space-md) var(--space-md);
  flex: 1;
}

.article-card__date {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}

.article-card__title {
  margin-bottom: 0.3rem;
  line-height: 1.3;
  font-size: 1.05rem;
}

.article-card__tagline {
  font-size: 0.85rem;
  color: var(--color-ink-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- Signup Form ---------- */

.signup-form {
  margin: var(--space-xl) auto;
  max-width: 580px;
  text-align: center;
  border: var(--border-width) solid var(--border-color);
  outline: var(--border-width) solid var(--border-color);
  outline-offset: 5px;
  padding: var(--space-xl) var(--space-lg);
  background-color: var(--color-surface);
}

.signup-form__label {
  font-family: var(--font-display);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.signup-form__heading {
  font-family: var(--font-display);
  font-size: 2.25rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-sm);
  color: var(--color-ink);
  line-height: 1.1;
}

.signup-form__subtext {
  color: var(--color-ink-secondary);
  margin-bottom: var(--space-md);
  font-size: 1rem;
  line-height: 1.6;
}

.signup-form__field {
  display: flex;
  gap: 0;
}

.signup-form__input {
  flex: 1;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75rem 1rem;
  border: var(--border-width) solid var(--border-color);
  border-right: none;
  background: #fff;
  outline: none;
  transition: box-shadow var(--transition-fast);
}

.signup-form__input::placeholder {
  color: var(--color-ink-muted);
}

.signup-form__input:focus {
  box-shadow: inset 0 0 0 1px var(--color-accent);
}

.signup-form__btn {
  white-space: nowrap;
}

.signup-form__feedback {
  width: 100%;
  margin-top: var(--space-sm);
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
  border-radius: 4px;
  min-height: 1.4em;
}

.signup-form__feedback:empty {
  display: none;
}

.signup-form__feedback--success {
  color: var(--color-teal);
  background: rgba(42, 107, 94, 0.1);
  border: 1px solid rgba(42, 107, 94, 0.25);
}

.signup-form__feedback--error {
  color: var(--color-accent-deep);
  background: rgba(139, 37, 0, 0.08);
  border: 1px solid rgba(139, 37, 0, 0.2);
}

/* ---------- Article Detail ---------- */

.article-detail {
  padding: var(--space-xl) 0 var(--space-2xl);
}

.article-detail__banner {
  display: flex;
  flex-direction: row;
  gap: var(--space-lg);
  align-items: center;
  margin-bottom: var(--space-lg);
  border: var(--border-width) solid var(--border-color);
  outline: var(--border-width) solid var(--border-color);
  outline-offset: 5px;
  padding: var(--space-lg);
  background-color: var(--color-surface);
}

.article-detail__hero {
  flex: 0 0 280px;
  border: var(--border-width) solid var(--border-color);
  overflow: hidden;
}

.article-detail__hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.article-detail__header {
  flex: 1;
  min-width: 0;
}

.article-detail__date {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.article-detail__title {
  font-size: 2.25rem;
  line-height: 1.15;
  margin-bottom: var(--space-sm);
}

.article-detail__tagline {
  font-size: 1.05rem;
  color: var(--color-ink-secondary);
  line-height: 1.55;
}

.article-detail__body {
  max-width: var(--container-narrow);
  margin: 0 auto var(--space-xl);
  font-size: 1.05rem;
  line-height: 1.8;
}

.article-detail__body h2 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
  font-size: 1.6rem;
}

.article-detail__body h3 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
}

.article-detail__body p {
  margin-bottom: var(--space-md);
}

.article-detail__body ul,
.article-detail__body ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
}

.article-detail__body li {
  margin-bottom: var(--space-xs);
  line-height: 1.7;
}

.article-detail__body blockquote {
  border-left: 4px solid var(--color-accent);
  padding-left: var(--space-md);
  margin: var(--space-lg) 0;
  font-style: italic;
  color: var(--color-ink-secondary);
}

.article-detail__body a {
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: rgba(200, 75, 32, 0.4);
}

.article-detail__body a:hover {
  text-decoration-color: var(--color-accent);
}

.article-detail__footer {
  text-align: center;
  margin-bottom: var(--space-lg);
}

/* ---------- Site Footer ---------- */

.site-footer {
  border-top: var(--border-width) solid var(--border-color);
  padding: var(--space-lg) 0;
  margin-top: var(--space-lg);
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.site-footer__copy {
  font-size: 0.85rem;
  color: var(--color-ink-secondary);
}

.site-footer__links {
  display: flex;
  gap: var(--space-md);
}

.site-footer__links a {
  font-size: 0.85rem;
  color: var(--color-ink-secondary);
  text-decoration: none;
}

.site-footer__links a:hover {
  color: var(--color-accent);
}

/* ---------- 404 ---------- */

.page-404 {
  text-align: center;
  padding: var(--space-2xl) 0;
}

.page-404__title {
  font-family: var(--font-display);
  font-size: 8rem;
  color: var(--color-accent);
  line-height: 1;
}

.page-404__text {
  font-size: 1.15rem;
  color: var(--color-ink-secondary);
  margin: var(--space-sm) 0 var(--space-lg);
}

/* Empty state */
.articles-section__empty {
  text-align: center;
  color: var(--color-ink-secondary);
  padding: var(--space-lg);
}

/* ---------- Responsive ---------- */

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }

  .site-header__name {
    font-size: 1.35rem;
  }

  .site-header__nav {
    gap: var(--space-sm);
  }

  .site-header__link {
    font-size: 0.78rem;
  }

  .btn--sm {
    font-size: 0.82rem;
    padding: 0.4rem 0.9rem;
  }

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

  .hero__inner {
    padding: var(--space-lg) var(--space-md);
  }

  .hero__inner::before,
  .hero__inner::after {
    width: 16px;
    height: 16px;
  }

  .hero__inner::before {
    top: 8px;
    left: 8px;
  }

  .hero__inner::after {
    bottom: 8px;
    right: 8px;
  }

  .hero__title {
    font-size: 2.75rem;
  }

  .hero__tagline {
    font-size: 0.95rem;
  }

  .hero__form {
    flex-direction: column;
    gap: 0;
  }

  .hero__input {
    border-right: var(--border-width) solid var(--border-color);
    border-bottom: none;
  }

  .matchbox-frame,
  .hero__inner,
  .signup-form,
  .article-detail__banner {
    padding: var(--space-md);
    outline-offset: 3px;
  }

  .value-prop__grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .value-prop__item {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    padding: var(--space-md);
  }

  .value-prop__item:last-child {
    border-bottom: none;
  }

  .articles-section__heading {
    font-size: 2rem;
  }

  .articles-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .article-card__image {
    aspect-ratio: 16 / 9;
  }

  .article-detail__banner {
    flex-direction: column;
  }

  .article-detail__hero {
    flex: none;
    width: 100%;
  }

  .signup-form {
    margin-left: var(--space-sm);
    margin-right: var(--space-sm);
  }

  .signup-form__field {
    flex-direction: column;
    gap: 0;
  }

  .signup-form__input {
    border-right: var(--border-width) solid var(--border-color);
    border-bottom: none;
  }

  .signup-form__heading {
    font-size: 1.75rem;
  }

  .article-detail__title {
    font-size: 1.75rem;
  }

  .site-footer__inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .site-header__name {
    font-size: 1.15rem;
    letter-spacing: 0.03em;
  }

  .site-header__nav {
    gap: var(--space-xs);
  }

  .hero__title {
    font-size: 2.25rem;
  }

  .page-404__title {
    font-size: 5rem;
  }
}