/*
Theme Name: Fund Theme
Theme URI: https://tr-fund.eu
Description: EUVC — European Union Venture Capital. Landing page theme.
Version: 1.1.0
Author: EUVC
Author URI: https://tr-fund.eu
Text Domain: fund-theme
License: Proprietary
*/

/* =====================================================================
   GOOGLE FONTS — loaded via wp_enqueue_style in functions.php
   ===================================================================== */

/* =====================================================================
   CSS CUSTOM PROPERTIES (Design System §2, §3, §4)
   ===================================================================== */

:root {
  /* Colours */
  --c-bg:           #FFFFFF;
  --c-bg-alt:       #F5F6F8;
  --c-surface:      #FFFFFF;
  --c-border:       #E3E6EB;
  --c-text:         #0E1A2B;
  --c-text-muted:   #4A5567;
  --c-text-subtle:  #7B8597;

  --c-brand:        #1F3A5F;
  --c-brand-dark:   #142640;
  --c-accent:       #2E75B6;
  --c-accent-hover: #225A8E;

  --c-success:      #2E7D5B;
  --c-warning:      #B07A1A;
  --c-danger:       #B3261E;
  --c-info:         #2E75B6;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  /* Shadows */
  --shadow-card:       0 2px 8px rgba(14, 26, 43, 0.06);
  --shadow-card-hover: 0 4px 16px rgba(14, 26, 43, 0.08);

  /* Typography */
  --font-ui:   'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Type scale — desktop defaults */
  --fs-display-size: 56px;
  --fs-display-lh:   64px;
  --fs-h1-size:      40px;
  --fs-h1-lh:        48px;
  --fs-h2-size:      28px;
  --fs-h2-lh:        36px;
  --fs-h3-size:      22px;
  --fs-h3-lh:        30px;
  --fs-h4-size:      18px;
  --fs-h4-lh:        26px;
  --fs-body:         16px;
  --fs-body-lh:      24px;
  --fs-small:        14px;
  --fs-small-lh:     20px;
  --fs-micro:        12px;
  --fs-micro-lh:     16px;

  /* Spacing (8-pt) */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;
  --sp-10: 128px;

  /* Transitions */
  --ease-default: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-micro:    150ms;
  --dur-default:  250ms;
}

/* =====================================================================
   RESET & BASE
   ===================================================================== */

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

html {
  font-size: var(--fs-body);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-ui);
  font-size: var(--fs-body);
  line-height: var(--fs-body-lh);
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Accessible focus ring — Design System §7.2 */
:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Reduced motion — Design System §9 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* =====================================================================
   LAYOUT UTILITIES
   ===================================================================== */

.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 24px; /* mobile */
}

/* =====================================================================
   BUTTONS (Design System §5.1)
   ===================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  height: 44px;
  padding: 0 20px;
  border-radius: var(--radius-sm);
  font-family: var(--font-ui);
  font-size: var(--fs-body);
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
  transition:
    background-color var(--dur-micro) var(--ease-default),
    border-color    var(--dur-micro) var(--ease-default),
    color           var(--dur-micro) var(--ease-default);
  text-decoration: none;
}

/* Primary — single CTA colour */
.btn-primary {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: #FFFFFF;
}
.btn-primary:hover {
  background: var(--c-accent-hover);
  border-color: var(--c-accent-hover);
  color: #FFFFFF;
}

/* Secondary / Ghost */
.btn-secondary {
  background: transparent;
  border-color: var(--c-border);
  color: var(--c-text);
}
.btn-secondary:hover {
  background: var(--c-bg-alt);
  border-color: var(--c-border);
  color: var(--c-text);
}

/* =====================================================================
   SITE HEADER (sticky, thin border)
   ===================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

/* Logo */
.site-header__logo {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.1;
  text-decoration: none;
  flex-shrink: 0;
}
.site-header__logo .logo-mark {
  font-size: var(--fs-h4-size);
  font-weight: 700;
  color: var(--c-brand);
  letter-spacing: 0.04em;
}
.site-header__logo .logo-full {
  font-size: 11px;
  font-weight: 500;
  color: var(--c-text-subtle);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.site-header__logo:hover .logo-mark {
  color: var(--c-brand-dark);
}

/* Nav */
.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

/* =====================================================================
   HERO SECTION
   ===================================================================== */

.hero {
  padding-block: var(--sp-10) var(--sp-9); /* 128 / 96 */
  background: var(--c-bg);
  position: relative;
  overflow: hidden;
}

/* Hero-картинка справа (десктоп): занимает правую часть экрана, слева плавно
   растворяется в фоне, чтобы текст оставался читаемым без затемнения. */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 50%;
  background-image: var(--hero-image);
  background-size: cover;
  background-position: center;
  pointer-events: none;
  z-index: 0;
}

/* Скрим: горизонтальный градиент от фона к прозрачному поверх картинки —
   мягкая граница текст/изображение. */
.hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 60%;
  background: linear-gradient(
    90deg,
    var(--c-bg) 0%,
    rgba(255, 255, 255, 0.85) 18%,
    rgba(255, 255, 255, 0) 55%
  );
  pointer-events: none;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 600px;
}

.hero__eyebrow {
  display: inline-block;
  font-size: var(--fs-micro);
  font-weight: 500;
  color: var(--c-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--sp-4);
}

.hero__title {
  font-size: var(--fs-display-size);
  line-height: var(--fs-display-lh);
  font-weight: 700;
  color: var(--c-brand);
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-5);
}

.hero__subtitle {
  font-size: var(--fs-h4-size);
  line-height: var(--fs-h4-lh);
  color: var(--c-text-muted);
  font-weight: 400;
  max-width: 560px;
  margin-bottom: var(--sp-7);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  align-items: center;
}

/* =====================================================================
   HOW IT WORKS SECTION
   ===================================================================== */

.how-it-works {
  padding-block: var(--sp-9);
  background: var(--c-bg-alt);
}

.section-header {
  margin-bottom: var(--sp-7);
}

.section-title {
  font-size: var(--fs-h2-size);
  line-height: var(--fs-h2-lh);
  font-weight: 600;
  color: var(--c-brand);
  letter-spacing: -0.01em;
  margin-bottom: var(--sp-3);
}

.section-subtitle {
  font-size: var(--fs-body);
  line-height: var(--fs-body-lh);
  color: var(--c-text-muted);
  max-width: 480px;
}

/* Steps grid */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}

.step-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: var(--sp-6);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--dur-micro) var(--ease-default);
}
.step-card:hover {
  box-shadow: var(--shadow-card-hover);
}

.step-card__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-5);
  color: var(--c-accent);
}

.step-card__number {
  font-size: var(--fs-micro);
  font-weight: 500;
  color: var(--c-text-subtle);
  letter-spacing: 0.04em;
  margin-bottom: var(--sp-3);
}

.step-card__title {
  font-size: var(--fs-h4-size);
  line-height: var(--fs-h4-lh);
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: var(--sp-2);
}

.step-card__desc {
  font-size: var(--fs-small);
  line-height: var(--fs-small-lh);
  color: var(--c-text-muted);
}

/* =====================================================================
   TRACKS SECTION
   ===================================================================== */

.tracks {
  padding-block: var(--sp-9);
  background: var(--c-bg);
}

.tracks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}

.track-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: var(--sp-6);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--dur-micro) var(--ease-default);
  display: flex;
  flex-direction: column;
}
.track-card:hover {
  box-shadow: var(--shadow-card-hover);
}

.track-card__label {
  font-size: var(--fs-micro);
  font-weight: 500;
  color: var(--c-text-subtle);
  letter-spacing: 0.04em;
  margin-bottom: var(--sp-3);
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.track-card__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-4);
  color: var(--c-brand);
}

.track-card__name {
  font-size: var(--fs-h3-size);
  line-height: var(--fs-h3-lh);
  font-weight: 600;
  color: var(--c-brand);
  letter-spacing: -0.01em;
  margin-bottom: var(--sp-3);
}

.track-card__desc {
  font-size: var(--fs-small);
  line-height: var(--fs-small-lh);
  color: var(--c-text-muted);
  flex: 1;
}

.track-card__badge {
  display: inline-flex;
  align-items: center;
  margin-top: var(--sp-4);
  padding: 2px var(--sp-3);
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: 9999px;
  font-size: var(--fs-micro);
  line-height: var(--fs-micro-lh);
  font-weight: 500;
  color: var(--c-text-subtle);
  width: fit-content;
}

/* =====================================================================
   CTA BAND SECTION
   ===================================================================== */

.cta-band {
  padding-block: var(--sp-9);
  background: var(--c-brand);
}

.cta-band__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-6);
  flex-wrap: wrap;
}

.cta-band__copy {
  flex: 1;
  min-width: 240px;
}

.cta-band__title {
  font-size: var(--fs-h2-size);
  line-height: var(--fs-h2-lh);
  font-weight: 600;
  color: #FFFFFF;
  letter-spacing: -0.01em;
  margin-bottom: var(--sp-3);
}

.cta-band__subtitle {
  font-size: var(--fs-body);
  line-height: var(--fs-body-lh);
  color: rgba(255, 255, 255, 0.72);
}

/* White primary variant for dark band */
.btn-primary--on-dark {
  background: #FFFFFF;
  border-color: #FFFFFF;
  color: var(--c-brand);
}
.btn-primary--on-dark:hover {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.9);
  color: var(--c-brand-dark);
}

/* =====================================================================
   SITE FOOTER
   ===================================================================== */

.site-footer {
  padding-block: var(--sp-6);
  background: var(--c-bg);
  border-top: 1px solid var(--c-border);
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-4);
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.site-footer__logo {
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--c-brand);
  text-decoration: none;
}
.site-footer__logo:hover {
  color: var(--c-brand-dark);
}

.site-footer__copy {
  font-size: var(--fs-micro);
  color: var(--c-text-subtle);
  line-height: var(--fs-micro-lh);
}

.site-footer__links {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  list-style: none;
  flex-wrap: wrap;
}

.site-footer__links a {
  font-size: var(--fs-small);
  color: var(--c-text-subtle);
  text-decoration: none;
  transition: color var(--dur-micro) var(--ease-default);
}
.site-footer__links a:hover {
  color: var(--c-text-muted);
}

/* =====================================================================
   RESPONSIVE — Tablet (768px+)
   ===================================================================== */

@media (min-width: 768px) {
  .container {
    padding-inline: 40px;
  }

  .hero {
    padding-block: var(--sp-9);
  }
}

/* =====================================================================
   RESPONSIVE — Desktop (1024px+)
   ===================================================================== */

@media (min-width: 1024px) {
  .container {
    padding-inline: 80px;
  }
}

/* =====================================================================
   RESPONSIVE — Mobile overrides (<768px)
   ===================================================================== */

@media (max-width: 767px) {
  :root {
    --fs-display-size: 36px;
    --fs-display-lh:   44px;
    --fs-h1-size:      28px;
    --fs-h1-lh:        36px;
    --fs-h2-size:      22px;
    --fs-h2-lh:        30px;
  }

  /* Header: show only Apply button, hide Sign In text label (keep accessible) */
  .site-header__inner {
    height: 56px;
  }

  .site-header__nav {
    gap: var(--sp-2);
  }

  /* Hero: на мобиле картинка — фон во всю ширину с сильным светлым скримом
     (текст остаётся читаемым), без правой колонки. */
  .hero {
    padding-block: var(--sp-8) var(--sp-7);
  }
  .hero::before {
    width: 100%;
  }
  .hero::after {
    width: 100%;
    background: linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.92) 0%,
      rgba(255, 255, 255, 0.88) 55%,
      rgba(255, 255, 255, 0.8) 100%
    );
  }

  .hero__subtitle {
    font-size: var(--fs-body);
  }

  /* Steps: single column */
  .steps-grid {
    grid-template-columns: 1fr;
  }

  /* Tracks: single column */
  .tracks-grid {
    grid-template-columns: 1fr;
  }

  /* CTA band: stacked */
  .cta-band__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  /* Footer: stacked */
  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* =====================================================================
   RESPONSIVE — Tablet only (768–1023px)
   ===================================================================== */

@media (min-width: 768px) and (max-width: 1023px) {
  /* Steps: 2 + 1 */
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Tracks: 2 + 1 */
  .tracks-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}