/* ==========================================================================
   Step of Hope — by Eman Algamal — Core Stylesheet
   Design tokens, reset, typography, layout primitives, dark mode, motion.
   Palette derived from the brand logo: deep blue → turquoise gradient,
   leaf green, and a soft gold accent.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@300;400;500;600;700;800;900&display=swap');

/* -------------------- Design Tokens -------------------- */
:root {
  /* Brand palette — light mode */
  --color-primary: #139aa8;
  --color-primary-dark: #1c4fa0;
  --color-primary-light: #dcf3f4;
  --color-secondary: #6fb648;
  --color-secondary-light: #ecf6e4;
  --color-accent: #c9a35c;

  --gradient-brand: linear-gradient(135deg, #1c4fa0, #139aa8);

  --color-bg: #faf8f3;
  --color-bg-alt: #f2efe6;
  --color-surface: #ffffff;
  --color-surface-raised: #ffffff;

  --color-text: #1c2624;
  --color-text-muted: #5c6b66;
  --color-text-soft: #7c8b86;
  --color-border: #e6e0d3;
  --color-border-strong: #d3ccbb;

  --color-success: #2f9e6f;
  --color-warning: #b8873a;
  --color-danger: #c1452f;

  --shadow-sm: 0 1px 2px rgba(20, 30, 27, 0.06);
  --shadow-md: 0 6px 20px rgba(20, 30, 27, 0.08);
  --shadow-lg: 0 18px 48px rgba(20, 30, 27, 0.12);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  --font-base: 'Cairo', 'Segoe UI', Tahoma, sans-serif;

  --container-max: 1240px;
  --header-height: 84px;

  --ease-premium: cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 180ms var(--ease-premium);
  --transition-base: 320ms var(--ease-premium);
  --transition-slow: 560ms var(--ease-premium);
}

/* -------------------- Dark mode tokens -------------------- */
:root[data-theme='dark'] {
  --color-primary: #3fd0d9;
  --color-primary-dark: #4d7fd6;
  --color-primary-light: #103138;
  --color-secondary: #7cc656;
  --color-secondary-light: #15211a;
  --color-accent: #e0bd7c;

  --gradient-brand: linear-gradient(135deg, #1c4fa0, #139aa8);

  --color-bg: #0b1512;
  --color-bg-alt: #0f1c18;
  --color-surface: #12211c;
  --color-surface-raised: #16281f;

  --color-text: #eef4f1;
  --color-text-muted: #a9bdb5;
  --color-text-soft: #7f948c;
  --color-border: #223a32;
  --color-border-strong: #2c473d;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 22px 56px rgba(0, 0, 0, 0.45);
}

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

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

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

body {
  font-family: var(--font-base);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

/* -------------------- Focus visibility (a11y) -------------------- */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* -------------------- Typography -------------------- */
h1, h2, h3, h4, h5 {
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-text);
}

h1 { font-size: clamp(2.1rem, 1.6rem + 2.2vw, 3.6rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.7rem, 1.4rem + 1.4vw, 2.6rem); }
h3 { font-size: clamp(1.25rem, 1.1rem + 0.7vw, 1.6rem); }
h4 { font-size: 1.15rem; font-weight: 700; }

p { color: var(--color-text-muted); }

.lead {
  font-size: clamp(1.05rem, 1rem + 0.3vw, 1.25rem);
  color: var(--color-text-muted);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 18px;
  letter-spacing: 0.01em;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 48px;
}

.section-heading.center {
  margin-inline: auto;
  text-align: center;
}

.text-primary { color: var(--color-primary); }
.text-muted { color: var(--color-text-muted); }

/* -------------------- Layout primitives -------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 24px;
}

main { display: block; overflow-x: clip; }

section {
  padding-block: clamp(56px, 5vw + 20px, 108px);
}

.section-alt {
  background: var(--color-bg-alt);
}

.grid {
  display: grid;
  gap: 28px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.flex {
  display: flex;
  align-items: center;
}

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

.gap-sm { gap: 12px; }
.gap-md { gap: 20px; }
.gap-lg { gap: 32px; }

.stack { display: flex; flex-direction: column; }

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

.skip-link {
  position: absolute;
  top: -60px;
  inset-inline-start: 16px;
  background: var(--color-primary);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  z-index: 999;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 16px;
}

/* -------------------- Buttons -------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 32px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.98rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}

.btn:active { transform: translateY(1px) scale(0.99); }

.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
}

.btn-ghost {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-block { width: 100%; }

.btn-sm { padding: 10px 20px; font-size: 0.88rem; }

.btn-lg { padding: 18px 40px; font-size: 1.05rem; }

.btn-whatsapp {
  background: #25d366;
  color: #06331d;
}
.btn-whatsapp:hover { background: #1fb959; }

/* -------------------- Scroll reveal -------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* -------------------- Placeholder media blocks -------------------- */
.media-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-secondary-light);
  border: 1px solid var(--color-border);
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.placeholder-tag {
  position: absolute;
  top: 14px;
  inset-inline-start: 14px;
  background: rgba(20, 30, 27, 0.72);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  z-index: 2;
  letter-spacing: 0.02em;
}

/* -------------------- Utility spacing -------------------- */
.mt-lg { margin-top: 32px; }
.mb-lg { margin-bottom: 32px; }