/* ============================================
   LEARNFRAME SOLUTIONS — Design System
   Brand colours from logo:
   Navy: #2B2D5B  Lavender: #B8A9D4
   ============================================ */

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

:root {
  /* Brand Palette */
  --navy: #2B2D5B;
  --navy-dark: #1E1F40;
  --navy-light: #3D4078;
  --lavender: #B8A9D4;
  --lavender-light: #D4C9E8;
  --lavender-pale: #F0ECF6;
  --lavender-dark: #9585B5;

  /* Neutrals */
  --white: #FFFFFF;
  --off-white: #F8F7FA;
  --grey-100: #F2F1F5;
  --grey-200: #E5E3EA;
  --grey-300: #C8C5D0;
  --grey-500: #8A8694;
  --grey-700: #4A4755;
  --grey-900: #1A1826;

  /* Functional */
  --success: #2D9F6F;
  --accent: #E8914F;

  /* Typography */
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Layout */
  --container: 1200px;
  --container-narrow: 800px;
  --radius: 8px;
  --radius-lg: 16px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(43, 45, 91, 0.08);
  --shadow-md: 0 4px 16px rgba(43, 45, 91, 0.1);
  --shadow-lg: 0 8px 32px rgba(43, 45, 91, 0.12);
  --shadow-xl: 0 16px 48px rgba(43, 45, 91, 0.16);

  /* Transitions */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition: 0.3s var(--ease);
}

/* --- Base --- */
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-body);
  color: var(--grey-900);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--navy); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--lavender-dark); }

/* --- Typography --- */
h1, h2, h3, h4 { font-family: var(--font-display); color: var(--navy); line-height: 1.2; font-weight: 400; }
h1 { font-size: clamp(2.2rem, 4.5vw, 3.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.7rem); }
h4 { font-size: 1.15rem; font-family: var(--font-body); font-weight: 600; }

p { margin-bottom: 1.25rem; color: var(--grey-700); font-size: 1.05rem; }
p:last-child { margin-bottom: 0; }

.lead { font-size: 1.2rem; line-height: 1.8; color: var(--grey-700); }
.eyebrow { font-family: var(--font-body); font-weight: 600; font-size: 0.8rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--lavender-dark); margin-bottom: var(--space-sm); display: block; }

/* --- Layout --- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--space-md); }
.container--narrow { max-width: var(--container-narrow); }
.section { padding: var(--space-2xl) 0; }
.section--grey { background: var(--off-white); }
.section--navy { background: var(--navy); color: var(--white); }
.section--navy h2, .section--navy h3, .section--navy h4 { color: var(--white); }
.section--navy p { color: var(--lavender-light); }
.section--navy .eyebrow { color: var(--lavender); }
.section--lavender { background: var(--lavender-pale); }

.grid { display: grid; gap: var(--space-lg); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.flex { display: flex; gap: var(--space-md); }
.flex--center { align-items: center; justify-content: center; }
.flex--between { align-items: center; justify-content: space-between; }

.text-center { text-align: center; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  font-family: var(--font-body); font-weight: 600; font-size: 0.95rem;
  border-radius: var(--radius); border: 2px solid transparent;
  cursor: pointer; transition: var(--transition);
  text-decoration: none; line-height: 1;
}

.btn--primary {
  background: var(--navy); color: var(--white); border-color: var(--navy);
}
.btn--primary:hover {
  background: var(--navy-light); border-color: var(--navy-light); color: var(--white);
  transform: translateY(-2px); box-shadow: var(--shadow-md);
}

.btn--secondary {
  background: transparent; color: var(--navy); border-color: var(--navy);
}
.btn--secondary:hover {
  background: var(--navy); color: var(--white);
  transform: translateY(-2px);
}

.btn--lavender {
  background: var(--lavender); color: var(--navy); border-color: var(--lavender);
}
.btn--lavender:hover {
  background: var(--lavender-dark); border-color: var(--lavender-dark); color: var(--white);
  transform: translateY(-2px);
}

.btn--white {
  background: var(--white); color: var(--navy); border-color: var(--white);
}
.btn--white:hover {
  background: var(--lavender-pale); border-color: var(--lavender-pale);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent; color: var(--white); border-color: rgba(255,255,255,0.4);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.1); border-color: var(--white); color: var(--white);
}

.btn--nav-cta {
  background: #2B2D5B !important;
  color: #FFFFFF !important;
  border: 2px solid #2B2D5B !important;
  font-weight: 700;
  letter-spacing: 0.03em;
  border-radius: 50px;
  padding: 0.7rem 1.6rem;
}
.btn--nav-cta:hover {
  background: #1E1F40 !important;
  border-color: #1E1F40 !important;
  color: #FFFFFF !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(43, 45, 91, 0.3);
}
.nav__links .btn--nav-cta {
  color: #FFFFFF !important;
  background: #2B2D5B !important;
}
.nav__links .btn--nav-cta:hover {
  color: #FFFFFF !important;
  background: #1E1F40 !important;
}
.nav__links .btn--nav-cta::after { display: none !important; }

.btn svg { width: 18px; height: 18px; }

/* --- Navigation --- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--grey-200);
  transition: var(--transition);
}
.nav.scrolled { box-shadow: var(--shadow-sm); }

.nav__inner {
  max-width: var(--container); margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}

.nav__logo img { height: 40px; width: auto; }

.nav__links { display: flex; align-items: center; gap: var(--space-lg); list-style: none; }
.nav__links a {
  font-weight: 500; font-size: 0.92rem; color: var(--grey-700);
  padding: 0.4rem 0; position: relative;
}
.nav__links a::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px;
  background: var(--lavender); transition: var(--transition);
}
.nav__links a:hover { color: var(--navy); }
.nav__links a:hover::after { width: 100%; }
.nav__links a.active { color: var(--navy); }
.nav__links a.active::after { width: 100%; }

.nav__cta { margin-left: var(--space-sm); }

/* Mobile nav */
.nav__toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 32px; height: 32px; position: relative;
}
.nav__toggle span {
  display: block; width: 24px; height: 2px; background: var(--navy);
  position: absolute; left: 4px; transition: var(--transition);
}
.nav__toggle span:nth-child(1) { top: 8px; }
.nav__toggle span:nth-child(2) { top: 15px; }
.nav__toggle span:nth-child(3) { top: 22px; }
.nav__toggle.active span:nth-child(1) { transform: rotate(45deg); top: 15px; }
.nav__toggle.active span:nth-child(2) { opacity: 0; }
.nav__toggle.active span:nth-child(3) { transform: rotate(-45deg); top: 15px; }

@media (max-width: 768px) {
  .nav__toggle { display: block; }
  .nav__links {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    background: var(--white); flex-direction: column; padding: var(--space-md);
    border-bottom: 1px solid var(--grey-200); box-shadow: var(--shadow-md);
    gap: 0;
  }
  .nav__links.open { display: flex; }
  .nav__links li { width: 100%; }
  .nav__links a { display: block; padding: 0.8rem 0; border-bottom: 1px solid var(--grey-100); }
  .nav__cta { margin-left: 0; margin-top: var(--space-sm); }
}

/* --- Hero Section --- */
.hero {
  padding: calc(72px + var(--space-2xl)) 0 var(--space-2xl);
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 50%, var(--navy-light) 100%);
  position: relative; overflow: hidden;
  min-height: 85vh; display: flex; align-items: center;
}

.hero::before {
  content: ''; position: absolute; top: -50%; right: -20%; width: 80%; height: 200%;
  background: radial-gradient(ellipse, rgba(184, 169, 212, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  background: linear-gradient(to top, rgba(43, 45, 91, 0.3), transparent);
  pointer-events: none;
}

.hero__content { position: relative; z-index: 2; max-width: 720px; }
.hero__content .eyebrow { color: var(--lavender); margin-bottom: var(--space-md); }
.hero__content h1 { color: var(--white); margin-bottom: var(--space-md); font-size: clamp(2.4rem, 5vw, 3.8rem); }
.hero__content .lead { color: var(--lavender-light); margin-bottom: var(--space-lg); font-size: 1.2rem; }
.hero__actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; }

/* Geometric decoration */
.hero__cube {
  position: absolute; right: 8%; top: 50%; transform: translateY(-50%) rotate(15deg);
  width: 340px; height: 340px; opacity: 0.08;
  border: 3px solid var(--lavender);
  pointer-events: none;
  border-radius: var(--radius);
}

@media (max-width: 768px) {
  .hero { min-height: auto; padding: calc(72px + var(--space-xl)) 0 var(--space-xl); }
  .hero__cube { display: none; }
}

/* --- Interior Hero (sub-pages) --- */
.hero--interior {
  min-height: auto; padding: calc(72px + var(--space-xl)) 0 var(--space-xl);
}

/* --- Cards --- */
.card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid var(--grey-200);
  transition: var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--lavender-light);
}

.card__icon {
  width: 56px; height: 56px; border-radius: 12px;
  background: var(--lavender-pale); color: var(--navy);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-md);
}
.card__icon svg { width: 28px; height: 28px; stroke: var(--navy); fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }

/* Image panels for visual sections */
.img-panel {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
  border-radius: var(--radius-lg); overflow: hidden;
  min-height: 300px; display: flex; align-items: center; justify-content: center;
  position: relative;
}
.img-panel img { width: 100%; height: 100%; object-fit: cover; }
.img-panel--placeholder {
  background: linear-gradient(135deg, var(--lavender-pale) 0%, var(--grey-100) 100%);
}
.img-panel--placeholder::after {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 24 24' fill='none' stroke='%23B8A9D4' stroke-width='1' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='3' width='18' height='18' rx='2' ry='2'%3E%3C/rect%3E%3Ccircle cx='8.5' cy='8.5' r='1.5'%3E%3C/circle%3E%3Cpath d='m21 15-5-5L5 21'%3E%3C/path%3E%3C/svg%3E") center/60px no-repeat;
  opacity: 0.3;
}

.card__title { margin-bottom: var(--space-xs); }
.card__tag {
  display: inline-block; padding: 0.25rem 0.75rem;
  background: var(--lavender-pale); color: var(--navy);
  border-radius: 50px; font-size: 0.78rem; font-weight: 600;
  margin-bottom: var(--space-sm);
}

/* --- Stats Row --- */
.stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md); text-align: center;
}

.stat__number {
  font-family: var(--font-display); font-size: 3rem;
  color: var(--lavender); line-height: 1; margin-bottom: 0.3rem;
}
.section--navy .stat__number { color: var(--lavender); }
.stat__label { font-size: 0.9rem; font-weight: 500; color: var(--grey-500); }
.section--navy .stat__label { color: var(--lavender-light); }

/* --- Testimonials --- */
.testimonial {
  background: var(--white); border-radius: var(--radius-lg);
  padding: var(--space-lg); border-left: 4px solid var(--lavender);
  box-shadow: var(--shadow-sm);
}
.testimonial__text { font-size: 1.1rem; font-style: italic; color: var(--grey-700); margin-bottom: var(--space-md); }
.testimonial__author { font-weight: 600; color: var(--navy); }
.testimonial__role { font-size: 0.9rem; color: var(--grey-500); }

/* --- Blog Cards --- */
.blog-card {
  background: var(--white); border-radius: var(--radius-lg);
  overflow: hidden; border: 1px solid var(--grey-200);
  transition: var(--transition);
}
.blog-card:hover {
  box-shadow: var(--shadow-lg); transform: translateY(-4px);
  border-color: var(--lavender-light);
}
.blog-card__body { padding: var(--space-md); }
.blog-card__date { font-size: 0.82rem; color: var(--grey-500); margin-bottom: var(--space-xs); }
.blog-card__title { font-family: var(--font-display); font-size: 1.25rem; color: var(--navy); margin-bottom: var(--space-xs); }
.blog-card__excerpt { font-size: 0.95rem; color: var(--grey-700); margin-bottom: var(--space-sm); }
.blog-card__link { font-weight: 600; color: var(--navy); font-size: 0.9rem; }
.blog-card__link:hover { color: var(--lavender-dark); }

/* --- Resource Cards --- */
.resource-card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: var(--space-lg); border: 2px solid var(--grey-200);
  text-align: center; transition: var(--transition);
}
.resource-card:hover { border-color: var(--lavender); box-shadow: var(--shadow-md); }
.resource-card__icon { font-size: 2.5rem; margin-bottom: var(--space-sm); }
.resource-card__title { font-family: var(--font-display); margin-bottom: var(--space-xs); }
.resource-card__desc { font-size: 0.95rem; margin-bottom: var(--space-md); }

/* --- Forms --- */
.form-group { margin-bottom: var(--space-md); }
.form-group label {
  display: block; font-weight: 600; font-size: 0.9rem;
  color: var(--navy); margin-bottom: 0.4rem;
}
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 0.8rem 1rem;
  border: 2px solid var(--grey-200); border-radius: var(--radius);
  font-family: var(--font-body); font-size: 1rem; color: var(--grey-900);
  transition: var(--transition); background: var(--white);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--lavender); box-shadow: 0 0 0 3px rgba(184, 169, 212, 0.2);
}
.form-group textarea { resize: vertical; min-height: 140px; }

/* --- Email Signup Bar --- */
.signup-bar {
  background: var(--navy); padding: var(--space-xl) 0;
}
.signup-bar h3 { color: var(--white); margin-bottom: var(--space-xs); }
.signup-bar p { color: var(--lavender-light); margin-bottom: var(--space-md); }
.signup-bar__form {
  display: flex; gap: var(--space-sm); max-width: 500px;
}
.signup-bar__form input {
  flex: 1; padding: 0.8rem 1rem; border: 2px solid var(--navy-light);
  border-radius: var(--radius); background: var(--navy-dark); color: var(--white);
  font-size: 1rem; font-family: var(--font-body);
}
.signup-bar__form input::placeholder { color: var(--grey-500); }
.signup-bar__form input:focus { border-color: var(--lavender); outline: none; }

@media (max-width: 560px) {
  .signup-bar__form { flex-direction: column; }
}

/* --- Footer --- */
.footer {
  background: var(--navy-dark); color: var(--grey-300); padding: var(--space-2xl) 0 var(--space-lg);
}
.footer__grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl); margin-bottom: var(--space-xl);
}
.footer__brand p { color: var(--grey-500); font-size: 0.92rem; margin-top: var(--space-sm); line-height: 1.6; }
.footer__brand img { height: 36px; margin-bottom: var(--space-sm); filter: brightness(0) invert(1); }
.footer h4 { color: var(--lavender-light); font-size: 0.85rem; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: var(--space-md); }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 0.6rem; }
.footer ul a { color: var(--grey-500); font-size: 0.9rem; }
.footer ul a:hover { color: var(--lavender-light); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.08); padding-top: var(--space-md);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.85rem; color: var(--grey-500);
}

@media (max-width: 768px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
  .footer__bottom { flex-direction: column; gap: var(--space-sm); text-align: center; }
}
@media (max-width: 480px) {
  .footer__grid { grid-template-columns: 1fr; }
}

/* --- Process / Steps --- */
.process { counter-reset: step; }
.process__step {
  display: grid; grid-template-columns: 80px 1fr;
  gap: var(--space-md); margin-bottom: var(--space-lg);
  align-items: start;
}
.process__number {
  counter-increment: step;
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--lavender-pale); color: var(--navy);
  font-family: var(--font-display); font-size: 1.5rem;
  display: flex; align-items: center; justify-content: center;
  border: 2px solid var(--lavender);
}

@media (max-width: 480px) {
  .process__step { grid-template-columns: 1fr; }
}

/* --- Fade-in animations --- */
.fade-in {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in:nth-child(2) { transition-delay: 0.1s; }
.fade-in:nth-child(3) { transition-delay: 0.2s; }
.fade-in:nth-child(4) { transition-delay: 0.3s; }

/* --- Divider --- */
.divider {
  width: 60px; height: 3px; background: var(--lavender);
  border-radius: 3px; margin-bottom: var(--space-md);
}
.divider--center { margin-left: auto; margin-right: auto; }

/* --- CTA banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  border-radius: var(--radius-lg); padding: var(--space-xl);
  text-align: center; position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; top: -50%; right: -30%; width: 60%; height: 200%;
  background: radial-gradient(ellipse, rgba(184, 169, 212, 0.1) 0%, transparent 70%);
}
.cta-banner h2 { color: var(--white); margin-bottom: var(--space-sm); position: relative; }
.cta-banner p { color: var(--lavender-light); margin-bottom: var(--space-md); position: relative; }
.cta-banner .btn { position: relative; }

/* --- Page body content (blog posts etc) --- */
.page-body { max-width: var(--container-narrow); margin: 0 auto; padding: var(--space-xl) var(--space-md); }
.page-body h2 { margin-top: var(--space-lg); margin-bottom: var(--space-sm); }
.page-body h3 { margin-top: var(--space-md); margin-bottom: var(--space-sm); }
.page-body ul, .page-body ol { margin-bottom: 1.25rem; padding-left: 1.5rem; }
.page-body li { margin-bottom: 0.5rem; color: var(--grey-700); }
.page-body blockquote {
  border-left: 4px solid var(--lavender); padding: var(--space-sm) var(--space-md);
  background: var(--lavender-pale); border-radius: 0 var(--radius) var(--radius) 0;
  margin: var(--space-md) 0; font-style: italic;
}

/* --- Comparison table --- */
.comparison-table { width: 100%; border-collapse: collapse; margin: var(--space-md) 0; }
.comparison-table th {
  background: var(--navy); color: var(--white); padding: 0.8rem 1rem;
  text-align: left; font-weight: 600; font-size: 0.9rem;
}
.comparison-table td {
  padding: 0.8rem 1rem; border-bottom: 1px solid var(--grey-200);
  font-size: 0.95rem; color: var(--grey-700);
}
.comparison-table tr:nth-child(even) td { background: var(--grey-100); }

/* --- Badge --- */
.badge {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.3rem 0.8rem; border-radius: 50px;
  font-size: 0.78rem; font-weight: 600;
}
.badge--success { background: #E7F7EF; color: var(--success); }
.badge--new { background: var(--lavender-pale); color: var(--navy); }

/* --- Scroll to top --- */
.scroll-top {
  position: fixed; bottom: 24px; right: 24px; z-index: 999;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--navy); color: var(--white); border: none;
  cursor: pointer; opacity: 0; transform: translateY(16px);
  transition: var(--transition); font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center;
}
.scroll-top.visible { opacity: 1; transform: translateY(0); }
.scroll-top:hover { background: var(--navy-light); transform: translateY(-2px); }

/* Photo-realistic icon cards */
.card__img-icon {
  width: 100%; height: 180px; border-radius: 12px;
  background-size: cover; background-position: center;
  margin-bottom: var(--space-md);
  box-shadow: var(--shadow-sm);
}
.service-visual {
  border-radius: var(--radius-lg); overflow: hidden;
  height: 280px; background-size: cover; background-position: center;
  position: relative;
}
.service-visual::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(43,45,91,0.6), transparent 60%);
}

/* Blog card images fill fully */
.blog-card__image {
  height: 220px; background: var(--lavender-pale);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.blog-card__image img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}