/* ============================================================
   ENGELdevelopment — Custom Stylesheet
   Layered on top of Bootstrap 5
   ============================================================ */

/* ── Self-hosted Fonts ────────────────────────────────────── */
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/dm-sans-400.woff2') format('woff2');
}
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/dm-sans-500.woff2') format('woff2');
}
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/dm-sans-600.woff2') format('woff2');
}
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/dm-sans-700.woff2') format('woff2');
}
@font-face {
  font-family: 'Syne';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/syne-600.woff2') format('woff2');
}
@font-face {
  font-family: 'Syne';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/syne-700.woff2') format('woff2');
}
@font-face {
  font-family: 'Syne';
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url('../fonts/syne-800.woff2') format('woff2');
}

/* ── Design Tokens ────────────────────────────────────────── */
:root {
  --color-primary:      #1E3A8A;
  --color-primary-dark: #162E72;
  --color-primary-pale: #EBF0FA;
  --color-bg:           #FAFAF7;
  --color-surface:      #FFFFFF;
  --color-surface-alt:  #F4F1EB;
  --color-text:         #1C1C1C;
  --color-text-mid:     #444444;
  --color-text-muted:   #767676;
  --color-border:       #E4E1DA;

  --font-heading: 'DM Sans', system-ui, sans-serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  --radius:    0.5rem;
  --radius-sm: 0.375rem;
  --radius-lg: 0.75rem;

  --shadow-card: 0 2px 16px rgba(28, 28, 28, 0.07);
  --shadow-btn:  0 2px 8px rgba(30, 58, 138, 0.28);

  --section-py: 5.5rem;
  --transition: 0.22s ease;
}

/* ── Reset / Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;      /* 17px */
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text);
}

a {
  color: var(--color-primary-dark);
  transition: color var(--transition);
}
a:hover { color: var(--color-primary); }

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

/* ── Utilities ────────────────────────────────────────────── */
.text-primary-brand { color: var(--color-primary) !important; }
.bg-surface-alt     { background-color: var(--color-surface-alt); }
.section-py         { padding-top: var(--section-py); padding-bottom: var(--section-py); }
.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  font-family: var(--font-body);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  letter-spacing: 0.01em;
}
.btn-primary-brand {
  background-color: var(--color-primary);
  color: #fff;
  border: 2px solid var(--color-primary);
  padding: 0.65rem 1.6rem;
}
.btn-primary-brand:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fff;
  box-shadow: var(--shadow-btn);
  transform: translateY(-1px);
}
.btn-outline-brand {
  background-color: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-border);
  padding: 0.65rem 1.6rem;
}
.btn-outline-brand:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
  transform: translateY(-1px);
}
.btn-white {
  background-color: #fff;
  color: var(--color-text);
  border: 2px solid #fff;
  padding: 0.65rem 1.6rem;
}
.btn-white:hover {
  background-color: var(--color-primary-pale);
  border-color: var(--color-primary-pale);
  color: var(--color-text);
  transform: translateY(-1px);
}

/* ── Navbar ───────────────────────────────────────────────── */
.navbar {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding-top: 1rem;
  padding-bottom: 1rem;
}
.navbar-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text) !important;
  letter-spacing: -0.02em;
}
.navbar-brand span {
  color: inherit;
  border-bottom: 2.5px solid var(--color-primary);
  padding-bottom: 0.04em;
}
.nav-link {
  font-weight: 500;
  color: var(--color-text-mid) !important;
  padding-left: 1rem !important;
  padding-right: 1rem !important;
  transition: color var(--transition);
}
.nav-link:hover,
.nav-link.active {
  color: var(--color-text) !important;
}
.navbar-toggler {
  border-color: var(--color-border);
}
.navbar-toggler:focus { box-shadow: none; }

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  background: var(--color-bg);
  padding-top: 6rem;
  padding-bottom: 6rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(28, 28, 28, 0.06) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.5;
  pointer-events: none;
}
.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  display: block;
}
.hero-heading {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  line-height: 1.20;
  color: var(--color-text);
  margin-bottom: 1.5rem;
  letter-spacing: -0.020em;
}
.hero-heading .accent {
  color: inherit;
  border-bottom: 3px solid var(--color-primary);
  padding-bottom: 0.04em;
}
.hero-sub {
  font-size: 1.125rem;
  color: var(--color-text-mid);
  max-width: 580px;
  margin: 0 auto 2.25rem;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Proof Strip ──────────────────────────────────────────── */
.proof-strip {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 1.5rem 0;
}
.proof-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-mid);
}
.proof-item i {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* ── Wave Dividers ────────────────────────────────────────── */
.wave-down,
.wave-up {
  display: block;
  width: 100%;
  overflow: hidden;
  line-height: 0;
  margin: 0;
}
.wave-down svg,
.wave-up svg {
  display: block;
  width: 100%;
}

/* ── Pain Points Section ──────────────────────────────────── */
.pain-section {
  background-color: var(--color-surface-alt);
  padding-top: var(--section-py);
  padding-bottom: var(--section-py);
}
.pain-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
  border-left: 3px solid var(--color-border);
  height: 100%;
  transition: transform var(--transition), box-shadow var(--transition);
}
.pain-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(28, 28, 28, 0.1);
}
.pain-card .icon-wrap {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-surface-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  flex-shrink: 0;
}
.pain-card .icon-wrap i {
  font-size: 1.2rem;
  color: var(--color-text-muted);
}
.pain-card h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}
.pain-card p {
  font-size: 0.9375rem;
  color: var(--color-text-mid);
  margin: 0;
  line-height: 1.6;
}

/* ── Services Section ─────────────────────────────────────── */
.services-section {
  background-color: var(--color-surface);
  padding-top: var(--section-py);
  padding-bottom: var(--section-py);
}
.service-card {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  height: 100%;
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-border);
  border-radius: var(--radius) var(--radius) 0 0;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(28, 28, 28, 0.1);
}
.service-card .service-icon {
  font-size: 2rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  display: block;
}
.service-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.service-card p {
  font-size: 0.9375rem;
  color: var(--color-text-mid);
  margin: 0;
  line-height: 1.65;
}
.service-card .outcome-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 1.25rem;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: 0.03em;
}
.service-card .outcome-tag i { font-size: 0.85rem; }

/* ── How It Works ─────────────────────────────────────────── */
.how-section {
  background-color: var(--color-surface-alt);
  padding-top: var(--section-py);
  padding-bottom: var(--section-py);
}
.steps-wrapper {
  display: flex;
  gap: 0;
  position: relative;
  align-items: flex-start;
}
.steps-wrapper::before {
  content: '';
  position: absolute;
  top: 2rem;
  left: calc(16.666% + 1rem);
  right: calc(16.666% + 1rem);
  height: 2px;
  background: var(--color-border);
  z-index: 0;
}
.step {
  flex: 1;
  text-align: center;
  padding: 0 1.25rem;
  position: relative;
  z-index: 1;
}
.step-number {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background: var(--color-text);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  box-shadow: 0 4px 12px rgba(28, 28, 28, 0.18);
}
.step h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.step p {
  font-size: 0.9rem;
  color: var(--color-text-mid);
  margin: 0;
  line-height: 1.6;
}

/* ── About ────────────────────────────────────────────────── */
.about-section {
  background-color: var(--color-surface);
  padding-top: var(--section-py);
  padding-bottom: var(--section-py);
}
.about-avatar {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: var(--color-surface-alt);
  border: 4px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 4rem;
  color: var(--color-text-muted);
  margin: 0 auto;
  overflow: hidden;
}
.about-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.about-text h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin-bottom: 1rem;
}
.about-text p {
  color: var(--color-text-mid);
  margin-bottom: 1rem;
}
.about-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}
.about-pill {
  background: var(--color-surface-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  padding: 0.3rem 0.9rem;
  font-size: 0.84rem;
  font-weight: 600;
}

/* ── CTA Band ─────────────────────────────────────────────── */
.cta-band {
  background-color: var(--color-primary);
  padding: 5rem 0;
  text-align: center;
}
.cta-band h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  color: #fff;
  margin-bottom: 0.875rem;
  letter-spacing: -0.02em;
}
.cta-band p {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}
.cta-band .btn-white:hover {
  background-color: rgba(255, 255, 255, 0.15);
  border-color: #fff;
  color: #fff;
}

/* ── Footer ───────────────────────────────────────────────── */
footer {
  background-color: var(--color-text);
  color: rgba(255, 255, 255, 0.65);
  padding: 3rem 0 0;
  font-size: 0.875rem;
}
footer a {
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  transition: color var(--transition);
}
footer a:hover { color: #fff; }
.footer-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  display: block;
  margin-bottom: 0.75rem;
}
.footer-about {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  margin: 0;
}
.footer-col-heading {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 0.75rem;
}
.footer-affiliate-marker {
  color: rgba(255, 255, 255, 0.4);
}
.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.footer-coupon-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.footer-coupon {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.35);
  font-family: monospace;
  letter-spacing: 0.03em;
}
.footer-top {
  padding-bottom: 2.5rem;
  gap: 2rem 0;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 1.25rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-disclaimer {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.35);
}

/* ── Section Headings ─────────────────────────────────────── */
.section-heading {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.020em;
  margin-bottom: 0.75rem;
}
.section-sub {
  font-size: 1.0625rem;
  color: var(--color-text-mid);
  max-width: 540px;
  line-height: 1.65;
  margin-bottom: 0;
}

/* ── Contact Page ─────────────────────────────────────────── */
.contact-section {
  min-height: calc(100vh - 70px);
  background-color: var(--color-bg);
  padding-top: var(--section-py);
  padding-bottom: var(--section-py);
}
.contact-form-wrap {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}
.form-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text);
  margin-bottom: 0.4rem;
}
.form-control,
.form-select {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.15);
  background-color: #fff;
}
textarea.form-control { resize: vertical; min-height: 140px; }
.form-success {
  display: none;
  background: #f0faf0;
  border: 1.5px solid #6dbf7e;
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  color: #1d6b2e;
  font-weight: 500;
}
.contact-info-item {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  margin-bottom: 1.25rem;
}
.contact-info-item i, .form-error i {
  color: var(--color-primary-dark);
  font-size: 1.15rem;
  margin-top: 0.15rem;
  flex-shrink: 0;
}
.contact-info-item span {
  font-size: 0.9375rem;
  color: var(--color-text-mid);
}

/* ── Legal Pages (Imprint / Privacy) ─────────────────────── */
.legal-section {
  background-color: var(--color-bg);
  padding-top: calc(var(--section-py) * 0.8);
  padding-bottom: calc(var(--section-py) * 0.8);
}
.legal-content {
  max-width: 720px;
}
.legal-content h1 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin-bottom: 0.5rem;
}
.legal-content .last-updated {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  display: block;
}
.legal-content h2 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}
.legal-content p,
.legal-content li {
  color: var(--color-text-mid);
  font-size: 0.9375rem;
  line-height: 1.7;
}
.legal-content ul {
  padding-left: 1.25rem;
}
.legal-content a {
  color: var(--color-primary-dark);
}

/* ── 404 Page ─────────────────────────────────────────────── */
.not-found-section {
  min-height: calc(100vh - 70px);
  display: flex;
  align-items: center;
  background-color: var(--color-bg);
}
.not-found-section .big-number {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(6rem, 20vw, 12rem);
  line-height: 1;
  color: var(--color-border);
  letter-spacing: -0.04em;
}

/* ── Animations ───────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.animate-fade-up {
  animation: fadeUp 0.6s ease both;
}
.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.22s; }
.animate-delay-3 { animation-delay: 0.34s; }

/* ── Responsive Tweaks ────────────────────────────────────── */
@media (max-width: 991.98px) {
  :root { --section-py: 4rem; }
  .steps-wrapper {
    flex-direction: column;
    align-items: center;
    gap: 2rem;
  }
  .steps-wrapper::before { display: none; }
  .step { width: 100%; max-width: 340px; }
  .about-avatar { width: 160px; height: 160px; font-size: 3rem; }
}
@media (max-width: 575.98px) {
  :root { --section-py: 3rem; }
  .hero { padding-top: 4rem; padding-bottom: 4rem; }
  .contact-form-wrap { padding: 1.5rem; }
  .footer-col { text-align: center; }
  .footer-nav-list { align-items: center; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ── Insight quote (Services section) ─────────────────── */
.insight-quote {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--color-primary);
  border-left: 3px solid var(--color-primary);
  padding-left: 1.25rem;
  margin: 0 auto 1.25rem;
  max-width: 680px;
  text-align: left;
}

/* ── Results / Case Studies section ───────────────────── */
.results-section {
  padding: var(--section-py) 0;
  background: var(--color-surface-alt);
}

.case-study-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 2rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}

.case-study-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(28, 28, 28, 0.1);
}

.cs-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-pale);
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  align-self: flex-start;
}

.cs-block {
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--color-surface-alt);
}

.cs-block.cs-after {
  background: var(--color-primary-pale);
}

.cs-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.35rem;
}

.cs-block p:last-child {
  margin-bottom: 0;
  font-size: 0.9rem;
  color: var(--color-text-mid);
}

.cs-summary {
  margin-top: auto;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  overflow: hidden;
}

.cs-summary-header {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-pale);
  padding: 0.4rem 1rem;
  border-bottom: 1.5px solid var(--color-border);
}

.cs-summary-body {
  padding: 0.85rem 1rem;
  background: var(--color-surface);
}

.cs-summary-outcome {
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 0.6rem;
}

.cs-summary-outcome .bi {
  flex-shrink: 0;
  margin-top: 0.05rem;
  color: var(--color-primary);
}

.cs-summary-quote {
  font-style: italic;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-mid);
  border-top: 1px solid var(--color-border);
  padding-top: 0.6rem;
  margin: 0;
}