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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--color-background);
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main { flex: 1; }

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
  font-weight: 400;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
h4 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
  font-size: 1.05rem;
  line-height: 1.8;
}

.iber-container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
}

section {
  padding: clamp(4rem, 8vw, 7rem) 0;
  position: relative;
}

/* ── Buttons ── */
.iber-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  font-family: var(--font-primary);
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.iber-btn-primary {
  background-color: var(--color-primary);
  color: var(--color-background);
  border-color: var(--color-primary);
}
.iber-btn-primary:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: var(--color-background);
}

.iber-btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.iber-btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-background);
}

/* ── Header ── */
.iber-main-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(12, 14, 21, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: all 0.3s;
}

.iber-top-bar {
  background-color: var(--color-footer-bg);
  padding: 0.5rem 0;
  font-size: 0.8rem;
  border-bottom: 1px solid var(--color-border);
}

.iber-top-bar-content {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 2rem;
}

.iber-top-bar-content a {
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

.iber-top-bar-content a:hover {
  color: var(--color-primary);
}

.iber-navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.iber-logo {
  font-family: var(--font-secondary);
  font-size: 1.8rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.iber-nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.iber-nav-link {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text);
  padding: 0.5rem 0;
  position: relative;
}

.iber-nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--color-primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
  transform-origin: right;
}

.iber-nav-link:hover::after,
.iber-nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}
.iber-nav-link:hover,
.iber-nav-link.active {
  color: var(--color-primary);
}

.iber-hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1100;
}

.iber-hamburger span {
  display: block;
  width: 30px;
  height: 2px;
  background-color: var(--color-primary);
  transition: 0.3s;
}

/* ── Hero ── */
.iber-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + 40px);
  position: relative;
}

.iber-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.iber-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.iber-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(12, 14, 21, 1) 0%, rgba(12, 14, 21, 0.7) 100%);
}

.iber-hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.iber-hero h1 {
  color: var(--color-primary);
  text-shadow: 0 0 40px rgba(201, 168, 76, 0.2);
}

.iber-hero h1 em {
  font-style: italic;
  font-weight: 300;
  color: var(--color-secondary);
}

.iber-hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text);
  max-width: 600px;
  margin-bottom: 3rem;
}

/* ── Stats Bar ── */
.iber-stats {
  background-color: var(--color-primary);
  padding: 4rem 0;
}

.iber-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.iber-stat-val {
  font-family: var(--font-secondary);
  font-size: 3.5rem;
  color: var(--color-background);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.iber-stat-label {
  color: rgba(12, 14, 21, 0.8);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
}

/* ── Services ── */
.iber-services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.iber-service-card {
  background-color: var(--color-surface);
  border-left: 2px solid var(--color-primary);
  padding: 3rem 2rem;
  transition: transform 0.3s, box-shadow 0.3s;
}

.iber-service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.iber-service-card h3 {
  color: var(--color-secondary);
  margin-bottom: 1.5rem;
}

.iber-service-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

/* ── Method ── */
.iber-method-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.iber-method-step {
  display: flex;
  gap: 2rem;
  margin-bottom: 3rem;
}

.iber-method-num {
  font-family: var(--font-secondary);
  font-size: 4rem;
  font-style: italic;
  color: var(--color-primary);
  line-height: 0.8;
}

.iber-method-text h4 {
  color: var(--color-secondary);
  margin-bottom: 0.5rem;
}

/* ── Testimonials ── */
.iber-testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.iber-testimonial-card {
  background-color: var(--color-surface-dark);
  padding: 3rem;
  position: relative;
  border: 1px solid var(--color-border);
}

.iber-testimonial-card::before {
  content: '”';
  position: absolute;
  top: 1rem;
  left: 2rem;
  font-family: var(--font-secondary);
  font-size: 6rem;
  font-style: italic;
  color: var(--color-primary);
  opacity: 0.2;
  line-height: 1;
}

.iber-testimonial-card blockquote {
  font-size: 1.1rem;
  font-style: italic;
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
}

.iber-testimonial-card cite {
  display: block;
  font-style: normal;
  color: var(--color-primary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.85rem;
}

/* ── CTA ── */
.iber-cta-section {
  background-color: var(--color-primary);
  color: var(--color-background);
  text-align: center;
  padding: 6rem 0;
}

.iber-cta-section h2, .iber-cta-section p {
  color: var(--color-background);
}

.iber-cta-form {
  max-width: 500px;
  margin: 3rem auto 0;
  display: flex;
}

.iber-cta-form input {
  flex: 1;
  padding: 1rem 1.5rem;
  border: none;
  background-color: var(--color-surface);
  color: var(--color-text);
  font-family: var(--font-primary);
}

.iber-cta-form button {
  background-color: var(--color-background);
  color: var(--color-primary);
  border: none;
  padding: 0 2rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: background 0.3s;
}

.iber-cta-form button:hover {
  background-color: var(--color-surface-dark);
}

/* ── Footer ── */
.iber-footer {
  background-color: var(--color-footer-bg);
  padding: 5rem 0 2rem;
  border-top: 1px solid var(--color-border);
}

.iber-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.iber-footer-col h4 {
  color: var(--color-primary);
  font-family: var(--font-primary);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.iber-footer-col ul li {
  margin-bottom: 0.75rem;
}

.iber-footer-col a {
  color: var(--color-text-muted);
}

.iber-footer-col a:hover {
  color: var(--color-primary);
}

.iber-footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.iber-footer-bottom nav {
  display: flex;
  gap: 1.5rem;
}

/* ── Utilities ── */
.iber-fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.iber-fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Mobile Menu ── */
.iber-mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  background-color: var(--color-surface);
  z-index: 1050;
  padding: 6rem 2rem 2rem;
  transition: right 0.4s ease;
  box-shadow: -10px 0 30px rgba(0,0,0,0.5);
}

.iber-mobile-drawer.open {
  right: 0;
}

.iber-mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.8);
  z-index: 1040;
  opacity: 0;
  visibility: hidden;
  transition: 0.3s;
}

.iber-mobile-overlay.open {
  opacity: 1;
  visibility: visible;
}

/* ── Accordion ── */
.iber-accordion-item {
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 1rem;
}
.iber-accordion-trigger {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 1.5rem 0;
  color: var(--color-secondary);
  font-family: var(--font-secondary);
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.iber-accordion-trigger::after {
  content: '+';
  color: var(--color-primary);
  font-size: 1.5rem;
  font-family: var(--font-primary);
}
.iber-accordion-trigger.active::after {
  content: '-';
}
.iber-accordion-content {
  display: none;
  padding-bottom: 1.5rem;
  color: var(--color-text-muted);
}

@media (max-width: 992px) {
  .iber-nav-menu, .iber-navbar .iber-btn { display: none; }
  .iber-hamburger { display: flex; }
  .iber-footer-grid { grid-template-columns: 1fr 1fr; }
  .iber-method-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .iber-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .iber-services-grid, .iber-testimonials-grid { grid-template-columns: 1fr; }
  .iber-footer-grid { grid-template-columns: 1fr; }
  .iber-footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}