/* ==========================================================================
   doctore.ar - Corporate Clean Design
   ========================================================================== */

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

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

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

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

/* ==========================================================================
   Utility Classes
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--content-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--content-padding);
  padding-right: var(--content-padding);
}

.section {
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
}

.section--large {
  padding-top: var(--section-padding-y-lg);
  padding-bottom: var(--section-padding-y-lg);
}

.section__header {
  text-align: center;
  margin-bottom: var(--spacing-12);
}

.section__subtitle {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary-500);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wider);
  margin-bottom: var(--spacing-3);
}

.section__title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-4);
}

.section__description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  .section__title {
    font-size: var(--font-size-4xl);
  }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--btn-padding-y) var(--btn-padding-x);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border-radius: var(--radius-lg);
  transition: var(--transition-base);
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--color-primary-500);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
  background-color: var(--color-primary-600);
  box-shadow: var(--shadow-primary);
  transform: translateY(-2px);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--secondary {
  background-color: var(--color-secondary-500);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}

.btn--secondary:hover {
  background-color: var(--color-secondary-600);
  box-shadow: var(--shadow-secondary);
  transform: translateY(-2px);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-primary-500);
  border: 2px solid var(--color-primary-500);
}

.btn--outline:hover {
  background-color: var(--color-primary-500);
  color: var(--color-text-inverse);
  transform: translateY(-2px);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-text-secondary);
}

.btn--ghost:hover {
  background-color: var(--color-neutral-100);
  color: var(--color-text-primary);
}

.btn--sm {
  padding: var(--btn-padding-y-sm) var(--btn-padding-x-sm);
  font-size: var(--font-size-sm);
}

.btn--lg {
  padding: var(--btn-padding-y-lg) var(--btn-padding-x-lg);
  font-size: var(--font-size-lg);
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background-color: var(--nav-background);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  z-index: var(--z-index-fixed);
  transition: var(--transition-base);
}

.nav--scrolled {
  height: var(--nav-height-scrolled);
  background-color: var(--nav-background-scrolled);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.nav__logo-icon {
  width: 2rem;
  height: 2rem;
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav__logo-icon svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-text-inverse);
}

.nav__menu {
  display: none;
  align-items: center;
  gap: var(--spacing-8);
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: var(--transition-fast);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary-500);
  transition: var(--transition-fast);
}

.nav__link:hover {
  color: var(--color-primary-500);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.nav__lang {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  background-color: var(--color-neutral-100);
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
}

.nav__lang-btn {
  padding: var(--spacing-1) var(--spacing-2);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-tertiary);
  border-radius: var(--radius-base);
  transition: var(--transition-fast);
}

.nav__lang-btn:hover {
  color: var(--color-text-primary);
}

.nav__lang-btn--active {
  background-color: var(--color-surface-elevated);
  color: var(--color-primary-500);
  box-shadow: var(--shadow-xs);
}

.nav__mobile-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-2);
}

.nav__mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
}

.nav__mobile-toggle--open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__mobile-toggle--open span:nth-child(2) {
  opacity: 0;
}

.nav__mobile-toggle--open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.nav__mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-surface-elevated);
  padding: var(--spacing-6);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
}

.nav__mobile-menu--open {
  opacity: 1;
  visibility: visible;
}

.nav__mobile-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.nav__mobile-link {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  padding: var(--spacing-3) 0;
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition-fast);
}

.nav__mobile-link:hover {
  color: var(--color-primary-500);
}

@media (min-width: 1024px) {
  .nav__menu {
    display: flex;
  }

  .nav__mobile-toggle {
    display: none;
  }

  .nav__mobile-menu {
    display: none !important;
  }
}

@media (max-width: 1023px) {
  .nav__mobile-menu {
    display: block;
  }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-height) + var(--spacing-8));
  padding-bottom: var(--spacing-16);
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-neutral-100) 100%);
  position: relative;
  overflow: hidden;
}

.hero__bg-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    radial-gradient(circle at 25% 25%, var(--color-primary-100) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, var(--color-secondary-100) 0%, transparent 50%);
  opacity: 0.5;
  pointer-events: none;
}

.hero__container {
  position: relative;
  z-index: 1;
}

.hero__content {
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-4);
  background-color: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-6);
  animation: fadeInUp 0.6s ease-out;
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-success);
  border-radius: var(--radius-full);
  animation: pulse 2s ease-in-out infinite;
}

.hero__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-6);
  animation: fadeInUp 0.6s ease-out 0.1s backwards;
}

.hero__title-highlight {
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-8);
  animation: fadeInUp 0.6s ease-out 0.2s backwards;
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  justify-content: center;
  animation: fadeInUp 0.6s ease-out 0.3s backwards;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-6);
  margin-top: var(--spacing-12);
  padding-top: var(--spacing-12);
  border-top: 1px solid var(--color-border);
  animation: fadeInUp 0.6s ease-out 0.4s backwards;
}

.hero__stat {
  text-align: center;
}

.hero__stat-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: 1;
  margin-bottom: var(--spacing-2);
}

.hero__stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

@media (min-width: 640px) {
  .hero__actions {
    flex-direction: row;
  }
}

@media (min-width: 768px) {
  .hero__title {
    font-size: var(--font-size-5xl);
  }

  .hero__description {
    font-size: var(--font-size-xl);
  }
}

@media (min-width: 1024px) {
  .hero__title {
    font-size: var(--font-size-6xl);
  }
}

/* ==========================================================================
   TurnosMedicos Section (Star Product)
   ========================================================================== */

.product {
  background-color: var(--color-surface-elevated);
  position: relative;
  overflow: hidden;
}

.product__container {
  display: grid;
  gap: var(--spacing-12);
  align-items: center;
}

.product__content {
  order: 2;
}

.product__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-1) var(--spacing-3);
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-inverse);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  margin-bottom: var(--spacing-4);
}

.product__title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-4);
}

.product__description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-8);
}

.product__features {
  display: grid;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-8);
}

.product__feature {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
}

.product__feature-icon {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  color: var(--color-secondary-500);
}

.product__feature-text {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
}

.product__feature-text strong {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
}

.product__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
}

.product__visual {
  order: 1;
  position: relative;
}

.product__mockup {
  position: relative;
  background: linear-gradient(135deg, var(--color-neutral-100), var(--color-neutral-200));
  border-radius: var(--radius-2xl);
  padding: var(--spacing-4);
  box-shadow: var(--shadow-xl);
}

.product__mockup-screen {
  background-color: var(--color-surface-elevated);
  border-radius: var(--radius-xl);
  padding: var(--spacing-6);
  min-height: 300px;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.product__mockup-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding-bottom: var(--spacing-4);
  border-bottom: 1px solid var(--color-border);
}

.product__mockup-dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
}

.product__mockup-dot--red {
  background-color: #ef4444;
}

.product__mockup-dot--yellow {
  background-color: #f59e0b;
}

.product__mockup-dot--green {
  background-color: #22c55e;
}

.product__mockup-content {
  flex: 1;
  display: grid;
  gap: var(--spacing-3);
}

.product__mockup-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-3);
  background-color: var(--color-neutral-50);
  border-radius: var(--radius-lg);
}

.product__mockup-avatar {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary-400), var(--color-primary-600));
}

.product__mockup-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

.product__mockup-line {
  height: 8px;
  background-color: var(--color-neutral-200);
  border-radius: var(--radius-full);
}

.product__mockup-line--short {
  width: 60%;
}

.product__mockup-badge {
  padding: var(--spacing-1) var(--spacing-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  background-color: var(--color-secondary-100);
  color: var(--color-secondary-700);
  border-radius: var(--radius-full);
}

.product__glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120%;
  height: 120%;
  background: radial-gradient(circle, var(--color-primary-200) 0%, transparent 70%);
  opacity: 0.3;
  pointer-events: none;
  z-index: -1;
}

@media (min-width: 768px) {
  .product__title {
    font-size: var(--font-size-4xl);
  }

  .product__mockup-screen {
    min-height: 400px;
  }
}

@media (min-width: 1024px) {
  .product__container {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
  }

  .product__content {
    order: 1;
  }

  .product__visual {
    order: 2;
  }
}

/* ==========================================================================
   Services Section
   ========================================================================== */

.services {
  background-color: var(--color-surface);
}

.services__grid {
  display: grid;
  gap: var(--spacing-6);
}

.service-card {
  background-color: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  transition: var(--transition-base);
}

.service-card:hover {
  border-color: var(--color-primary-200);
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-4px);
}

.service-card__icon {
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary-100), var(--color-secondary-100));
  border-radius: var(--radius-xl);
  margin-bottom: var(--spacing-4);
}

.service-card__icon svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--color-primary-600);
}

.service-card__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-3);
}

.service-card__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-4);
}

.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary-500);
  transition: var(--transition-fast);
}

.service-card__link:hover {
  gap: var(--spacing-3);
  color: var(--color-primary-600);
}

.service-card__link svg {
  width: 1rem;
  height: 1rem;
  transition: var(--transition-fast);
}

@media (min-width: 768px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ==========================================================================
   Pricing Section
   ========================================================================== */

.pricing {
  background-color: var(--color-neutral-100);
}

.pricing__grid {
  display: grid;
  gap: var(--spacing-6);
  max-width: 72rem;
  margin-left: auto;
  margin-right: auto;
}

.pricing-card {
  background-color: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: var(--spacing-8);
  position: relative;
  transition: var(--transition-base);
}

.pricing-card:hover {
  box-shadow: var(--shadow-lg);
}

.pricing-card--featured {
  border-color: var(--color-primary-500);
  box-shadow: var(--shadow-primary);
}

.pricing-card__badge {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: var(--spacing-1) var(--spacing-4);
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-inverse);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

.pricing-card__header {
  text-align: center;
  margin-bottom: var(--spacing-6);
  padding-bottom: var(--spacing-6);
  border-bottom: 1px solid var(--color-border);
}

.pricing-card__name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-2);
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--spacing-1);
  margin-bottom: var(--spacing-2);
}

.pricing-card__currency {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
}

.pricing-card__amount {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: 1;
}

.pricing-card__period {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.pricing-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-8);
}

.pricing-card__feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.pricing-card__feature svg {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-secondary-500);
}

.pricing-card__action {
  width: 100%;
}

@media (min-width: 768px) {
  .pricing__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .pricing__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .pricing-card--featured {
    transform: scale(1.05);
  }
}

/* ==========================================================================
   About Section
   ========================================================================== */

.about {
  background-color: var(--color-surface-elevated);
}

.about__container {
  display: grid;
  gap: var(--spacing-12);
  align-items: center;
}

.about__content {
  max-width: 32rem;
}

.about__title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-6);
}

.about__text {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-4);
}

.about__values {
  display: grid;
  gap: var(--spacing-4);
  margin-top: var(--spacing-8);
}

.about__value {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-4);
  padding: var(--spacing-4);
  background-color: var(--color-neutral-50);
  border-radius: var(--radius-lg);
}

.about__value-icon {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
  border-radius: var(--radius-lg);
  color: var(--color-text-inverse);
}

.about__value-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.about__value-content {
  flex: 1;
}

.about__value-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-1);
}

.about__value-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.about__visual {
  position: relative;
}

.about__image-container {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.about__image {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  background: linear-gradient(135deg, var(--color-primary-200), var(--color-secondary-200));
  display: flex;
  align-items: center;
  justify-content: center;
}

.about__image-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-4);
  color: var(--color-primary-600);
}

.about__image-placeholder svg {
  width: 4rem;
  height: 4rem;
}

.about__image-placeholder span {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

@media (min-width: 768px) {
  .about__title {
    font-size: var(--font-size-4xl);
  }
}

@media (min-width: 1024px) {
  .about__container {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
  }
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact {
  background-color: var(--color-surface);
}

.contact__container {
  display: grid;
  gap: var(--spacing-12);
}

.contact__info {
  max-width: 24rem;
}

.contact__title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-4);
}

.contact__text {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-8);
}

.contact__methods {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.contact__method {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.contact__method-icon {
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary-100);
  border-radius: var(--radius-lg);
  color: var(--color-primary-600);
}

.contact__method-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.contact__method-content {
  flex: 1;
}

.contact__method-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  margin-bottom: var(--spacing-1);
}

.contact__method-value {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.contact__form-wrapper {
  background-color: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: var(--spacing-8);
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.form-group__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.form-group__input,
.form-group__textarea {
  width: 100%;
  padding: var(--spacing-3) var(--input-padding-x);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  border: var(--input-border-width) solid var(--color-border);
  border-radius: var(--input-radius);
  transition: var(--transition-fast);
}

.form-group__input:focus,
.form-group__textarea:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px var(--color-primary-100);
}

.form-group__input::placeholder,
.form-group__textarea::placeholder {
  color: var(--color-text-tertiary);
}

.form-group__textarea {
  min-height: 8rem;
  resize: vertical;
}

.form-row {
  display: grid;
  gap: var(--spacing-5);
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .contact__container {
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-16);
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background-color: var(--color-neutral-900);
  color: var(--color-neutral-300);
  padding-top: var(--spacing-16);
  padding-bottom: var(--spacing-8);
}

.footer__container {
  display: grid;
  gap: var(--spacing-12);
}

.footer__brand {
  max-width: 20rem;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-inverse);
  margin-bottom: var(--spacing-4);
}

.footer__logo-icon {
  width: 2rem;
  height: 2rem;
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer__logo-icon svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-text-inverse);
}

.footer__description {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-6);
}

.footer__social {
  display: flex;
  gap: var(--spacing-3);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background-color: var(--color-neutral-800);
  border-radius: var(--radius-lg);
  color: var(--color-neutral-400);
  transition: var(--transition-fast);
}

.footer__social-link:hover {
  background-color: var(--color-primary-500);
  color: var(--color-text-inverse);
}

.footer__social-link svg {
  width: 1.25rem;
  height: 1.25rem;
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-8);
}

.footer__column-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-inverse);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  margin-bottom: var(--spacing-4);
}

.footer__column-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: var(--color-neutral-400);
  transition: var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-text-inverse);
}

.footer__bottom {
  margin-top: var(--spacing-12);
  padding-top: var(--spacing-8);
  border-top: 1px solid var(--color-neutral-800);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  text-align: center;
}

.footer__copyright {
  font-size: var(--font-size-sm);
  color: var(--color-neutral-500);
}

.footer__legal {
  display: flex;
  justify-content: center;
  gap: var(--spacing-6);
}

.footer__legal-link {
  font-size: var(--font-size-sm);
  color: var(--color-neutral-500);
  transition: var(--transition-fast);
}

.footer__legal-link:hover {
  color: var(--color-neutral-300);
}

@media (min-width: 768px) {
  .footer__container {
    grid-template-columns: 1.5fr 2fr;
  }

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

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Scroll Animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll--visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}

.stagger-children--visible > *:nth-child(1) { transition-delay: 0.1s; }
.stagger-children--visible > *:nth-child(2) { transition-delay: 0.2s; }
.stagger-children--visible > *:nth-child(3) { transition-delay: 0.3s; }
.stagger-children--visible > *:nth-child(4) { transition-delay: 0.4s; }
.stagger-children--visible > *:nth-child(5) { transition-delay: 0.5s; }
.stagger-children--visible > *:nth-child(6) { transition-delay: 0.6s; }

.stagger-children--visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Language Transition
   ========================================================================== */

[data-i18n] {
  transition: opacity 0.2s ease-out;
}

.lang-switching [data-i18n] {
  opacity: 0.5;
}