/* ========================================
   CSS Reset & Common Styles
   ======================================== */

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-weight: 400;
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.5;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

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

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

ul, ol {
  list-style: none;
}

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

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

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-2xl);
  }
}

@media (min-width: 1280px) {
  .container {
    padding: 0;
  }
}

/* Section Heading */
.section-heading {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.section-heading__label {
  font-family: var(--font-en);
  font-size: var(--text-regular);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  line-height: 1.5;
}

.section-heading__title {
  font-size: var(--text-h1);
  font-weight: 700;
  color: var(--color-text-dark);
  letter-spacing: -0.02em;
  line-height: 1.29;
}

.section-heading__desc {
  font-size: var(--text-body);
  font-weight: 400;
  color: var(--color-text);
  letter-spacing: -0.055rem;
  line-height: 1.5;
}

.section-heading--center {
  text-align: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--btn-height);
  padding: 0 var(--btn-padding);
  border-radius: var(--radius-pill);
  font-family: var(--font-primary);
  font-size: var(--text-body);
  font-weight: 400;
  letter-spacing: -0.055rem;
  line-height: 1.5;
  white-space: nowrap;
  transition: opacity 0.2s ease;
}

.btn:hover {
  opacity: 0.85;
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn--dark {
  background-color: var(--color-dark);
  color: var(--color-white);
}

.btn--white {
  background-color: var(--color-white);
  color: var(--color-dark);
}

/* Responsive Helpers */
.mo-only {
  display: inline;
}

@media (min-width: 768px) {
  .mo-only {
    display: none;
  }
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* State Classes */
.is-active {
  /* context-specific */
}

.is-open {
  /* context-specific */
}

.is-disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* Fade-In-Up Animation (data-motion) */
[data-motion] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-motion].is_animated {
  opacity: 1;
  transform: translateY(0);
}

[data-motion] [data-motion-child] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-motion].is_animated [data-motion-child] {
  opacity: 1;
  transform: translateY(0);
}

[data-motion].is_animated [data-motion-child]:nth-child(1) { transition-delay: 0.1s; }
[data-motion].is_animated [data-motion-child]:nth-child(2) { transition-delay: 0.2s; }
[data-motion].is_animated [data-motion-child]:nth-child(3) { transition-delay: 0.3s; }
[data-motion].is_animated [data-motion-child]:nth-child(4) { transition-delay: 0.4s; }
[data-motion].is_animated [data-motion-child]:nth-child(5) { transition-delay: 0.5s; }
[data-motion].is_animated [data-motion-child]:nth-child(6) { transition-delay: 0.6s; }
[data-motion].is_animated [data-motion-child]:nth-child(7) { transition-delay: 0.7s; }
[data-motion].is_animated [data-motion-child]:nth-child(8) { transition-delay: 0.8s; }

/* Mobile First Typography Scale */
@media (min-width: 768px) {
  .section-heading {
    gap: var(--space-xl);
  }

  .section-heading__title {
    font-size: 2.5rem;
  }
}

@media (min-width: 1024px) {
  .section-heading__title {
    font-size: var(--text-h1);
  }
}