/* ========================================================================
   ESCUELA SAN MIGUEL — Design System v3.0
   Visualmente mejorado con animaciones, glassmorphism y micro-interacciones
   ======================================================================== */

/* ---------- DESIGN TOKENS ---------- */
:root {
  --color-primary-50: #eef5ff;
  --color-primary-100: #dbe8ff;
  --color-primary-200: #bfd7ff;
  --color-primary-300: #93bdff;
  --color-primary-400: #6098ff;
  --color-primary-500: #004aad;
  --color-primary-600: #003d94;
  --color-primary-700: #00307a;
  --color-primary-800: #00245f;
  --color-primary-900: #001a45;

  --color-secondary-50: #fffce6;
  --color-secondary-100: #fff7b3;
  --color-secondary-200: #fff180;
  --color-secondary-300: #ffe94d;
  --color-secondary-400: #ffd700;
  --color-secondary-500: #e6c200;
  --color-secondary-600: #b39a00;
  --color-secondary-700: #806e00;
  --color-secondary-800: #4d4200;
  --color-secondary-900: #1a1600;

  --color-accent: #06b6d4;
  --color-accent-light: #cffafe;

  --color-success: #059669;
  --color-success-bg: #ecfdf5;
  --color-success-border: #a7f3d0;
  --color-error: #dc2626;
  --color-error-bg: #fef2f2;
  --color-error-border: #fecaca;
  --color-warning: #d97706;
  --color-warning-bg: #fffbeb;
  --color-warning-border: #fde68a;
  --color-info: #0284c7;
  --color-info-bg: #f0f9ff;
  --color-info-border: #bae6fd;

  --color-text: #1f2937;
  --color-text-secondary: #6b7280;
  --color-text-tertiary: #9ca3af;
  --color-text-inverse: #ffffff;
  --color-bg: #f8fafc;
  --color-bg-alt: #f1f5f9;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-border-focus: var(--color-primary-500);

  --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;

  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 0 3px rgba(0, 74, 173, 0.15);
  --shadow-glow-gold: 0 0 0 3px rgba(255, 215, 0, 0.2);

  --nav-height: 70px;
  --container-max: 1200px;
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
  --z-toast: 500;
}

/* ---------- BREAKPOINT REFERENCE ----------
   @media (min-width: 480px)  → sm
   @media (min-width: 640px)  → md
   @media (min-width: 768px)  → lg
   @media (min-width: 1024px) → xl
   @media (min-width: 1280px) → 2xl
   @media (min-width: 1536px) → 3xl
   ---------- */

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

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--color-primary-500);
  color: var(--color-text-inverse);
}

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--color-bg-alt); }
::-webkit-scrollbar-thumb { background: var(--color-text-tertiary); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-secondary); }

main { flex: 1; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; }

/* ---------- CONTAINER ---------- */
.container {
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

@media (min-width: 640px) {
  .container { padding: 0 var(--spacing-xl); }
}

@media (min-width: 1280px) {
  .container { max-width: var(--container-max); }
}

/* ---------- TYPOGRAPHY ---------- */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
}

.section-title {
  text-align: center;
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-xl);
  position: relative;
  padding-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
  .section-title { font-size: var(--font-size-4xl); margin-bottom: var(--spacing-2xl); }
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary-500), var(--color-secondary-400), var(--color-primary-500));
  background-size: 200% 100%;
  animation: titleShimmer 3s ease infinite;
  border-radius: var(--radius-full);
}

@keyframes titleShimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ---------- SECTION ---------- */
.section {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

@media (min-width: 768px) {
  .section { padding: var(--spacing-4xl) 0; }
}

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

/* ---------- PAGE HERO ---------- */
.page-hero {
  margin-top: var(--nav-height);
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-primary-700) 50%, var(--color-primary-900) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(255, 215, 0, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(6, 182, 212, 0.06) 0%, transparent 50%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

@media (min-width: 768px) {
  .page-hero { padding: var(--spacing-4xl) 0 var(--spacing-3xl); }
}

.page-hero h1 {
  color: var(--color-text-inverse);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--spacing-xs);
  position: relative;
  animation: heroTitleIn 0.8s ease-out both;
}

@media (min-width: 768px) {
  .page-hero h1 { font-size: var(--font-size-5xl); }
}

@keyframes heroTitleIn {
  from { opacity: 0; transform: translateY(-30px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-hero p {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-base);
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  animation: heroSubIn 0.8s ease-out 0.2s both;
}

@media (min-width: 768px) {
  .page-hero p { font-size: var(--font-size-lg); }
}

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

/* ========================================================================
   NAVBAR
   ======================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(0, 45, 98, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  z-index: var(--z-fixed);
  transition: background var(--transition-base), box-shadow var(--transition-base), height var(--transition-base);
}

.navbar.scrolled {
  background: rgba(0, 20, 50, 0.96);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  height: 62px;
  border-bottom-color: rgba(255, 215, 0, 0.1);
}

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

.navbar-brand {
  color: var(--color-text-inverse);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.3px;
  position: relative;
  transition: transform var(--transition-fast);
}

.navbar-brand:hover { transform: scale(1.02); }

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

.navbar-brand span {
  color: var(--color-secondary-400);
  position: relative;
}

.navbar-brand span::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-secondary-400);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.navbar-brand:hover span::after { transform: scaleX(1); }

.navbar-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-xs);
  background: none;
  border: none;
}

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

.navbar-toggle span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--color-text-inverse);
  border-radius: var(--radius-full);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  transform-origin: center;
}

.navbar-toggle.is-active span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.navbar-toggle.is-active span:nth-child(2) { opacity: 0; }

.navbar-toggle.is-active span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

.navbar-menu {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: rgba(0, 25, 60, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  transform: translateY(-110%);
  opacity: 0;
  transition: transform var(--transition-base), opacity var(--transition-base);
  pointer-events: none;
  border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}

.navbar-menu.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

@media (min-width: 768px) {
  .navbar-menu {
    position: static;
    flex-direction: row;
    background: none;
    backdrop-filter: none;
    padding: 0;
    transform: none;
    opacity: 1;
    pointer-events: auto;
    gap: var(--spacing-xs);
    border-bottom: none;
  }
}

.navbar-link {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  position: relative;
  transition: background var(--transition-fast), color var(--transition-fast);
}

@media (min-width: 768px) {
  .navbar-link {
    font-size: var(--font-size-sm);
    padding: 0.5rem 1rem;
  }

  .navbar-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 70%;
    height: 2px;
    background: var(--color-secondary-400);
    border-radius: var(--radius-full);
    transition: transform var(--transition-base);
  }

  .navbar-link:hover::after { transform: translateX(-50%) scaleX(1); }
}

.navbar-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text-inverse);
}

.navbar-link.is-active {
  background: linear-gradient(135deg, var(--color-secondary-400), var(--color-secondary-500));
  color: var(--color-primary-900);
  font-weight: var(--font-weight-semibold);
  box-shadow: 0 2px 10px rgba(255, 215, 0, 0.3);
}

@media (min-width: 768px) {
  .navbar-link.is-active { background: transparent; color: var(--color-secondary-400); box-shadow: none; }
  .navbar-link.is-active::after { transform: translateX(-50%) scaleX(1); }
}

/* ========================================================================
   HERO CAROUSEL
   ======================================================================== */
.hero-carousel {
  margin-top: var(--nav-height);
  position: relative;
  overflow: hidden;
}

.carousel-track {
  position: relative;
  width: 100%;
  height: 50vh;
  min-height: 300px;
  max-height: 700px;
}

@media (min-width: 640px) { .carousel-track { height: 60vh; min-height: 400px; } }
@media (min-width: 1024px) { .carousel-track { height: 80vh; } }

.carousel-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease-in-out, transform 0.8s ease-in-out;
}

.carousel-slide.is-active { opacity: 1; }

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 6s ease;
}

.carousel-slide.is-active img { transform: scale(1.05); }

.carousel-slide::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.2) 40%, transparent 60%);
}

.carousel-caption {
  position: absolute;
  bottom: var(--spacing-3xl);
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-inverse);
  font-size: clamp(1.25rem, 4vw, 2.5rem);
  font-weight: var(--font-weight-extrabold);
  text-align: center;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.6);
  z-index: 2;
  width: 90%;
  max-width: 800px;
  animation: captionIn 0.8s ease-out both;
  letter-spacing: -0.5px;
}

@keyframes captionIn {
  from { opacity: 0; transform: translateX(-50%) translateY(30px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  color: var(--color-text-inverse);
  font-size: var(--font-size-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  opacity: 0;
}

.hero-carousel:hover .carousel-btn { opacity: 1; }

@media (min-width: 768px) { .carousel-btn { width: 52px; height: 52px; font-size: var(--font-size-xl); } }

.carousel-btn:hover {
  background: var(--color-secondary-400);
  border-color: var(--color-secondary-400);
  color: var(--color-primary-800);
  transform: translateY(-50%) scale(1.1);
}

.carousel-btn--prev { left: var(--spacing-md); }
.carousel-btn--next { right: var(--spacing-md); }

.carousel-dots {
  position: absolute;
  bottom: var(--spacing-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--spacing-sm);
  z-index: 3;
}

.carousel-dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.35);
  border: 2px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: all var(--transition-fast);
}

@media (min-width: 768px) { .carousel-dot { width: 14px; height: 14px; } }

.carousel-dot.is-active {
  background: var(--color-secondary-400);
  border-color: var(--color-secondary-400);
  transform: scale(1.3);
  box-shadow: 0 0 12px rgba(255, 215, 0, 0.5);
}

.carousel-dot:hover { background: rgba(255, 255, 255, 0.7); }

/* ========================================================================
   BUTTONS
   ======================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.5rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  font-family: var(--font-family);
  line-height: 1;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-align: center;
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
}

@media (min-width: 768px) {
  .btn { padding: 0.875rem 2rem; font-size: var(--font-size-base); }
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-glow);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
  color: var(--color-text-inverse);
  box-shadow: 0 4px 14px rgba(0, 74, 173, 0.35);
}

.btn--primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 74, 173, 0.45);
}

.btn--primary:active:not(:disabled) { transform: translateY(0); }

.btn--secondary {
  background: linear-gradient(135deg, var(--color-secondary-400), var(--color-secondary-500));
  color: var(--color-primary-800);
  box-shadow: 0 4px 14px rgba(255, 215, 0, 0.35);
}

.btn--secondary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 215, 0, 0.45);
}

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

.btn--outline:hover:not(:disabled) {
  background: var(--color-primary-50);
  transform: translateY(-2px);
}

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

.btn--ghost:hover:not(:disabled) {
  background: var(--color-bg-alt);
  color: var(--color-text);
}

.btn--danger {
  background: linear-gradient(135deg, var(--color-error), #dc2626);
  color: var(--color-text-inverse);
}

.btn--sm { padding: 0.5rem 1rem; font-size: var(--font-size-xs); }
.btn--lg { padding: 1rem 2.5rem; font-size: var(--font-size-lg); }
.btn--block { width: 100%; }

.btn .spinner {
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: var(--radius-full);
  animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Ripple effect on buttons */
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(255,255,255,0.3) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.4s;
}

.btn:active::after { opacity: 1; }

/* ========================================================================
   FORMS
   ======================================================================== */
.form-group {
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
  transition: color var(--transition-fast);
}

.form-input:focus ~ .form-label,
.form-select:focus ~ .form-label,
.form-textarea:focus ~ .form-label {
  color: var(--color-primary-500);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  appearance: none;
}

.form-input::placeholder,
.form-textarea::placeholder { color: var(--color-text-tertiary); }

.form-input:hover,
.form-select:hover,
.form-textarea:hover { border-color: var(--color-text-tertiary); }

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 4px rgba(0, 74, 173, 0.1);
  transform: translateY(-1px);
}

.form-input.is-error,
.form-select.is-error,
.form-textarea.is-error {
  border-color: var(--color-error);
}

.form-input.is-error:focus,
.form-select.is-error:focus,
.form-textarea.is-error:focus {
  box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.1);
}

.form-error {
  display: none;
  font-size: var(--font-size-xs);
  color: var(--color-error);
  margin-top: var(--spacing-xs);
}

.form-error.is-visible {
  display: flex;
  align-items: center;
  gap: 4px;
  animation: shakeIn 0.3s ease-out;
}

@keyframes shakeIn {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

.form-error::before { content: '⚠'; }

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--spacing-xs);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

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

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.form-checkbox input[type="checkbox"] {
  width: 1.125rem;
  height: 1.125rem;
  accent-color: var(--color-primary-500);
  margin-top: 2px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.form-checkbox input[type="checkbox"]:checked { transform: scale(1.1); }

.form-textarea { min-height: 120px; resize: vertical; }

/* Form message */
.form-message {
  margin-top: var(--spacing-md);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  display: none;
}

.form-message.is-visible { display: block; animation: fadeInUp 0.3s ease-out; }

.form-message--success {
  background: var(--color-success-bg);
  color: #065f46;
  border: 1px solid var(--color-success-border);
}

.form-message--error {
  background: var(--color-error-bg);
  color: #991b1b;
  border: 1px solid var(--color-error-border);
}

/* ========================================================================
   CARDS
   ======================================================================== */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.card--accent {
  position: relative;
  overflow: hidden;
}

.card--accent::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary-500), var(--color-secondary-400), var(--color-primary-500));
  background-size: 200% 100%;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.card--accent:hover::before {
  transform: scaleX(1);
  animation: shimmerAccent 1.5s ease infinite;
}

@keyframes shimmerAccent {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.card--accent:hover { transform: translateY(-8px); box-shadow: var(--shadow-2xl); }

.card-body { padding: var(--spacing-xl); }

.card--compact .card-body { padding: var(--spacing-lg); }

/* ---------- Service Cards ---------- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 480px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 768px) { .services-grid { grid-template-columns: repeat(3, 1fr); } }

.service-card {
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  cursor: default;
}

.service-card:hover {
  background: linear-gradient(135deg, var(--color-surface), var(--color-primary-50));
  border-color: var(--color-primary-200);
}

.service-card .card-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  display: block;
  transition: transform var(--transition-bounce);
}

.service-card:hover .card-icon {
  transform: scale(1.25) rotate(-5deg);
}

@media (min-width: 768px) { .service-card .card-icon { font-size: 3rem; } }

.service-card h3 {
  color: var(--color-primary-500);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

.service-card p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

/* ---------- Stat Cards ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

@media (min-width: 480px) { .stats-grid { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 768px) { .stats-grid { gap: var(--spacing-lg); } }

.stat-card {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary-500), var(--color-secondary-400));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.stat-card:hover::before { transform: scaleX(1); }

.stat-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-lg);
}

.stat-card h3 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary-500);
  display: inline-block;
  position: relative;
}

.stat-card h3::after {
  content: '+';
  font-size: var(--font-size-xl);
  color: var(--color-secondary-500);
  position: relative;
  top: -0.3em;
}

.stat-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-xs);
}

/* ---------- Gallery ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 480px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 768px) { .gallery-grid { grid-template-columns: repeat(4, 1fr); } }

.gallery-item {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  position: relative;
  cursor: pointer;
}

.gallery-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

.gallery-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@media (min-width: 768px) { .gallery-item img { height: 260px; } }

.gallery-item:hover img { transform: scale(1.12); }

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 74, 173, 0.6) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.gallery-item:hover::after { opacity: 1; }

.gallery-item h4 {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-lg);
  color: var(--color-text-inverse);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-align: center;
  z-index: 2;
  transform: translateY(10px);
  opacity: 0;
  transition: all var(--transition-base);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
}

.gallery-item:hover h4 {
  transform: translateY(0);
  opacity: 1;
}

/* ========================================================================
   ABOUT PAGE
   ======================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
}

@media (min-width: 768px) { .about-grid { grid-template-columns: 1fr 1fr; } }

.about-text {
  position: relative;
  padding-left: 0;
}

.about-text::before {
  display: none;
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--color-primary-500), var(--color-secondary-400));
  border-radius: var(--radius-full);
}

@media (min-width: 768px) {
  .about-text { padding-left: var(--spacing-xl); }
  .about-text::before { display: block; }
}

.about-text h3 {
  color: var(--color-primary-500);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
  margin-top: var(--spacing-xl);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.about-text h3:first-child { margin-top: 0; }

.about-text h3::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--color-secondary-400);
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.about-text p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-md);
}

/* ========================================================================
   CONTACT
   ======================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

@media (min-width: 480px) { .contact-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 768px) { .contact-grid { grid-template-columns: repeat(4, 1fr); } }

.contact-item {
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.contact-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary-400), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.contact-item:hover::before { transform: scaleX(1); }

.contact-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-200);
}

.contact-item .contact-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
  display: block;
  transition: transform var(--transition-bounce);
}

.contact-item:hover .contact-icon { transform: scale(1.2); }

.contact-item h3 {
  color: var(--color-primary-500);
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-xs);
}

.contact-item p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

/* ========================================================================
   TABLES
   ======================================================================== */
.table-wrapper {
  overflow-x: auto;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

table { width: 100%; border-collapse: collapse; }

thead {
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-700));
  color: var(--color-text-inverse);
}

th {
  padding: 0.75rem var(--spacing-md);
  text-align: left;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  white-space: nowrap;
}

td {
  padding: 0.75rem var(--spacing-md);
  font-size: var(--font-size-sm);
  border-bottom: 1px solid var(--color-border);
}

tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--color-bg-alt); }
tbody tr { transition: background var(--transition-fast); }

/* ========================================================================
   ALERTS / TOASTS
   ======================================================================== */
.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border: 1px solid transparent;
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  animation: fadeInUp 0.3s ease-out;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.alert--success { background: var(--color-success-bg); border-color: var(--color-success-border); color: #065f46; }
.alert--error { background: var(--color-error-bg); border-color: var(--color-error-border); color: #991b1b; }
.alert--warning { background: var(--color-warning-bg); border-color: var(--color-warning-border); color: #92400e; }
.alert--info { background: var(--color-info-bg); border-color: var(--color-info-border); color: #075985; }

.toast-container {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-width: 400px;
  width: calc(100% - var(--spacing-xl));
}

@media (min-width: 768px) {
  .toast-container { bottom: var(--spacing-xl); right: var(--spacing-xl); }
}

.toast {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(100%) scale(0.8); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

.toast--success { background: var(--color-success); color: var(--color-text-inverse); }
.toast--error { background: var(--color-error); color: var(--color-text-inverse); }

/* ========================================================================
   LOADING / SKELETON
   ======================================================================== */
.skeleton {
  background: linear-gradient(90deg, var(--color-bg-alt) 25%, var(--color-border) 50%, var(--color-bg-alt) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton--text { height: 1rem; width: 100%; margin-bottom: var(--spacing-sm); }
.skeleton--title { height: 1.5rem; width: 60%; margin-bottom: var(--spacing-md); }
.skeleton--card { height: 200px; width: 100%; }
.skeleton--avatar { height: 48px; width: 48px; border-radius: var(--radius-full); }

.spinner-page {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-4xl) 0;
  gap: var(--spacing-md);
  color: var(--color-text-secondary);
}

.spinner-page::before {
  content: '';
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary-500);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

/* ========================================================================
   EMPTY STATE
   ======================================================================== */
.empty-state {
  text-align: center;
  padding: var(--spacing-4xl) var(--spacing-lg);
  color: var(--color-text-secondary);
}

.empty-state__icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0.4;
}

.empty-state__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.empty-state__text { font-size: var(--font-size-sm); }

/* ========================================================================
   SCROLL REVEAL ANIMATIONS
   ======================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.reveal-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.reveal-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal-scale.is-visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.stagger-children.is-visible > *:nth-child(1) { transition-delay: 0s; }
.stagger-children.is-visible > *:nth-child(2) { transition-delay: 0.1s; }
.stagger-children.is-visible > *:nth-child(3) { transition-delay: 0.2s; }
.stagger-children.is-visible > *:nth-child(4) { transition-delay: 0.3s; }
.stagger-children.is-visible > *:nth-child(5) { transition-delay: 0.4s; }
.stagger-children.is-visible > *:nth-child(6) { transition-delay: 0.5s; }

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

/* ========================================================================
   DECORATIVE ELEMENTS
   ======================================================================== */
.section--with-shape {
  position: relative;
}

.section--with-shape::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--color-bg);
  clip-path: ellipse(50% 100% at 50% 0);
  pointer-events: none;
}

/* Floating decorative circles */
.deco-circle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.deco-circle--1 {
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(0, 74, 173, 0.05), transparent 70%);
  top: -80px;
  right: 0;
  animation: floatVertical 6s ease-in-out infinite;
}

.deco-circle--2 {
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.05), transparent 70%);
  bottom: -30px;
  left: 0;
  animation: floatVertical 8s ease-in-out infinite reverse;
}

@keyframes floatVertical {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

/* ========================================================================
   FOOTER
   ======================================================================== */
.footer {
  background: linear-gradient(180deg, var(--color-primary-800) 0%, var(--color-primary-900) 100%);
  color: rgba(255, 255, 255, 0.8);
  padding-top: var(--spacing-2xl);
  margin-top: auto;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary-500), var(--color-secondary-400), var(--color-primary-500), var(--color-accent));
  background-size: 300% 100%;
  animation: footerGlow 4s ease infinite;
}

@keyframes footerGlow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 640px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: repeat(4, 1fr); } }

.footer h3 {
  color: var(--color-secondary-400);
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  position: relative;
}

.footer h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--color-secondary-400);
  transition: width var(--transition-base);
}

.footer-grid > div:hover h3::after { width: 40px; }

.footer p { font-size: var(--font-size-sm); line-height: 1.7; color: rgba(255, 255, 255, 0.65); }

.footer .school-motto {
  font-style: italic;
  margin-top: var(--spacing-sm);
  color: var(--color-secondary-400) !important;
  font-weight: var(--font-weight-medium);
}

.footer ul li { margin-bottom: var(--spacing-xs); }

.footer a {
  color: rgba(255, 255, 255, 0.65);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  display: inline-block;
}

.footer a:hover {
  color: var(--color-secondary-400);
  transform: translateX(4px);
}

.footer-social {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-social a {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) 0;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  color: var(--color-secondary-400);
  transform: translateX(4px);
  padding-left: var(--spacing-xs);
}

.footer-social a i {
  width: 20px;
  font-size: var(--font-size-base);
  transition: transform var(--transition-fast);
}

.footer-social a:hover i { transform: scale(1.2); }

.footer-bottom {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-lg);
  text-align: center;
  background: rgba(0, 0, 0, 0.2);
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.5);
}

/* ========================================================================
   ACCESSIBILITY
   ======================================================================== */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-primary-500);
  color: var(--color-text-inverse);
  border-radius: var(--radius-md);
  z-index: var(--z-toast);
  font-weight: var(--font-weight-semibold);
}

.skip-link:focus { top: var(--spacing-md); }

:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal, .reveal-left, .reveal-right, .reveal-scale { opacity: 1; transform: none; }
  .stagger-children > * { opacity: 1; transform: none; }
  .carousel-slide img { transform: none !important; }
}

/* ========================================================================
   PRINT
   ======================================================================== */
@media print {
  .navbar, .footer, .carousel-btn, .carousel-dots, .btn { display: none !important; }
  .page-hero { margin-top: 0; padding: var(--spacing-xl) 0; }
  body { font-size: 12pt; color: #000; background: #fff; }
  .reveal, .reveal-left, .reveal-right, .reveal-scale { opacity: 1; transform: none; }
}

/* ========================================================================
   UTILITY
   ======================================================================== */
.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;
}

.text-center { text-align: center; }
.text-sm { font-size: var(--font-size-sm); }
.text-secondary { color: var(--color-text-secondary); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.gap-sm { gap: var(--spacing-sm); }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }