/* ─── BUTTONS ─────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.875rem 1.75rem;
  font-size: var(--size-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  transition: all var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
  line-height: 1;
}

.btn-primary {
  background: var(--e2l-light);
  color: var(--e2l-white);
  border-color: var(--e2l-light);
}

.btn-primary:hover {
  background: var(--e2l-medium);
  border-color: var(--e2l-medium);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--e2l-white);
  border-color: rgba(255,255,255,0.4);
}

.btn-outline:hover {
  border-color: var(--e2l-white);
  background: rgba(255,255,255,0.08);
}

.btn-outline-dark {
  background: transparent;
  color: var(--e2l-dark);
  border-color: var(--e2l-dark);
}

.btn-outline-dark:hover {
  background: var(--e2l-dark);
  color: var(--e2l-white);
}

.btn-ghost {
  background: transparent;
  color: var(--e2l-light);
  padding-left: 0;
  padding-right: 0;
  border: none;
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: text-decoration-color var(--transition);
}

.btn-ghost:hover {
  text-decoration-color: var(--e2l-light);
}

/* ─── NAVBAR ──────────────────────────────────────────────── */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 72px;
  display: flex;
  align-items: center;
  transition: background var(--transition-slow), box-shadow var(--transition-slow);
}

.navbar.transparent {
  background: transparent;
}

.navbar.scrolled {
  background: var(--e2l-dark);
  box-shadow: 0 1px 0 rgba(255,255,255,0.08);
}

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

.nav-logo {
  font-size: var(--size-xl);
  font-weight: 800;
  color: var(--e2l-white);
  letter-spacing: -0.04em;
}

.nav-logo span {
  color: var(--e2l-light);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links a {
  color: rgba(255,255,255,0.75);
  font-size: var(--size-sm);
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--e2l-white);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-portal-btn {
  font-size: var(--size-sm);
  font-weight: 500;
  color: rgba(255,255,255,0.6);
  padding: 0.5rem 1rem;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.nav-portal-btn:hover {
  color: var(--e2l-white);
  border-color: rgba(255,255,255,0.5);
}

.nav-cta {
  font-size: var(--size-sm);
  font-weight: 600;
  color: var(--e2l-white);
  background: var(--e2l-light);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.nav-cta:hover {
  background: var(--e2l-medium);
  transform: translateY(-1px);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--e2l-white);
  transition: all var(--transition);
}

.nav-hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav */
.nav-mobile {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--e2l-dark);
  padding: var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.08);
  flex-direction: column;
  gap: var(--space-4);
  z-index: 99;
}

.nav-mobile.open {
  display: flex;
}

.nav-mobile a {
  color: rgba(255,255,255,0.8);
  font-size: var(--size-base);
  font-weight: 500;
  padding: var(--space-2) 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav-mobile a:last-child {
  border-bottom: none;
}

@media (max-width: 1024px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
}

@media (max-width: 640px) {
  .nav-actions .nav-portal-btn { display: none; }
}

/* ─── CARDS ───────────────────────────────────────────────── */

.card {
  background: var(--e2l-white);
  border: 1px solid rgba(10, 22, 40, 0.08);
  border-radius: var(--radius);
  padding: var(--space-8);
  transition: box-shadow var(--transition), transform var(--transition);
}

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

.card-dark {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: var(--space-8);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: rgba(59, 142, 212, 0.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
  color: var(--e2l-light);
}

.card-icon svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card h4 {
  font-size: var(--size-lg);
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: var(--e2l-dark);
}

.card p {
  font-size: var(--size-sm);
  color: #555;
  line-height: 1.7;
}

.card-dark h4 {
  color: var(--e2l-white);
}

.card-dark p {
  color: rgba(255,255,255,0.65);
}

/* Program cards */
.program-card {
  background: var(--e2l-white);
  border: 1px solid rgba(10,22,40,0.1);
  border-radius: var(--radius);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: all var(--transition);
}

.program-card:hover {
  border-color: var(--e2l-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.program-card .tag {
  display: inline-block;
  font-size: var(--size-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--e2l-light);
  background: rgba(59,142,212,0.08);
  padding: 0.25rem 0.625rem;
  border-radius: 2px;
  width: fit-content;
}

.program-card h3 {
  font-size: var(--size-2xl);
  color: var(--e2l-dark);
}

.program-card p {
  font-size: var(--size-sm);
  color: #555;
  flex: 1;
}

.program-card .btn-ghost {
  color: var(--e2l-medium);
  font-weight: 600;
  font-size: var(--size-sm);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ─── OPERATE TABLE ───────────────────────────────────────── */

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

.operate-row {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--space-8);
  padding: var(--space-8) 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  align-items: start;
}

.operate-row:last-child {
  border-bottom: none;
}

.operate-number {
  font-size: var(--size-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--e2l-light);
  padding-top: 4px;
}

.operate-content h4 {
  font-size: var(--size-lg);
  font-weight: 700;
  color: var(--e2l-white);
  margin-bottom: var(--space-2);
}

.operate-content p {
  font-size: var(--size-sm);
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
}

/* ─── STATS ───────────────────────────────────────────────── */

.stats-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(10,22,40,0.08);
}

.stat-item {
  background: var(--e2l-surface);
  padding: var(--space-12) var(--space-8);
  text-align: center;
}

.stat-number {
  font-size: clamp(var(--size-3xl), 4vw, var(--size-5xl));
  font-weight: 800;
  color: var(--e2l-dark);
  letter-spacing: -0.03em;
  line-height: 1;
  display: block;
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: var(--size-sm);
  color: #666;
  font-weight: 500;
}

@media (max-width: 640px) {
  .stats-bar { grid-template-columns: 1fr; }
}

/* ─── FOOTER ──────────────────────────────────────────────── */

.footer {
  background: var(--e2l-dark);
  color: rgba(255,255,255,0.6);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: var(--space-8);
}

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-8); }
}

.footer-logo {
  font-size: var(--size-2xl);
  font-weight: 800;
  color: var(--e2l-white);
  letter-spacing: -0.04em;
  margin-bottom: var(--space-4);
}

.footer-logo span { color: var(--e2l-light); }

.footer-desc {
  font-size: var(--size-sm);
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h5 {
  font-size: var(--size-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--e2l-white);
  margin-bottom: var(--space-4);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col a {
  font-size: var(--size-sm);
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}

.footer-col a:hover { color: var(--e2l-white); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-bottom p {
  font-size: var(--size-xs);
  color: rgba(255,255,255,0.35);
}

/* ─── FORMS ───────────────────────────────────────────────── */

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

.form-group label {
  font-size: var(--size-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #555;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1.5px solid rgba(10,22,40,0.15);
  border-radius: var(--radius);
  font-size: var(--size-base);
  color: var(--e2l-black);
  background: var(--e2l-white);
  transition: border-color var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--e2l-light);
}

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

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

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

/* ─── HERO ────────────────────────────────────────────────── */

.hero {
  min-height: 100vh;
  background: var(--e2l-dark);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero-bg-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image:
    linear-gradient(rgba(59,142,212,0.4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,142,212,0.4) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero h1 {
  color: var(--e2l-white);
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: var(--space-6);
}

.hero h1 em {
  font-style: normal;
  color: var(--e2l-light);
}

.hero-sub {
  font-size: clamp(var(--size-base), 2vw, var(--size-lg));
  color: rgba(255,255,255,0.7);
  max-width: 560px;
  margin-bottom: var(--space-10);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ─── SECTION HEADINGS ────────────────────────────────────── */

.s-label {
  font-size: var(--size-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--e2l-light);
  display: block;
  margin-bottom: var(--space-4);
}

/* ─── CTA BAND ────────────────────────────────────────────── */

.cta-band {
  background: var(--e2l-dark);
  padding: var(--space-24) 0;
  text-align: center;
}

.cta-band h2 {
  color: var(--e2l-white);
  margin-bottom: var(--space-4);
}

.cta-band p {
  color: rgba(255,255,255,0.65);
  font-size: var(--size-lg);
  margin-bottom: var(--space-10);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.cta-band-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ─── TESTIMONIALS ────────────────────────────────────────── */

.testimonial-card {
  background: var(--e2l-white);
  border: 1px solid rgba(10,22,40,0.08);
  border-radius: var(--radius);
  padding: var(--space-8);
}

.testimonial-card blockquote {
  font-size: var(--size-base);
  line-height: 1.75;
  color: #333;
  font-style: italic;
  margin-bottom: var(--space-6);
}

.testimonial-author {
  font-size: var(--size-sm);
  font-weight: 600;
  color: var(--e2l-dark);
}

.testimonial-role {
  font-size: var(--size-xs);
  color: #888;
  margin-top: 2px;
}

/* ─── BADGE / TAG ─────────────────────────────────────────── */

.badge {
  display: inline-block;
  font-size: var(--size-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border-radius: 2px;
  background: rgba(59,142,212,0.1);
  color: var(--e2l-medium);
}

/* ─── ABOUT BLOCK ─────────────────────────────────────────── */

.about-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

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

.about-photo {
  aspect-ratio: 3/4;
  background: var(--e2l-surface);
  border-radius: var(--radius);
  overflow: hidden;
}

.about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-bullets {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.about-bullet {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  font-size: var(--size-sm);
  color: #444;
}

.about-bullet::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--e2l-light);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 7px;
}

/* ─── PAGE HERO (inner pages) ─────────────────────────────── */

.page-hero {
  background: var(--e2l-dark);
  padding: 140px 0 80px;
  color: var(--e2l-white);
}

.page-hero h1 {
  color: var(--e2l-white);
  margin-bottom: var(--space-4);
}

.page-hero p {
  color: rgba(255,255,255,0.7);
  font-size: var(--size-lg);
  max-width: 560px;
}

/* ─── PORTAL ──────────────────────────────────────────────── */

.portal-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

.portal-sidebar {
  background: var(--e2l-dark);
  padding: var(--space-8) 0;
  display: flex;
  flex-direction: column;
}

.portal-nav-logo {
  font-size: var(--size-xl);
  font-weight: 800;
  color: var(--e2l-white);
  letter-spacing: -0.04em;
  padding: 0 var(--space-6) var(--space-8);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: var(--space-6);
}

.portal-nav-logo span { color: var(--e2l-light); }

.portal-nav a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  color: rgba(255,255,255,0.6);
  font-size: var(--size-sm);
  font-weight: 500;
  transition: all var(--transition);
  border-left: 2px solid transparent;
}

.portal-nav a:hover,
.portal-nav a.active {
  color: var(--e2l-white);
  background: rgba(255,255,255,0.05);
  border-left-color: var(--e2l-light);
}

.portal-main {
  background: var(--e2l-surface);
  padding: var(--space-8);
}

.portal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
}

.portal-greeting h2 {
  font-size: var(--size-2xl);
  color: var(--e2l-dark);
}

.portal-greeting p {
  color: #888;
  font-size: var(--size-sm);
}

.portal-card {
  background: var(--e2l-white);
  border-radius: var(--radius);
  padding: var(--space-6);
  border: 1px solid rgba(10,22,40,0.06);
}

.portal-card h3 {
  font-size: var(--size-lg);
  color: var(--e2l-dark);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid rgba(10,22,40,0.06);
}

.lesson-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid rgba(10,22,40,0.05);
  align-items: center;
}

.lesson-item:last-child { border-bottom: none; }

.lesson-date {
  text-align: center;
  min-width: 48px;
}

.lesson-date .day {
  font-size: var(--size-2xl);
  font-weight: 800;
  color: var(--e2l-dark);
  line-height: 1;
}

.lesson-date .month {
  font-size: var(--size-xs);
  color: #888;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.lesson-info h4 {
  font-size: var(--size-base);
  font-weight: 600;
  color: var(--e2l-dark);
}

.lesson-info p {
  font-size: var(--size-sm);
  color: #888;
}

.lesson-status {
  margin-left: auto;
  font-size: var(--size-xs);
  font-weight: 600;
  padding: 0.25rem 0.625rem;
  border-radius: 2px;
}

.status-scheduled {
  background: rgba(59,142,212,0.1);
  color: var(--e2l-medium);
}

.status-completed {
  background: rgba(34,197,94,0.1);
  color: #16a34a;
}

/* ─── LOGIN PAGE ──────────────────────────────────────────── */

.login-page {
  min-height: 100vh;
  background: var(--e2l-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
}

.login-box {
  background: var(--e2l-white);
  border-radius: var(--radius);
  padding: var(--space-12);
  width: 100%;
  max-width: 420px;
}

.login-box h2 {
  font-size: var(--size-2xl);
  color: var(--e2l-dark);
  margin-bottom: var(--space-2);
}

.login-box .login-sub {
  font-size: var(--size-sm);
  color: #777;
  margin-bottom: var(--space-8);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.login-error {
  display: none;
  padding: var(--space-3) var(--space-4);
  background: rgba(220,38,38,0.08);
  border: 1px solid rgba(220,38,38,0.2);
  border-radius: var(--radius-sm);
  color: #dc2626;
  font-size: var(--size-sm);
}

/* ─── MOBILE PORTAL ───────────────────────────────────────── */

@media (max-width: 768px) {
  .portal-layout {
    grid-template-columns: 1fr;
  }

  .portal-sidebar {
    display: none;
  }
}

/* ─── GALLERY ─────────────────────────────────────────────── */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 4 / 3;
  background: var(--e2l-dark);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition);
}

.gallery-item:hover img {
  transform: scale(1.04);
}

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