/**
 * NextGenTutors - Section Styles
 * Styles for homepage section templates (hero, trust, services, how-it-works, mission, impact, final-cta)
 * Version: 1.9.3-redesign
 */

/* ============================================================
   HERO SECTION
   ============================================================ */

.ngt-hero { position: relative; overflow: hidden; background: linear-gradient(135deg, var(--ngt-primary), #0a1628); }
.ngt-hero-bg { position: absolute; inset: 0; opacity: 0.08; background: radial-gradient(circle at 20% 80%, var(--ngt-secondary), transparent 50%), radial-gradient(circle at 80% 20%, var(--ngt-accent), transparent 50%); pointer-events: none; }
.ngt-hero-track { display: flex; transition: transform 0.6s var(--ngt-ease-out); }
.ngt-hero-slide { flex: 0 0 100%; padding: 80px 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; max-width: 1280px; margin: 0 auto; min-height: 500px; }
.ngt-hero-slide.is-active { display: grid; }
.ngt-hero-slide:not(.is-active) { display: none; }
.ngt-hero-content { color: #fff; }
.ngt-hero-badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border-radius: var(--ngt-radius-full); font-size: 0.8125rem; font-weight: 600; margin-bottom: 20px; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); }
.ngt-hero-badge .star { color: #FFB800; }
.ngt-tone-emerald .ngt-hero-badge { background: rgba(5,150,105,0.2); border-color: rgba(5,150,105,0.3); color: #6EE7B7; }
.ngt-tone-indigo .ngt-hero-badge { background: rgba(99,102,241,0.2); border-color: rgba(99,102,241,0.3); color: #A5B4FC; }
.ngt-tone-rose .ngt-hero-badge { background: rgba(244,63,94,0.2); border-color: rgba(244,63,94,0.3); color: #FDA4AF; }
.ngt-hero-title { font-size: clamp(2rem, 4.5vw, 3.5rem); font-weight: 800; line-height: 1.1; margin-bottom: 16px; color: #fff; }
.ngt-hero-accent { display: block; background: linear-gradient(135deg, var(--ngt-secondary), var(--ngt-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.ngt-hero-desc { font-size: 1.1rem; line-height: 1.7; color: rgba(255,255,255,0.8); margin-bottom: 28px; max-width: 520px; }
.ngt-hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.ngt-btn-accent { background: var(--ngt-secondary); color: #fff; }
.ngt-btn-accent:hover { background: var(--ngt-secondary-dark); }
.ngt-btn-ghost { background: rgba(255,255,255,0.08); color: #fff; border: 1px solid rgba(255,255,255,0.2); padding: 12px 24px; border-radius: var(--ngt-radius-md); font-weight: 600; display: inline-flex; align-items: center; justify-content: center; transition: all 0.3s ease; }
.ngt-btn-ghost:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.4); }
.ngt-hero-visual { position: relative; }
.ngt-hero-card { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--ngt-radius-lg); padding: 24px; backdrop-filter: blur(10px); }
.ngt-hero-card-head { display: flex; justify-content: space-between; margin-bottom: 16px; font-size: 0.75rem; opacity: 0.7; color: rgba(255,255,255,0.7); }
.ngt-hero-board { background: rgba(0,0,0,0.2); border-radius: var(--ngt-radius-md); padding: 20px; font-family: "SF Mono", "Fira Code", monospace; font-size: 0.875rem; min-height: 120px; display: flex; flex-direction: column; justify-content: center; color: rgba(255,255,255,0.9); }
.ngt-hero-code { color: rgba(255,255,255,0.5); font-size: 0.75rem; margin-bottom: 8px; }
.ngt-hero-formula { font-size: 1.1rem; color: #fff; }
.ngt-hero-ring { width: 48px; height: 48px; border: 3px solid var(--ngt-secondary); border-radius: 50%; border-top-color: transparent; animation: spin 1.2s linear infinite; margin-top: 12px; }
.ngt-hero-tutorbar { display: flex; align-items: center; gap: 12px; margin-top: 16px; font-size: 0.8125rem; }
.ngt-hero-dot { width: 8px; height: 8px; background: var(--ngt-secondary); border-radius: 50%; animation: pulse 1.5s ease-in-out infinite; }
.ngt-hero-tutorname { display: block; font-weight: 600; color: #fff; }
.ngt-hero-tutorrole { display: block; color: rgba(255,255,255,0.6); font-size: 0.75rem; }
.ngt-hero-badge-float { position: absolute; bottom: -12px; right: -12px; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); border-radius: var(--ngt-radius-md); padding: 8px 14px; font-size: 0.75rem; color: rgba(255,255,255,0.9); backdrop-filter: blur(10px); }
.ngt-hero-nav { position: absolute; top: 50%; transform: translateY(-50%); width: 48px; height: 48px; border-radius: 50%; border: none; background: rgba(255,255,255,0.1); color: #fff; font-size: 1.5rem; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.3s ease; z-index: 10; }
.ngt-hero-nav:hover { background: rgba(255,255,255,0.2); }
.ngt-hero-prev { left: 24px; }
.ngt-hero-next { right: 24px; }
.ngt-hero-dots { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; z-index: 10; }
.ngt-hero-dotbtn { width: 10px; height: 10px; border-radius: 50%; border: none; background: rgba(255,255,255,0.3); cursor: pointer; transition: all 0.3s ease; padding: 0; }
.ngt-hero-dotbtn.is-active { background: #fff; width: 28px; border-radius: 5px; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

/* ============================================================
   TRUST STRIP
   ============================================================ */

.ngt-trust { background: var(--ngt-white); border-bottom: 1px solid var(--ngt-border-light); padding: 28px 0; }
.ngt-trust-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.ngt-trust-item { display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; }
.ngt-trust-label { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ngt-text-3); }
.ngt-trust-value { font-size: 0.9375rem; font-weight: 700; color: var(--ngt-text); }
.ngt-trust-value.is-accent { color: var(--ngt-secondary); }

/* ============================================================
   SERVICES SECTION
   ============================================================ */

.ngt-services { padding: 80px 24px; background: var(--ngt-bg); }
.ngt-services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; max-width: 1280px; margin: 0 auto; }
.ngt-service-card { background: var(--ngt-white); border: 1px solid var(--ngt-border-light); border-radius: var(--ngt-radius-lg); padding: 32px; transition: all 0.4s var(--ngt-ease); }
.ngt-service-card:hover { transform: translateY(-8px); box-shadow: var(--ngt-shadow-lg); border-color: var(--ngt-primary); }
.ngt-service-icon { width: 52px; height: 52px; background: linear-gradient(135deg, var(--ngt-primary), var(--ngt-secondary)); border-radius: var(--ngt-radius-md); display: flex; align-items: center; justify-content: center; color: #fff; margin-bottom: 20px; }
.ngt-service-icon svg { width: 24px; height: 24px; }
.ngt-service-title { font-size: 1.125更像是:1.25rem; font-weight: 700; font-family: var(--ngt-font-display); margin-bottom: 10px; color: var(--ngt-text); }
.ngt-service-desc { font-size: 0.9375rem; color: var(--ngt-text-2); line-height: 1.7; margin: 0; }

/* ============================================================
   HOW IT WORKS SECTION
   ============================================================ */

.ngt-how { padding: 80px 24px; background: linear-gradient(180deg, var(--ngt-white) 0%, var(--ngt-bg) 100%); }
.ngt-how-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; max-width: 1280px; margin: 0 auto; }
.ngt-how-step { position: relative; padding: 32px; background: var(--ngt-white); border: 1px solid var(--ngt-border-light); border-radius: var(--ngt-radius-lg); transition: all 0.4s var(--ngt-ease); }
.ngt-how-step:hover { transform: translateY(-6px); box-shadow: var(--ngt-shadow-lg); border-color: var(--ngt-primary); }
.ngt-how-num { font-family: var(--ngt-font-display); font-size: 2.5rem; font-weight: 800; line-height: 1; margin-bottom: 16px; background: linear-gradient(135deg, var(--ngt-primary), var(--ngt-secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; opacity: 0.9; }
.ngt-how-title { font-size: 1.125rem; font-weight: 700; font-family: var(--ngt-font-display); margin-bottom: 8px; color: var(--ngt-text); }
.ngt-how-desc { font-size: 0.9375rem; color: var(--ngt-text-2); line-height: 1.7; margin: 0; }

/* ============================================================
   MISSION / VISION / PURPOSE SECTION
   ============================================================ */

.ngt-mission { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; max-width: 1280px; margin: 0 auto; padding: 80px 24px; }
.ngt-mission-card { padding: 40px 32px; border-radius: var(--ngt-radius-lg); border: 1px solid var(--ngt-border-light); transition: all 0.4s var(--ngt-ease); }
.ngt-mission-card:hover { transform: translateY(-8px); box-shadow: var(--ngt-shadow-lg); }
.ngt-mission-label { display: inline-block; padding: 4px 12px; border-radius: var(--ngt-radius-full); font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 16px; }
.ngt-mission-title { font-size: 1.5rem; font-weight: 700; font-family: var(--ngt-font-display); margin-bottom: 12px; color: var(--ngt-text); }
.ngt-mission-desc { font-size: 1rem; line-height: 1.7; color: var(--ngt-text-2); margin: 0; }

/* Tone variations for mission cards */
.ngt-mission-indigo .ngt-mission-label { background: #EEF2FF; color: #4338CA; }
.ngt-mission-indigo .ngt-mission-title { color: #312E81; }
.ngt-mission-emerald .ngt-mission-label { background: #D1FAE5; color: #059669; }
.ngt-mission-emerald .ngt-mission-title { color: #064E3B; }
.ngt-mission-slate .ngt-mission-label { background: #F1F5F9; color: #475569; }
.ngt-mission-slate .ngt-mission-title { color: #1E293B; }

/* ============================================================
   IMPACT SECTION
   ============================================================ */

.ngt-impact { position: relative; padding: 100px 24px; background: linear-gradient(135deg, var(--ngt-primary), #081122); color: #fff; overflow: hidden; }
.ngt-impact-glow { position: absolute; inset: 0; background: radial-gradient(circle at 30% 50%, rgba(5,150,105,0.15), transparent 50%), radial-gradient(circle at 70% 50%, rgba(255,159,10,0.1), transparent 50%); pointer-events: none; }
.ngt-impact-left { max-width: 600px; position: relative; z-index: 1; }
.ngt-eyebrow { display: inline-flex; align-items: center; gap: 6px; font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 16px; }
.ngt-eyebrow-light { color: #6EE7B7; }
.ngt-impact-title { font-size: clamp(1.75rem, 3.5vw, 2.75rem); font-weight: 800; font-family: var(--ngt-font-display); line-height: 1.15; margin-bottom: 16px; color: #fff; }
.ngt-impact-desc { font-size: 1.0625rem; line-height: 1.7; color: rgba(255,255,255,0.75); margin-bottom: 28px; }
.ngt-impact-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 32px; max-width: 1280px; margin: 48px auto 0; position: relative; z-index: 1; }
.ngt-stat-num { font-family: var(--ngt-font-display); font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; line-height: 1; margin-bottom: 8px; display: block; }
.ngt-stat-label { font-size: 0.9375rem; color: rgba(255,255,255,0.7); }

/* ============================================================
   FINAL CTA SECTION
   ============================================================ */

.ngt-finalcta { padding: 80px 24px; background: linear-gradient(135deg, var(--ngt-primary), #0a1628); color: #fff; text-align: center; }
.ngt-finalcta-title { font-size: clamp(1.75rem, 3.5vw, 2.75rem); font-weight: 800; font-family: var(--ngt-font-display); line-height: 1.15; margin-bottom: 16px; color: #fff; }
.ngt-finalcta-sub { font-size: 1.0625rem; line-height: 1.7; color: rgba(255,255,255,0.75); margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }
.ngt-finalcta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.ngt-btn-ghost-dark { background: rgba(255,255,255,0.08); color: #fff; border: 1px solid rgba(255,255,255,0.2); padding: 12px 24px; border-radius: var(--ngt-radius-md); font-weight: 600; display: inline-flex; align-items: center; justify-content: center; transition: all 0.3s ease; text-decoration: none; }
.ngt-btn-ghost-dark:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.4); }

/* ============================================================
   NGT TRUST BADGES (Verification / Security)
   ============================================================ */

.ngt-trust-badges { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.ngt-trust-badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; background: var(--ngt-success-bg); border-radius: var(--ngt-radius-full); font-size: 0.8125rem; font-weight: 600; color: var(--ngt-success); }
.ngt-trust-badge--security { background: #DBEAFE; color: #1D4ED8; }
.ngt-trust-badge--verified { background: var(--ngt-primary-light); color: var(--ngt-primary); }
.ngt-trust-badge--gold { background: #FEF3C7; color: #B45309; }

/* ============================================================
   TUTOR GRID & CAROUSEL
   ============================================================ */

.ngt-tutors { padding: 80px 24px; background: var(--ngt-bg); }
.ngt-tutor-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; max-width: 1280px; margin: 0 auto; }
.ngt-tutor-grid > * { min-width: 0; }

/* Section heading utility */
.ngt-section-heading { text-align: center; max-width: 700px; margin: 0 auto 48px; }
.ngt-section-heading__eyebrow { display: inline-block; font-size: 0.8125rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ngt-secondary); margin-bottom: 12px; }
.ngt-section-heading__title { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 800; font-family: var(--ngt-font-display); line-height: 1.15; margin-bottom: 12px; color: var(--ngt-text); }
.ngt-section-heading__desc { font-size: 1rem; color: var(--ngt-text-2); line-height: 1.7; margin: 0; }

/* Reveal animation */
[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 0.5s ease, transform 0.5s ease; }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
  .ngt-hero-slide { grid-template-columns: 1fr; gap: 32px; min-height: auto; padding: 60px 24px; }
  .ngt-hero-visual { order: -1; }
  .ngt-hero-title { font-size: clamp(1.75rem, 5vw, 2.5rem); }
  .ngt-how-grid { grid-template-columns: repeat(2, 1fr); }
  .ngt-impact-stats { margin-top: 32px; }
}

@media (max-width: 768px) {
  .ngt-hero-nav { display: none; }
  .ngt-hero-dots { bottom: 16px; }
  .ngt-hero-slide { padding: 48px 16px; min-height: auto; }
  .ngt-services { padding: 60px 16px; }
  .ngt-services-grid { grid-template-columns: 1fr; }
  .ngt-how { padding: 60px 16px; }
  .ngt-how-grid { grid-template-columns: 1fr; }
  .ngt-mission { padding: 60px 16px; grid-template-columns: 1fr; }
  .ngt-impact { padding: 60px 16px; }
  .ngt-impact-stats { grid-template-columns: repeat(2, 1fr); }
  .ngt-finalcta { padding: 60px 16px; }
  .ngt-trust-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; padding: 0 16px; }
  .ngt-tutor-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .ngt-hero-actions { flex-direction: column; }
  .ngt-hero-actions a { width: 100%; justify-content: center; }
  .ngt-finalcta-actions { flex-direction: column; }
  .ngt-finalcta-actions a { width: 100%; justify-content: center; }
  .ngt-impact-stats { grid-template-columns: 1fr; }
  .ngt-trust-grid { grid-template-columns: 1fr; }
}