/* ============================================
   LET'S SKILL INDIA FOUNDATION — COMPONENTS
   ============================================ */

/* ═══════════════════════════════════════════
   NAVIGATION BAR
   ═══════════════════════════════════════════ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  z-index: var(--z-sticky);
  transition: var(--transition-base);
  background: rgba(6, 26, 45, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.navbar.scrolled {
  height: var(--nav-height-shrunk);
  background: rgba(6, 26, 45, 0.92);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--section-px);
}

/* Logo */
.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  z-index: var(--z-overlay);
}

.navbar__logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary-accent), var(--color-electric-blue));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--weight-black);
  color: var(--color-pure-white);
  font-size: var(--text-lg);
}

.navbar__logo-text {
  display: flex;
  flex-direction: column;
}

.navbar__logo-name {
  font-family: var(--font-heading);
  font-weight: var(--weight-extrabold);
  font-size: var(--text-lg);
  color: var(--color-text-white);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.navbar__logo-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: var(--weight-medium);
  color: var(--color-primary-accent);
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

/* Nav Links */
.navbar__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.navbar__link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-on-dark);
  position: relative;
  padding: var(--space-2) 0;
  letter-spacing: 0.02em;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary-accent);
  transition: width var(--duration-normal) var(--ease-out);
}

.navbar__link:hover::after,
.navbar__link.active::after {
  width: 100%;
}

.navbar__link:hover {
  color: var(--color-text-white);
}

.navbar__link.active {
  color: var(--color-primary-accent);
}

/* Nav CTA */
.navbar__cta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  cursor: pointer;
  z-index: var(--z-overlay);
}

.navbar__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-white);
  border-radius: 2px;
  transition: var(--transition-base);
  transform-origin: center;
}

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

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

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

/* Mobile Menu Overlay */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(6, 26, 45, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: var(--z-overlay);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.mobile-menu.open {
  display: flex;
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu__link {
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  color: var(--color-text-white);
  transition: var(--transition-base);
}

.mobile-menu__link:hover {
  color: var(--color-primary-accent);
  transform: translateX(8px);
}


/* ═══════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
  border: 2px solid transparent;
  letter-spacing: 0.02em;
}

.btn:hover {
  transform: scale(1.03);
}

.btn:active {
  transform: scale(0.98);
}

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

.btn--primary:hover {
  background: #00e6b8;
  box-shadow: var(--glow-accent);
}

.btn--coral {
  background: var(--color-warm-coral);
  color: var(--color-text-white);
}

.btn--coral:hover {
  background: #ff5252;
  box-shadow: var(--glow-coral);
}

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

.btn--outline:hover {
  background: var(--color-primary-accent);
  color: var(--color-primary-deep);
  box-shadow: var(--glow-accent);
}

.btn--outline-coral {
  background: transparent;
  color: var(--color-warm-coral);
  border-color: var(--color-warm-coral);
}

.btn--outline-coral:hover {
  background: var(--color-warm-coral);
  color: var(--color-text-white);
  box-shadow: var(--glow-coral);
}

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

.btn--outline-white:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.8);
}

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

.btn--white:hover {
  background: #f0f0f5;
  box-shadow: 0 8px 30px rgba(255, 255, 255, 0.2);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn__icon {
  width: 18px;
  height: 18px;
  transition: transform var(--duration-normal) var(--ease-out);
}

.btn:hover .btn__icon {
  transform: translateX(3px);
}


/* ═══════════════════════════════════════════
   CARDS
   ═══════════════════════════════════════════ */

.card {
  background: var(--color-pure-white);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border-light);
}

.card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

/* Tilt-ready card */
.card--tilt {
  transform-style: preserve-3d;
  perspective: 1000px;
  will-change: transform;
}

.card--tilt:hover {
  transform: none; /* JS handles the tilt */
}

/* Card with accent border glow */
.card--glow::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-xl);
  padding: 2px;
  background: linear-gradient(
    135deg,
    transparent 40%,
    var(--color-primary-accent) 50%,
    transparent 60%
  );
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.card--glow:hover::before {
  opacity: 1;
}

/* Card color themes */
.card--blue { --card-accent: var(--color-electric-blue); }
.card--accent { --card-accent: var(--color-primary-accent); }
.card--coral { --card-accent: var(--color-warm-coral); }

.card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, var(--card-accent, var(--color-primary-accent)), transparent);
  opacity: 0.9;
}

.card__icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-pure-white);
}

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

.card__text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
}

.card__reveal {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-4) var(--space-8);
  background: var(--card-accent, var(--color-primary-accent));
  color: var(--color-text-white);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  transform: translateY(100%);
  transition: transform var(--duration-normal) var(--ease-out);
}

.card:hover .card__reveal {
  transform: translateY(0);
}

/* Dark card */
.card--dark {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.08);
  color: var(--color-text-on-dark);
}

.card--dark .card__title {
  color: var(--color-text-white);
}

.card--dark .card__text {
  color: var(--color-text-on-dark);
}

.card--dark:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
}


/* ═══════════════════════════════════════════
   STAT CARD
   ═══════════════════════════════════════════ */

.stat-card {
  text-align: center;
  padding: var(--space-8);
}

.stat-card__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-4);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary-accent), var(--color-electric-blue));
}

.stat-card__icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-pure-white);
}

.stat-card__number {
  font-family: var(--font-heading);
  font-size: var(--text-5xl);
  font-weight: var(--weight-black);
  color: var(--color-primary-deep);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-card__label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  max-width: 200px;
  margin: 0 auto;
}


/* ═══════════════════════════════════════════
   TESTIMONIAL CARD
   ═══════════════════════════════════════════ */

.testimonial-card {
  background: var(--color-pure-white);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
  transition: var(--transition-base);
  position: relative;
  border: 1px solid var(--color-border-light);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.testimonial-card__quote-icon {
  font-size: var(--text-6xl);
  line-height: 1;
  color: var(--color-primary-accent);
  opacity: 0.2;
  font-family: Georgia, serif;
  position: absolute;
  top: var(--space-4);
  left: var(--space-6);
}

.testimonial-card__text {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
  font-style: italic;
  position: relative;
  z-index: 1;
}

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

.testimonial-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  background: linear-gradient(135deg, var(--color-primary-accent), var(--color-electric-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--weight-bold);
  color: var(--color-pure-white);
  font-size: var(--text-lg);
  flex-shrink: 0;
}

.testimonial-card__info {
  display: flex;
  flex-direction: column;
}

.testimonial-card__name {
  font-weight: var(--weight-semibold);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
}

.testimonial-card__role {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.testimonial-card__stars {
  display: flex;
  gap: 2px;
  margin-top: var(--space-2);
}

.testimonial-card__stars svg {
  width: 16px;
  height: 16px;
  fill: #FFC107;
  stroke: none;
}


/* ═══════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════ */

.footer {
  background: var(--color-deep-navy);
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
  color: var(--color-text-on-dark);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer__col-title {
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--color-text-white);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-6);
}

.footer__brand-desc {
  font-size: var(--text-sm);
  color: var(--color-text-on-dark);
  margin-bottom: var(--space-6);
  max-width: 300px;
  line-height: var(--leading-relaxed);
}

.footer__socials {
  display: flex;
  gap: var(--space-3);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-base);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__social-link svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-text-on-dark);
}

.footer__social-link:hover {
  background: var(--color-primary-accent);
  border-color: var(--color-primary-accent);
  transform: translateY(-2px);
}

.footer__social-link:hover svg {
  stroke: var(--color-primary-deep);
}

.footer__link {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-on-dark);
  padding: var(--space-1) 0;
  transition: var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-primary-accent);
  transform: translateX(4px);
}

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
}

.footer__contact-item svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-primary-accent);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.footer__bottom-links {
  display: flex;
  gap: var(--space-6);
}

.footer__bottom-links a {
  color: var(--color-text-muted);
  transition: var(--transition-fast);
}

.footer__bottom-links a:hover {
  color: var(--color-primary-accent);
}


/* ═══════════════════════════════════════════
   BACK TO TOP BUTTON
   ═══════════════════════════════════════════ */

.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary-accent);
  color: var(--color-primary-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: var(--transition-base);
  z-index: var(--z-dropdown);
  box-shadow: var(--shadow-lg);
  border: none;
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: var(--glow-accent);
}


/* ═══════════════════════════════════════════
   BREADCRUMB
   ═══════════════════════════════════════════ */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-family: var(--font-mono);
  color: var(--color-text-on-dark);
  opacity: 0.7;
  margin-bottom: var(--space-4);
}

.breadcrumb__separator {
  margin: 0 var(--space-1);
}

.breadcrumb a:hover {
  color: var(--color-primary-accent);
}


/* ═══════════════════════════════════════════
   FORM
   ═══════════════════════════════════════════ */

.form-group {
  position: relative;
  margin-bottom: var(--space-6);
}

.form-group__input,
.form-group__textarea,
.form-group__select {
  width: 100%;
  padding: var(--space-4) var(--space-4);
  padding-top: var(--space-6);
  background: var(--color-pure-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-base);
  transition: var(--transition-base);
  color: var(--color-text-primary);
}

.form-group__textarea {
  min-height: 140px;
  resize: vertical;
}

.form-group__select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23718096' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  background-size: 18px;
}

.form-group__label {
  position: absolute;
  top: 50%;
  left: var(--space-4);
  transform: translateY(-50%);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  pointer-events: none;
  transition: var(--transition-base);
  background: transparent;
}

.form-group__textarea ~ .form-group__label {
  top: var(--space-6);
  transform: none;
}

.form-group__input:focus,
.form-group__textarea:focus,
.form-group__select:focus {
  border-color: var(--color-primary-accent);
  box-shadow: 0 0 0 4px rgba(0, 212, 170, 0.1);
}

.form-group__input:focus ~ .form-group__label,
.form-group__input:not(:placeholder-shown) ~ .form-group__label,
.form-group__textarea:focus ~ .form-group__label,
.form-group__textarea:not(:placeholder-shown) ~ .form-group__label,
.form-group__select:focus ~ .form-group__label,
.form-group__select:not(:placeholder-shown) ~ .form-group__label {
  top: var(--space-2);
  transform: none;
  font-size: var(--text-xs);
  color: var(--color-primary-accent);
  font-weight: var(--weight-medium);
}

.form-group__error {
  display: none;
  font-size: var(--text-xs);
  color: var(--color-warm-coral);
  margin-top: var(--space-1);
  padding-left: var(--space-4);
}

.form-group.error .form-group__input,
.form-group.error .form-group__textarea {
  border-color: var(--color-warm-coral);
}

.form-group.error .form-group__error {
  display: block;
}

/* Form success state */
.form-success {
  display: none;
  text-align: center;
  padding: var(--space-12);
}

.form-success.show {
  display: block;
  animation: fadeInUp 0.6s var(--ease-out);
}

.form-success__checkmark {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary-accent), #00e6b8);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  animation: scaleIn 0.5s var(--ease-spring);
}

.form-success__checkmark svg {
  width: 40px;
  height: 40px;
  stroke: var(--color-pure-white);
  stroke-width: 3;
}


/* ═══════════════════════════════════════════
   ACCORDION
   ═══════════════════════════════════════════ */

.accordion-item {
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.accordion-item__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-5) 0;
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  text-align: left;
  cursor: pointer;
  transition: var(--transition-fast);
  background: none;
  border: none;
  font-family: inherit;
}

.accordion-item__header:hover {
  color: var(--color-primary-accent);
}

.accordion-item__icon {
  width: 20px;
  height: 20px;
  transition: transform var(--duration-normal) var(--ease-out);
  flex-shrink: 0;
  stroke: currentColor;
}

.accordion-item.open .accordion-item__icon {
  transform: rotate(180deg);
}

.accordion-item__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-out),
              padding var(--duration-normal) var(--ease-out);
}

.accordion-item.open .accordion-item__content {
  max-height: 500px;
  padding-bottom: var(--space-5);
}

.accordion-item__content p {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}


/* ═══════════════════════════════════════════
   PARTNER LOGOS
   ═══════════════════════════════════════════ */

.partner-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  align-items: center;
  justify-items: center;
}

.partner-logo {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--color-pure-white);
  border: 1px solid var(--color-border-light);
  transition: var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 80px;
  filter: grayscale(100%);
  opacity: 0.6;
}

.partner-logo:hover {
  filter: grayscale(0%);
  opacity: 1;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}


/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */

@media (max-width: 1024px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

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

@media (max-width: 768px) {
  .navbar__links {
    display: none;
  }

  .navbar__cta .btn {
    display: none;
  }

  .navbar__hamburger {
    display: flex;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }

  .partner-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }

  .section {
    padding: var(--space-12) 0;
  }

  .back-to-top {
    right: var(--space-4);
    bottom: var(--space-4);
    width: 42px;
    height: 42px;
  }
}

@media (max-width: 480px) {
  :root {
    --section-px: var(--space-4);
  }
}