/* ============================================
   AQUASTEALTH - Components
   Buttons, Cards, Badges, Pills, Nav
   ============================================ */

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 1rem 2.2rem;
  border-radius: var(--radius-pill);
  transition: all var(--duration-base) var(--ease-out);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-primary {
  background: var(--cta);
  color: var(--text-dark);
  box-shadow: var(--shadow-cta);
}

.btn-primary:hover {
  background: var(--cta-hover);
  transform: translateY(-2px);
  box-shadow: 0 0 40px var(--cta-glow), 0 8px 25px rgba(0, 0, 0, 0.3);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}

.btn-outline:hover {
  background: var(--accent-subtle);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-outline:active {
  transform: translateY(0);
}

.btn-ghost {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.btn-ghost:hover {
  background: var(--glass-hover);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-sm {
  padding: 0.65rem 1.4rem;
  font-size: var(--text-xs);
}

/* ---- Glass Card ---- */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: var(--space-lg);
  transition: all var(--duration-base) var(--ease-out);
}

.glass-card:hover {
  background: var(--glass-hover);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

/* ---- Stat Card ---- */
.stat-card {
  text-align: center;
  padding: clamp(1rem, 2.5vh, 2.5rem) var(--space-sm);
}

.stat-card__number {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  color: var(--accent);
  line-height: 1;
  margin-bottom: clamp(0.5rem, 1vh, 1rem);
}

.stat-card__label {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.4;
}

/* ---- Benefit Card ---- */
.benefit-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: clamp(1.25rem, 3vh, 3rem);
  transition: all var(--duration-base) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.benefit-card__icon {
  width: clamp(36px, 6vh, 52px);
  height: clamp(36px, 6vh, 52px);
  margin-bottom: clamp(0.75rem, 1.5vh, 1.5rem);
  color: var(--accent);
}

.benefit-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--text-primary);
  margin-bottom: clamp(0.5rem, 1vh, 1rem);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.benefit-card__text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

.benefit-card:hover {
  background: var(--glass-hover);
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

/* ---- Problem Card (Section 4) ---- */
.problem-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-left: 4px solid var(--red-400);
  border-radius: var(--border-radius);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: clamp(1.5rem, 3.5vh, 3.5rem) clamp(1.5rem, 3vh, 3rem) clamp(1.5rem, 3.5vh, 3.5rem) clamp(2rem, 4vh, 4rem);
  position: relative;
  overflow: hidden;
}

.problem-card__watermark {
  position: absolute;
  top: -0.2em;
  right: 0.2em;
  font-family: var(--font-heading);
  font-size: clamp(6rem, 12vw, 10rem);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.04);
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.problem-card__text {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

/* ---- Pillar Card (Section 5) ---- */
.pillar-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-top: 3px solid var(--accent);
  border-radius: var(--border-radius);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: clamp(2rem, 4vh, 4rem) clamp(1.5rem, 3vh, 3rem);
  text-align: center;
  transition: all var(--duration-base) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.pillar-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
  box-shadow: none;
  transition: box-shadow var(--duration-base) var(--ease-out);
  z-index: 2;
}

.pillar-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.pillar-card:hover::after {
  box-shadow: 0 0 20px var(--accent-glow), 0 0 40px var(--accent-glow);
}

.pillar-card__icon {
  width: clamp(48px, 8vh, 64px);
  height: clamp(48px, 8vh, 64px);
  margin: 0 auto clamp(1rem, 2vh, 2rem);
  color: var(--accent);
}

.pillar-card__text {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.7;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* ---- Indication Card (Section 7) ---- */
.indication-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: clamp(0.85rem, 1.8vh, 1.75rem) clamp(1rem, 2vh, 2rem);
  transition: all var(--duration-base) var(--ease-out);
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.5vh, 1.25rem);
}

.indication-card__badge {
  flex-shrink: 0;
  width: clamp(36px, 5vh, 44px);
  height: clamp(36px, 5vh, 44px);
  border-radius: 50%;
  background: var(--accent-subtle);
  border: 1px solid rgba(34, 209, 238, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: var(--text-xs);
  color: var(--accent);
  font-weight: 700;
}

.indication-card__text {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.6;
}

.indication-card:hover {
  background: var(--glass-hover);
  border-color: rgba(34, 209, 238, 0.2);
  transform: scale(1.02);
}

.indication-card:hover .indication-card__badge {
  background: var(--accent);
  color: var(--bg-deepest);
}

/* ---- Pill / Tag ---- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--duration-base) var(--ease-out);
  cursor: default;
}

.pill:hover {
  background: var(--accent-subtle);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ---- Section Badge ---- */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: var(--text-xs);
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: clamp(0.75rem, 2vh, 2rem);
}

.section-badge__line {
  width: 40px;
  height: 1px;
  background: var(--accent);
}

/* ---- Image Card (Section 11) ---- */
.image-card {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  aspect-ratio: 514 / 563;
  cursor: default;
  transition: transform var(--duration-base) var(--ease-out);
}

.image-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.image-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 22, 40, 0.9) 0%, transparent 60%);
  display: flex;
  align-items: flex-end;
  padding: var(--space-lg);
  transition: all var(--duration-base) var(--ease-out);
}

.image-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.image-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-base) var(--ease-out);
  z-index: 2;
}

.image-card:hover {
  transform: translateY(-4px);
}

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

.image-card:hover .image-card__img {
  transform: scale(1.08);
}

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: var(--z-nav);
  transform: translateY(-100%);
  opacity: 0;
  transition: all var(--duration-base) var(--ease-out);
}

.nav.is-visible {
  transform: translateY(0);
  opacity: 1;
  background: rgba(10, 22, 40, 0.85);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--section-pad-x);
}

.nav__logo {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--text-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  font-size: var(--text-sm);
  color: var(--text-muted);
  transition: color var(--duration-fast) ease;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--duration-base) var(--ease-out);
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--text-primary);
}

.nav__link:hover::after,
.nav__link.is-active::after {
  width: 100%;
}

.nav__right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav__phone {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  transition: color var(--duration-fast) ease;
}

.nav__phone:hover {
  color: var(--accent);
}

/* Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--cyan-300));
  z-index: calc(var(--z-nav) + 1);
  transition: none;
}

/* ---- Hamburger Menu ---- */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--duration-fast) ease;
  border-radius: 2px;
}

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

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

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

/* Mobile Menu Overlay */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 22, 40, 0.97);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  z-index: calc(var(--z-nav) - 1);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
}

.mobile-menu.is-open {
  display: flex;
  opacity: 1;
}

.mobile-menu__link {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--duration-fast) ease;
}

.mobile-menu__link:hover {
  color: var(--accent);
}

/* ---- Timeline (Section 8) ---- */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline__line {
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(255, 255, 255, 0.1);
}

.timeline__progress {
  position: absolute;
  left: 12px;
  top: 0;
  width: 2px;
  height: 0%;
  background: linear-gradient(to bottom, var(--accent), var(--cyan-300));
  transition: height 0.8s var(--ease-out);
}

.timeline__step {
  position: relative;
  padding-bottom: clamp(1.5rem, 3.5vh, 3.5rem);
}

.timeline__step:last-child {
  padding-bottom: 0;
}

.timeline__dot {
  position: absolute;
  left: -39px;
  top: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-deep);
  border: 2px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 10px;
  color: var(--text-muted);
  transition: all var(--duration-base) var(--ease-out);
  z-index: 2;
}

.timeline__step.is-active .timeline__dot {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 15px var(--accent-glow);
}

.timeline__text {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---- Spec Bar (Section 10) ---- */
.spec-bar {
  margin-bottom: clamp(0.5rem, 1.2vh, 1rem);
}

.spec-bar__label {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.spec-bar__value {
  color: var(--accent);
  font-weight: 700;
}

.spec-bar__track {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  overflow: hidden;
}

.spec-bar__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--cyan-300));
  border-radius: 3px;
  width: 0%;
  transition: width 1.2s var(--ease-out);
}