/* ═══════════════════════════════════════════════════════════════
   SHARED CSS FOR SOLUTION DETAIL PAGES
   Reuses design language from solutions.css & about.css
   Prefix: sd- (solution-detail)
   ═══════════════════════════════════════════════════════════════ */

:root {
  --sd-primary: #ea740c;
  --sd-primary-light: rgba(234, 116, 12, 0.1);
  --sd-primary-mid: rgba(234, 116, 12, 0.25);
  --sd-secondary: #1e3a5f;
  --sd-secondary-light: rgba(30, 58, 95, 0.08);
  --sd-accent: #10b981;
  --sd-accent-light: rgba(16, 185, 129, 0.12);
  --sd-on-surface: #0f172a;
  --sd-on-surface-variant: #475569;
  --sd-surface: #f8fafc;
  --sd-white: #ffffff;
  --sd-border: rgba(30, 58, 95, 0.1);
  --sd-font: 'Inter', 'Poppins', sans-serif;
  --sd-ease: cubic-bezier(0.4, 0, 0.2, 1);
  --sd-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --sd-ease-out: cubic-bezier(0, 0, 0.2, 1);
  --sd-shadow-sm: 0 1px 4px rgba(15, 23, 42, 0.06);
  --sd-shadow-md: 0 4px 20px rgba(15, 23, 42, 0.09);
  --sd-shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.13);
  --sd-shadow-xl: 0 24px 64px rgba(15, 23, 42, 0.16);
  --sd-delay: 0s;
  --gradient-warm: linear-gradient(135deg, #ff9a3c 0%, #ea740c 50%, #d46500 100%);
  --gradient-dark: linear-gradient(160deg, #1e3a5f 0%, #0f172a 100%);
}

/* ── Scroll animation ── */
[data-sd-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.72s var(--sd-ease-out), transform 0.72s var(--sd-ease-out);
  transition-delay: var(--sd-delay, 0s);
}
[data-sd-animate="left"]  { transform: translateX(-40px); }
[data-sd-animate="right"] { transform: translateX(40px); }
[data-sd-animate="up"]    { transform: translateY(30px); }
[data-sd-animate="scale"] { transform: scale(0.88); }
[data-sd-animate].sd-visible {
  opacity: 1;
  transform: none;
}

/* ── Section utilities ── */
.sd-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  font-family: var(--sd-font);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sd-primary);
  margin-bottom: 1.4rem;
}
.sd-eyebrow::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--sd-primary);
  border-radius: 2px;
  display: inline-block;
}
.sd-section-title {
  font-family: var(--sd-font);
  font-size: clamp(2.8rem, 4vw, 4.2rem);
  font-weight: 800;
  color: var(--sd-on-surface);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.4rem;
}
.sd-section-title span { color: var(--sd-primary); }
.sd-section-title--white { color: #fff; }
.sd-section-desc {
  font-family: var(--sd-font);
  font-size: 1.65rem;
  color: var(--sd-on-surface-variant);
  line-height: 1.75;
  max-width: 620px;
}
.sd-section-desc--white { color: rgba(255,255,255,0.7); }
.sd-section-header { margin-bottom: 5.6rem; }
.sd-section-header--center { text-align: center; }
.sd-section-header--center .sd-eyebrow,
.sd-section-header--center .sd-eyebrow::before { display: none; }
.sd-section-header--center .sd-eyebrow {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 0;
  font-family: var(--sd-font);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sd-primary);
  padding: 0.5rem 1.4rem;
  background: var(--sd-primary-light);
  border-radius: 999px;
}
.sd-section-header--center .sd-section-desc { margin: 0 auto; }

/* ═══════════════════════════════════
   HERO
   ═══════════════════════════════════ */
.sd-hero {
  position: relative;
  min-height: 92vh;
  min-height: 92dvh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.sd-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.sd-hero__bg-img {
  width: 100%; height: 100%;
  object-fit: cover;
  transform: scale(1.07);
  animation: sd-parallax 18s ease-in-out infinite alternate;
}
@keyframes sd-parallax {
  from { transform: scale(1.07) translateX(-2%); }
  to   { transform: scale(1.07) translateX(2%); }
}
.sd-hero__bg-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(
    125deg,
    rgba(15,23,42,0.92) 0%,
    rgba(30,58,95,0.82) 45%,
    rgba(15,23,42,0.75) 100%
  );
}
.sd-hero__grid-pattern {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}
.sd-hero__orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.sd-hero__orb--1 {
  width: 560px; height: 560px;
  top: -140px; right: -80px;
  background: radial-gradient(circle, rgba(234,116,12,0.28), transparent 70%);
  animation: sd-orb 14s ease-in-out infinite alternate;
}
.sd-hero__orb--2 {
  width: 360px; height: 360px;
  bottom: -60px; left: -60px;
  background: radial-gradient(circle, rgba(16,185,129,0.18), transparent 70%);
  animation: sd-orb 10s ease-in-out infinite alternate-reverse;
}
@keyframes sd-orb {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(20px,-16px) scale(1.1); }
}
.sd-hero__inner {
  position: relative; z-index: 2;
  width: 100%;
  padding-top: 14rem;
  padding-bottom: 8rem;
}
.sd-hero__breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--sd-font);
  font-size: 1.35rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 3.2rem;
}
.sd-hero__breadcrumb a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  transition: color var(--sd-ease) 0.2s;
}
.sd-hero__breadcrumb a:hover { color: var(--sd-primary); }
.sd-hero__breadcrumb i { font-size: 1rem; }
.sd-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  background: rgba(234,116,12,0.12);
  border: 1px solid rgba(234,116,12,0.28);
  border-radius: 999px;
  padding: 0.7rem 1.8rem;
  font-family: var(--sd-font);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sd-primary);
  margin-bottom: 2.2rem;
}
.sd-hero__title {
  font-family: var(--sd-font);
  font-size: clamp(3.8rem, 5.5vw, 6.8rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 2.2rem;
}
.sd-hero__title .sd-hl {
  background: var(--gradient-warm);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.sd-hero__desc {
  font-family: var(--sd-font);
  font-size: 1.85rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.72;
  max-width: 680px;
  margin-bottom: 3.6rem;
}
.sd-hero__actions {
  display: flex;
  gap: 1.4rem;
  flex-wrap: wrap;
  margin-bottom: 5.6rem;
}
.sd-hero__btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1.4rem 3rem;
  background: var(--gradient-warm);
  color: #fff;
  border: none;
  border-radius: 999px;
  font-family: var(--sd-font);
  font-size: 1.5rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 8px 32px rgba(234,116,12,0.35);
  transition: all var(--sd-spring) 0.45s;
}
.sd-hero__btn-primary:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 16px 48px rgba(234,116,12,0.5);
  color: #fff;
}
.sd-hero__btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1.3rem 2.6rem;
  color: rgba(255,255,255,0.88);
  border: 1.5px solid rgba(255,255,255,0.25);
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  font-family: var(--sd-font);
  font-size: 1.5rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--sd-ease) 0.3s;
}
.sd-hero__btn-outline:hover {
  background: rgba(255,255,255,0.16);
  border-color: rgba(255,255,255,0.4);
  color: #fff;
  transform: translateY(-2px);
}
.sd-hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.4rem;
}
.sd-hero__stat {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px;
  padding: 2rem 1.6rem;
  text-align: center;
  backdrop-filter: blur(8px);
  transition: all var(--sd-spring) 0.4s;
  position: relative;
  overflow: hidden;
}
.sd-hero__stat::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient-warm);
  transform: scaleX(0);
  transition: transform var(--sd-ease) 0.35s;
}
.sd-hero__stat:hover { transform: translateY(-5px); background: rgba(255,255,255,0.1); }
.sd-hero__stat:hover::before { transform: scaleX(1); }
.sd-stat-number {
  display: block;
  font-family: var(--sd-font);
  font-size: 3.4rem;
  font-weight: 900;
  background: var(--gradient-warm);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.6rem;
}
.sd-count { display: inline-block; }
.sd-stat-label {
  font-family: var(--sd-font);
  font-size: 1.3rem;
  color: rgba(255,255,255,0.58);
  line-height: 1.4;
}
.sd-hero__scroll {
  position: absolute; bottom: 3rem; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.8rem;
  text-decoration: none; z-index: 3;
  animation: sd-scroll-bounce 2s ease-in-out infinite;
}
.sd-hero__scroll span {
  font-size: 1.2rem; color: rgba(255,255,255,0.45);
  font-family: var(--sd-font); letter-spacing: 0.06em;
}
.sd-hero__scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(180deg, rgba(255,255,255,0.4), transparent);
  animation: sd-scroll-line 2s ease-in-out infinite;
}
@keyframes sd-scroll-bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(8px); }
}
@keyframes sd-scroll-line {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ═══════════════════════════════════
   OVERVIEW (dark section)
   ═══════════════════════════════════ */
.sd-overview {
  background: var(--gradient-dark);
  padding: 9rem 0;
  position: relative; overflow: hidden;
}
.sd-overview::after {
  content: '';
  position: absolute; top: -40%; right: -5%;
  width: 55%; height: 180%;
  background: radial-gradient(ellipse, rgba(234,116,12,0.12), transparent 65%);
  pointer-events: none;
}
.sd-overview__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7rem;
  align-items: center;
}
.sd-overview__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  font-family: var(--sd-font);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sd-primary);
  margin-bottom: 1.6rem;
}
.sd-overview__eyebrow::before {
  content: '';
  width: 24px; height: 2px;
  background: var(--sd-primary); border-radius: 2px;
}
.sd-overview__title {
  font-family: var(--sd-font);
  font-size: clamp(2.8rem, 3.8vw, 4rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin-bottom: 1.8rem;
}
.sd-overview__title span { color: var(--sd-primary); }
.sd-overview__desc {
  font-family: var(--sd-font);
  font-size: 1.6rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.75;
  margin-bottom: 3rem;
}
.sd-overview__features {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.sd-overview__feature {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  padding: 1.4rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  transition: all var(--sd-ease) 0.3s;
}
.sd-overview__feature:hover {
  background: rgba(234,116,12,0.07);
  border-color: rgba(234,116,12,0.18);
  transform: translateX(6px);
}
.sd-overview__feature-icon {
  width: 42px; height: 42px;
  background: var(--sd-primary-light);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--sd-primary); font-size: 1.7rem;
  flex: 0 0 auto;
  transition: transform var(--sd-spring) 0.4s;
}
.sd-overview__feature:hover .sd-overview__feature-icon { transform: scale(1.12) rotate(5deg); }
.sd-overview__feature-text strong {
  display: block;
  font-family: var(--sd-font);
  font-size: 1.5rem; font-weight: 700;
  color: #fff; margin-bottom: 0.2rem;
}
.sd-overview__feature-text span {
  font-family: var(--sd-font);
  font-size: 1.35rem; color: rgba(255,255,255,0.5);
}
/* Right visuals */
.sd-overview__metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
}
.sd-metric-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 2.4rem 2rem;
  text-align: center;
  position: relative; overflow: hidden;
  transition: all var(--sd-spring) 0.42s;
}
.sd-metric-card::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-warm);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--sd-ease) 0.42s;
}
.sd-metric-card:hover { transform: translateY(-6px); background: rgba(255,255,255,0.09); }
.sd-metric-card:hover::after { transform: scaleX(1); }
.sd-metric-big {
  display: block;
  font-family: var(--sd-font);
  font-size: 3.8rem; font-weight: 900;
  background: var(--gradient-warm);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1; margin-bottom: 0.8rem;
}
.sd-metric-label {
  font-family: var(--sd-font);
  font-size: 1.3rem;
  color: rgba(255,255,255,0.52);
  line-height: 1.45;
}
.sd-metric-card--wide { grid-column: 1 / -1; }

/* ═══════════════════════════════════
   FEATURES GRID
   ═══════════════════════════════════ */
.sd-features {
  padding: 9rem 0;
  background: var(--sd-surface);
}
.sd-features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.sd-feat-card {
  background: var(--sd-white);
  border: 1px solid var(--sd-border);
  border-radius: 18px;
  padding: 3rem 2.6rem;
  position: relative; overflow: hidden;
  transition: all var(--sd-spring) 0.45s;
}
.sd-feat-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--sd-shadow-lg);
  border-color: transparent;
}
.sd-feat-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-warm);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--sd-ease) 0.42s;
}
.sd-feat-card:hover::before { transform: scaleX(1); }
.sd-feat-card__icon {
  width: 54px; height: 54px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.2rem;
  margin-bottom: 2rem;
  transition: transform var(--sd-spring) 0.4s;
}
.sd-feat-card:hover .sd-feat-card__icon { transform: scale(1.1) rotate(5deg); }
.sd-feat-card__icon--orange { background: var(--sd-primary-light); color: var(--sd-primary); }
.sd-feat-card__icon--green  { background: var(--sd-accent-light); color: var(--sd-accent); }
.sd-feat-card__icon--blue   { background: var(--sd-secondary-light); color: var(--sd-secondary); }
.sd-feat-card__icon--purple { background: rgba(139,92,246,0.1); color: #7c3aed; }
.sd-feat-card__title {
  font-family: var(--sd-font);
  font-size: 1.8rem; font-weight: 700;
  color: var(--sd-on-surface);
  margin-bottom: 1rem;
}
.sd-feat-card__desc {
  font-family: var(--sd-font);
  font-size: 1.45rem;
  color: var(--sd-on-surface-variant);
  line-height: 1.7;
}

/* ═══════════════════════════════════
   ALTERNATING (how it works)
   ═══════════════════════════════════ */
.sd-alt-section {
  padding: 9rem 0;
  background: var(--sd-white);
}
.sd-alt-section--gray { background: var(--sd-surface); }
.sd-alt__item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8rem;
  align-items: center;
  margin-bottom: 8rem;
}
.sd-alt__item:last-child { margin-bottom: 0; }
.sd-alt__item--reverse .sd-alt__visual { order: -1; }
.sd-alt__visual {
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--sd-shadow-xl);
  position: relative;
}
.sd-alt__img {
  width: 100%; height: 380px;
  object-fit: cover; display: block;
  transition: transform 0.72s var(--sd-ease);
}
.sd-alt__item:hover .sd-alt__img { transform: scale(1.04); }
.sd-alt__badge {
  position: absolute; bottom: 2rem; left: 2rem;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-radius: 12px;
  padding: 1.2rem 1.8rem;
  display: flex; align-items: center; gap: 1rem;
  box-shadow: var(--sd-shadow-md);
}
.sd-alt__badge-icon {
  width: 40px; height: 40px;
  background: var(--sd-primary-light);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--sd-primary); font-size: 1.6rem; flex: 0 0 auto;
}
.sd-alt__badge strong {
  display: block;
  font-family: var(--sd-font); font-size: 2rem; font-weight: 900;
  color: var(--sd-on-surface); line-height: 1;
}
.sd-alt__badge span {
  font-family: var(--sd-font); font-size: 1.2rem;
  color: var(--sd-on-surface-variant);
}
.sd-alt__text-eyebrow {
  display: inline-flex;
  align-items: center; gap: 0.8rem;
  font-family: var(--sd-font); font-size: 1.2rem;
  font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--sd-primary);
  margin-bottom: 1.4rem;
}
.sd-alt__text-eyebrow::before {
  content: ''; width: 20px; height: 2px;
  background: var(--sd-primary); border-radius: 2px;
}
.sd-alt__text-title {
  font-family: var(--sd-font);
  font-size: clamp(2.4rem, 3.2vw, 3.6rem);
  font-weight: 800;
  color: var(--sd-on-surface);
  line-height: 1.2; letter-spacing: -0.02em;
  margin-bottom: 1.6rem;
}
.sd-alt__text-title span { color: var(--sd-primary); }
.sd-alt__text-desc {
  font-family: var(--sd-font);
  font-size: 1.55rem;
  color: var(--sd-on-surface-variant);
  line-height: 1.75; margin-bottom: 2.4rem;
}
.sd-alt__list {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 0.8rem; margin-bottom: 2.8rem;
}
.sd-alt__list-item {
  display: flex; align-items: center; gap: 0.7rem;
  font-family: var(--sd-font); font-size: 1.4rem;
  color: var(--sd-on-surface-variant);
}
.sd-alt__list-item i { color: var(--sd-accent); font-size: 1.2rem; flex: 0 0 auto; }
.sd-alt__cta {
  display: inline-flex; align-items: center; gap: 0.8rem;
  padding: 1.2rem 2.6rem;
  background: var(--gradient-warm);
  color: #fff; border: none; border-radius: 999px;
  font-family: var(--sd-font); font-size: 1.45rem; font-weight: 700;
  cursor: pointer; text-decoration: none;
  box-shadow: 0 6px 24px rgba(234,116,12,0.3);
  transition: all var(--sd-spring) 0.4s;
}
.sd-alt__cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(234,116,12,0.42);
  color: #fff;
}

/* ═══════════════════════════════════
   PROCESS STEPS
   ═══════════════════════════════════ */
.sd-process {
  padding: 9rem 0;
  background: var(--sd-surface);
  position: relative; overflow: hidden;
}
.sd-process::before {
  content: '';
  position: absolute; top: 0; right: 0;
  width: 40%; height: 100%;
  background: radial-gradient(ellipse at right, rgba(234,116,12,0.06), transparent 65%);
  pointer-events: none;
}
.sd-process__steps {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 2rem; position: relative;
}
.sd-process__steps::before {
  content: '';
  position: absolute; top: 3.4rem;
  left: calc(12.5% + 2rem); right: calc(12.5% + 2rem);
  height: 2px;
  background: linear-gradient(90deg, rgba(234,116,12,0.6), rgba(30,58,95,0.4), rgba(234,116,12,0.6));
  z-index: 0;
}
.sd-step {
  display: flex; flex-direction: column;
  align-items: center; text-align: center;
  position: relative; z-index: 1;
}
.sd-step__num {
  width: 70px; height: 70px; border-radius: 50%;
  background: #fff; border: 3px solid var(--sd-primary);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--sd-font); font-size: 2.2rem; font-weight: 900;
  color: var(--sd-primary); margin-bottom: 2rem;
  box-shadow: 0 0 0 8px rgba(234,116,12,0.08);
  transition: all var(--sd-spring) 0.4s; position: relative;
}
.sd-step:hover .sd-step__num {
  background: var(--gradient-warm); color: #fff;
  border-color: transparent;
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(234,116,12,0.35);
}
.sd-step__icon-badge {
  position: absolute; bottom: -8px; right: -8px;
  width: 26px; height: 26px;
  background: var(--sd-secondary); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1rem; border: 2px solid #fff;
}
.sd-step__title {
  font-family: var(--sd-font); font-size: 1.65rem; font-weight: 700;
  color: var(--sd-on-surface); margin-bottom: 0.8rem;
}
.sd-step__desc {
  font-family: var(--sd-font); font-size: 1.38rem;
  color: var(--sd-on-surface-variant); line-height: 1.65;
}

/* ═══════════════════════════════════
   SPECS TABLE
   ═══════════════════════════════════ */
.sd-specs {
  padding: 9rem 0;
  background: var(--sd-white);
}

/* ── Wrapper để overflow-x scroll trên tablet nhỏ ── */
.sd-specs-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 16px;
  box-shadow: var(--sd-shadow-md);
}

.sd-specs-table {
  width: 100%; border-collapse: collapse;
  border-radius: 16px; overflow: hidden;
  font-family: var(--sd-font);
}
.sd-specs-table thead th {
  background: var(--gradient-dark);
  color: #fff;
  padding: 1.6rem 2rem;
  font-size: 1.4rem; font-weight: 700;
  text-align: left;
  white-space: nowrap;
}
.sd-specs-table thead th:first-child { border-radius: 16px 0 0 0; }
.sd-specs-table thead th:last-child  { border-radius: 0 16px 0 0; }
.sd-specs-table tbody tr:nth-child(even) { background: var(--sd-surface); }
.sd-specs-table tbody tr:hover { background: var(--sd-primary-light); }
.sd-specs-table td {
  padding: 1.4rem 2rem;
  font-size: 1.45rem;
  color: var(--sd-on-surface-variant);
  border-bottom: 1px solid var(--sd-border);
}
.sd-specs-table td:first-child {
  font-weight: 600;
  color: var(--sd-on-surface);
}


/* \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550
   SPECS TABLE \u2014 MOBILE TAB LAYOUT
   Hi\u1ec7n khi < 768px: \u1ea9n table, hi\u1ec7n tabs
   \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 */
.sd-specs-mobile {
  display: none; /* \u1ea8n tr\u00ean desktop */
  flex-direction: column;
  gap: 0;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--sd-shadow-md);
  border: 1px solid var(--sd-border);
}

/* \u2500 Tab selector bar \u2500 */
.sd-specs-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--gradient-dark);
}

.sd-specs-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  padding: 1.4rem 0.8rem;
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  transition: all var(--sd-ease) 0.25s;
  position: relative;
}
.sd-specs-tab + .sd-specs-tab {
  border-left: 1px solid rgba(255,255,255,0.08);
}
.sd-specs-tab--active {
  background: rgba(234,116,12,0.12);
  border-bottom-color: var(--sd-primary);
}

/* Dot indicator (m\u00e0u s\u1eafc theo phi\u00ean b\u1ea3n) */
.sd-specs-tab__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-bottom: 0.2rem;
  transition: transform var(--sd-spring) 0.3s;
}
.sd-specs-tab--active .sd-specs-tab__dot { transform: scale(1.25); }
.sd-specs-tab__dot--basic    { background: #10b981; }
.sd-specs-tab__dot--standard { background: #3b82f6; }
.sd-specs-tab__dot--plus     { background: var(--sd-primary); }

.sd-specs-tab__name {
  font-family: var(--sd-font);
  font-size: 1.35rem;
  font-weight: 700;
  color: rgba(255,255,255,0.55);
  transition: color var(--sd-ease) 0.25s;
}
.sd-specs-tab--active .sd-specs-tab__name {
  color: #fff;
}

.sd-specs-tab__sub {
  font-family: var(--sd-font);
  font-size: 1.05rem;
  color: rgba(255,255,255,0.35);
  transition: color var(--sd-ease) 0.25s;
}
.sd-specs-tab--active .sd-specs-tab__sub {
  color: var(--sd-primary);
}

/* \u2500 Panel specs (m\u1ed7i tab \u1ee9ng v\u1edbi 1 panel) \u2500 */
.sd-specs-panel {
  display: none;
  background: var(--sd-white);
}
.sd-specs-panel--active {
  display: block;
  animation: sd-panel-in 0.28s var(--sd-ease-out) both;
}
@keyframes sd-panel-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}

.sd-specs-panel__inner {
  padding: 0;
}

/* \u2500 M\u1ed7i d\u00f2ng specs: label + value \u2500 */
.sd-specs-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.6rem;
  border-bottom: 1px solid var(--sd-border);
  transition: background var(--sd-ease) 0.2s;
}
.sd-specs-row:last-child { border-bottom: none; }
.sd-specs-row:nth-child(even) { background: var(--sd-surface); }
.sd-specs-row:hover { background: var(--sd-primary-light); }

/* H\u00e0ng n\u1ed5i b\u1eadt (AI Performance) */
.sd-specs-row--highlight {
  background: rgba(234,116,12,0.05);
}
.sd-specs-row--highlight:hover { background: var(--sd-primary-light); }

.sd-specs-row__label {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--sd-font);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--sd-on-surface);
  min-width: 0;
  flex: 0 0 auto;
}
.sd-specs-row__label i {
  font-size: 1.2rem;
  color: var(--sd-primary);
  width: 18px;
  text-align: center;
  flex: 0 0 auto;
}

.sd-specs-row__val {
  font-family: var(--sd-font);
  font-size: 1.32rem;
  color: var(--sd-on-surface-variant);
  text-align: right;
  line-height: 1.4;
}
.sd-specs-row--highlight .sd-specs-row__val {
  font-weight: 700;
  color: var(--sd-primary);
  font-size: 1.45rem;
}



/* ═══════════════════════════════════
   USECASES
   ═══════════════════════════════════ */
.sd-usecases {
  padding: 9rem 0;
  background: var(--sd-surface);
}
.sd-usecases__grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.sd-usecase-card {
  background: var(--sd-white);
  border: 1px solid var(--sd-border);
  border-radius: 18px;
  overflow: hidden;
  transition: all var(--sd-spring) 0.45s;
}
.sd-usecase-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--sd-shadow-lg);
  border-color: transparent;
}
.sd-usecase-card__media {
  position: relative; height: 200px; overflow: hidden;
}
.sd-usecase-card__img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.7s var(--sd-ease);
}
.sd-usecase-card:hover .sd-usecase-card__img { transform: scale(1.08); }
.sd-usecase-card__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(15,23,42,0.5) 100%);
}
.sd-usecase-card__sector {
  position: absolute; bottom: 1.2rem; left: 1.6rem;
  background: var(--sd-primary);
  color: #fff; font-family: var(--sd-font);
  font-size: 1.1rem; font-weight: 700;
  letter-spacing: 0.04em; text-transform: uppercase;
  padding: 0.3rem 1rem; border-radius: 999px;
}
.sd-usecase-card__body {
  padding: 2.4rem 2.4rem 2.8rem;
}
.sd-usecase-card__title {
  font-family: var(--sd-font); font-size: 1.8rem; font-weight: 700;
  color: var(--sd-on-surface); margin-bottom: 0.9rem;
}
.sd-usecase-card__desc {
  font-family: var(--sd-font); font-size: 1.42rem;
  color: var(--sd-on-surface-variant); line-height: 1.68;
}

/* ═══════════════════════════════════
   CTA BANNER
   ═══════════════════════════════════ */
.sd-cta {
  padding: 9rem 0;
  background: linear-gradient(135deg, var(--sd-secondary) 0%, color-mix(in srgb, var(--sd-secondary) 60%, var(--sd-primary)) 100%);
  text-align: center;
  position: relative; overflow: hidden;
}
.sd-cta::before {
  content: '';
  position: absolute; top: -50%; left: -10%;
  width: 50%; height: 200%;
  background: radial-gradient(ellipse, rgba(255,255,255,0.08), transparent 65%);
}
.sd-cta::after {
  content: '';
  position: absolute; bottom: -40%; right: -5%;
  width: 40%; height: 120%;
  background: radial-gradient(ellipse, rgba(234,116,12,0.12), transparent 65%);
}
.sd-cta__inner { position: relative; z-index: 1; }
.sd-cta__badge {
  display: inline-flex; align-items: center; gap: 0.8rem;
  background: rgba(234,116,12,0.15); border: 1px solid rgba(234,116,12,0.3);
  color: var(--sd-primary);
  font-family: var(--sd-font); font-size: 1.2rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.6rem 1.6rem; border-radius: 999px; margin-bottom: 2.4rem;
}
.sd-cta__title {
  font-family: var(--sd-font);
  font-size: clamp(3rem, 4.5vw, 5rem);
  font-weight: 900; color: #fff;
  line-height: 1.12; letter-spacing: -0.02em; margin-bottom: 1.6rem;
}
.sd-cta__title span { color: var(--sd-primary); }
.sd-cta__desc {
  font-family: var(--sd-font); font-size: 1.8rem;
  color: rgba(255,255,255,0.7); line-height: 1.65;
  margin: 0 auto 4rem; max-width: 640px;
}
.sd-cta__actions {
  display: flex; gap: 1.6rem;
  justify-content: center; flex-wrap: wrap;
}
.sd-cta__btn-primary {
  display: inline-flex; align-items: center; gap: 0.8rem;
  padding: 1.5rem 3.2rem;
  background: #fff; color: var(--sd-secondary);
  border: none; border-radius: 999px;
  font-family: var(--sd-font); font-size: 1.5rem; font-weight: 700;
  text-decoration: none; cursor: pointer;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  transition: all var(--sd-spring) 0.42s;
}
.sd-cta__btn-primary:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 16px 48px rgba(0,0,0,0.22);
  color: var(--sd-primary);
}
.sd-cta__btn-outline {
  display: inline-flex; align-items: center; gap: 0.8rem;
  padding: 1.4rem 2.8rem;
  border: 2px solid rgba(255,255,255,0.45);
  color: #fff; background: transparent; border-radius: 999px;
  font-family: var(--sd-font); font-size: 1.5rem; font-weight: 600;
  text-decoration: none;
  transition: all var(--sd-ease) 0.3s;
}
.sd-cta__btn-outline:hover {
  background: rgba(255,255,255,0.1); border-color: #fff;
  color: #fff; transform: translateY(-3px);
}

/* ═══════════════════════════════════
   VIDEO MODAL (shared)
   ═══════════════════════════════════ */
.sd-modal {
  position: fixed; inset: 0; z-index: 10000;
  display: flex; align-items: center; justify-content: center; padding: 2rem;
  opacity: 0; pointer-events: none;
  transition: opacity var(--sd-ease) 0.35s;
}
.sd-modal.sd-modal--open { opacity: 1; pointer-events: all; }
.sd-modal__backdrop {
  position: absolute; inset: 0;
  background: rgba(15,23,42,0.9); backdrop-filter: blur(8px);
}
.sd-modal__box {
  position: relative; z-index: 1;
  width: 100%; max-width: 900px; aspect-ratio: 16/9;
  border-radius: 20px; overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.5);
  transform: scale(0.86) translateY(30px);
  transition: transform var(--sd-spring) 0.5s;
}
.sd-modal--open .sd-modal__box { transform: scale(1) translateY(0); }
.sd-modal__close {
  position: absolute; top: -1.2rem; right: -1.2rem;
  width: 44px; height: 44px;
  background: #fff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  border: none; cursor: pointer;
  color: var(--sd-on-surface); font-size: 1.8rem;
  box-shadow: var(--sd-shadow-md); z-index: 10;
  transition: all var(--sd-spring) 0.3s;
}
.sd-modal__close:hover { background: var(--sd-primary); color: #fff; transform: rotate(90deg) scale(1.1); }
.sd-modal__video { width: 100%; height: 100%; border: none; }

/* ═══════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════ */
@media (max-width: 1024px) {
  .sd-overview__grid { grid-template-columns: 1fr; gap: 5rem; }
  .sd-overview__metrics { grid-template-columns: repeat(2, 1fr); }
  .sd-features__grid { grid-template-columns: repeat(2, 1fr); }
  .sd-process__steps { grid-template-columns: repeat(2, 1fr); gap: 3rem; }
  .sd-process__steps::before { display: none; }
  .sd-alt__item { grid-template-columns: 1fr; gap: 4rem; }
  .sd-alt__item--reverse .sd-alt__visual { order: 0; }
  .sd-alt__list { grid-template-columns: 1fr; }
  .sd-usecases__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .sd-hero__title { font-size: 3.8rem; }
  .sd-hero__stats { grid-template-columns: repeat(2, 1fr); }
  .sd-features__grid { grid-template-columns: 1fr; }
  .sd-usecases__grid { grid-template-columns: 1fr; }
  .sd-alt__img { height: 260px; }
  .sd-hero__inner { padding-top: 10rem; padding-bottom: 6rem; padding-inline: 1rem; }

  /* ── Specs Table: ẩn table, hiện cards ── */
  .sd-specs-table-wrap { display: none; }
  .sd-specs-mobile { display: flex; }
  .sd-specs { padding: 6rem 0; }
}
@media (max-width: 480px) {
  .sd-hero__stats { grid-template-columns: 1fr 1fr; }
  .sd-process__steps { grid-template-columns: 1fr; }
  .sd-cta__actions { flex-direction: column; align-items: center; }
  .sd-overview__metrics { grid-template-columns: 1fr 1fr; }
}