/* ─────────────────────────────────────────────────────────────
   AITEC — เว็บไซต์บริษัท
   เขียน CSS เองทั้งหมด ไม่มีขั้นตอน build ของ framework
   เพราะเว็บการตลาดหน้าเดียวควรโหลดเร็วที่สุดบนเน็ตมือถือไทย
   ───────────────────────────────────────────────────────────── */

:root {
  --brand: #0e9f6e;
  --brand-bright: #14c98a;
  --brand-deep: #046c4e;
  --brand-wash: #eafaf3;

  --ink: #0a1512;
  --ink-2: #33453f;
  --ink-3: #5d716a;

  --canvas: #ffffff;
  --surface: #f5f8f7;
  --surface-2: #eef3f1;
  --line: #e0e8e5;
  --line-strong: #cfdbd7;

  --dark: #04211a;
  --dark-2: #072b22;
  --dark-line: rgba(255, 255, 255, 0.12);
  --dark-text: #dcefe8;
  --dark-text-2: #9fbfb5;

  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 1px 2px rgba(10, 21, 18, 0.05), 0 4px 12px rgba(10, 21, 18, 0.04);
  --shadow: 0 2px 4px rgba(10, 21, 18, 0.06), 0 12px 32px rgba(10, 21, 18, 0.08);
  --shadow-lg: 0 24px 64px rgba(4, 33, 26, 0.18);

  --maxw: 1160px;
  --gutter: 24px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  /* กันไม่ให้หัวข้อโดน nav ที่ปักบนบังเวลากดลิงก์ในหน้า */
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: 'IBM Plex Sans Thai', 'IBM Plex Sans', -apple-system,
    BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.25;
  letter-spacing: -0.015em;
  font-weight: 700;
}

p {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

:focus-visible {
  outline: 3px solid var(--brand-bright);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 100;
  background: var(--ink);
  color: #fff;
  padding: 10px 18px;
  border-radius: 10px;
  transition: top 0.15s;
}
.skip-link:focus {
  top: 16px;
}

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ─── Header ─────────────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 72px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
  flex: none;
}

.brand-mark {
  width: 34px;
  height: 34px;
  flex: none;
}

.brand-name {
  font-size: 19px;
  line-height: 1;
}
.brand-name small {
  display: block;
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-top: 3px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-inline-start: auto;
}

.site-nav a {
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
  padding: 8px 12px;
  border-radius: 10px;
  white-space: nowrap;
}
.site-nav a:hover {
  color: var(--ink);
  background: var(--surface-2);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  overflow: hidden;
  font-size: 13px;
  font-weight: 600;
}
.lang-switch a {
  text-decoration: none;
  padding: 5px 12px;
  color: var(--ink-3);
}
.lang-switch a[aria-current='true'] {
  background: var(--ink);
  color: #fff;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line-strong);
  background: #fff;
  border-radius: 10px;
  width: 42px;
  height: 42px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav-toggle svg {
  width: 22px;
  height: 22px;
}

/* ─── ปุ่ม ────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease,
    background-color 0.12s ease;
  white-space: nowrap;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 4px 14px rgba(14, 159, 110, 0.32);
}
.btn-primary:hover {
  background: var(--brand-bright);
}

.btn-ghost {
  border-color: var(--line-strong);
  color: var(--ink);
  background: #fff;
}
.btn-ghost:hover {
  background: var(--surface);
}

.btn-on-dark {
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}
.btn-on-dark:hover {
  background: rgba(255, 255, 255, 0.14);
}

.btn-sm {
  padding: 9px 18px;
  font-size: 15px;
}

/* ─── โครงหน้า ─────────────────────────────────────────────── */

section {
  padding-block: clamp(64px, 8vw, 108px);
}

.section-head {
  max-width: 760px;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brand-deep);
  margin-bottom: 16px;
}
.kicker::before {
  content: '';
  width: 22px;
  height: 2px;
  background: var(--brand);
  border-radius: 2px;
}

h2.section-title {
  font-size: clamp(28px, 4vw, 42px);
}

.section-lead {
  margin-top: 18px;
  font-size: 18px;
  color: var(--ink-2);
}

.section-dark {
  background: var(--dark);
  color: var(--dark-text);
}
.section-dark .kicker {
  color: var(--brand-bright);
}
.section-dark .kicker::before {
  background: var(--brand-bright);
}
.section-dark h2,
.section-dark h3 {
  color: #fff;
}
.section-dark .section-lead {
  color: var(--dark-text-2);
}

.section-tint {
  background: var(--surface);
}

/* ─── Hero ───────────────────────────────────────────────── */

.hero {
  position: relative;
  background: radial-gradient(
      120% 90% at 78% 8%,
      rgba(20, 201, 138, 0.22) 0%,
      transparent 58%
    ),
    linear-gradient(160deg, #04211a 0%, #072b22 55%, #04211a 100%);
  color: var(--dark-text);
  overflow: hidden;
  padding-block: clamp(56px, 7vw, 96px) clamp(64px, 8vw, 112px);
}

/* เส้นตารางจาง ๆ ให้พื้นหลังไม่ตัน */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.045) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(80% 60% at 30% 20%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(
    80% 60% at 30% 20%,
    #000 0%,
    transparent 75%
  );
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 15px 7px 11px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--dark-text);
  margin-bottom: 26px;
}
.hero-eyebrow .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-bright);
  box-shadow: 0 0 0 4px rgba(20, 201, 138, 0.2);
}

.hero h1 {
  font-size: clamp(34px, 5.4vw, 60px);
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: #fff;
}
.hero h1 em {
  font-style: normal;
  color: var(--brand-bright);
  display: inline-block;
}

.hero-lead {
  margin-top: 24px;
  font-size: clamp(17px, 1.6vw, 19px);
  color: var(--dark-text-2);
  max-width: 56ch;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid var(--dark-line);
}
.hero-badges li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  color: var(--dark-text-2);
}
.hero-badges svg {
  width: 17px;
  height: 17px;
  flex: none;
  color: var(--brand-bright);
}

/* ─── ภาพจำลองแดชบอร์ดในหน้าแรก ─────────────────────────── */

.hero-visual {
  position: relative;
}

.mock {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  color: var(--ink);
}

.mock-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.mock-bar i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--line-strong);
}
.mock-bar span {
  margin-inline-start: 10px;
  font-size: 12px;
  color: var(--ink-3);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.mock-body {
  padding: 18px;
  display: grid;
  gap: 14px;
}

.mock-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.mock-stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
}
.mock-stat b {
  display: block;
  font-size: 22px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.mock-stat small {
  font-size: 11.5px;
  color: var(--ink-3);
}
.mock-stat.up b {
  color: var(--brand-deep);
}

.mock-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
}
.mock-row .idc {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--brand-wash);
  color: var(--brand-deep);
  display: grid;
  place-items: center;
  flex: none;
}
.mock-row .idc svg {
  width: 18px;
  height: 18px;
}
.mock-row .meta {
  min-width: 0;
  flex: 1;
}
.mock-row .meta b {
  display: block;
  font-size: 14.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mock-row .meta small {
  font-size: 12px;
  color: var(--ink-3);
}

.pill {
  font-size: 11.5px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.pill-live {
  background: var(--brand-wash);
  color: var(--brand-deep);
}
.pill-idle {
  background: var(--surface-2);
  color: var(--ink-3);
}

.mock-chart {
  height: 92px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
}
.mock-chart svg {
  width: 100%;
  height: 100%;
}

/* โทรศัพท์ที่ลอยทับมุมแดชบอร์ด */
.mock-phone {
  position: absolute;
  right: -14px;
  bottom: -34px;
  width: 150px;
  background: #0a1512;
  border-radius: 26px;
  padding: 7px;
  box-shadow: var(--shadow-lg);
}
.mock-phone-screen {
  background: linear-gradient(170deg, #0e9f6e, #046c4e);
  border-radius: 20px;
  padding: 16px 13px;
  color: #fff;
  min-height: 208px;
  display: flex;
  flex-direction: column;
}
.mock-phone-screen .lbl {
  font-size: 10.5px;
  opacity: 0.82;
  letter-spacing: 0.04em;
}
.mock-phone-screen .kwh {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-top: 2px;
}
.mock-phone-screen .kwh span {
  font-size: 14px;
  font-weight: 500;
  opacity: 0.85;
}
.mock-phone-screen .ring {
  margin: 14px auto 0;
  width: 84px;
  height: 84px;
}
.mock-phone-screen .cost {
  margin-top: auto;
  background: rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  padding: 9px 11px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 12px;
}
.mock-phone-screen .cost b {
  font-size: 16px;
}

/* ─── การ์ด ───────────────────────────────────────────────── */

.grid {
  display: grid;
  gap: 20px;
  margin-top: 48px;
}
.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-sm);
}
.card h3 {
  font-size: 18.5px;
  margin-bottom: 10px;
}
.card p {
  color: var(--ink-2);
  font-size: 15.5px;
}

.section-dark .card {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--dark-line);
  box-shadow: none;
}
.section-dark .card p {
  color: var(--dark-text-2);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--brand-wash);
  color: var(--brand-deep);
  margin-bottom: 18px;
}
.card-icon svg {
  width: 22px;
  height: 22px;
}
.section-dark .card-icon {
  background: rgba(20, 201, 138, 0.14);
  color: var(--brand-bright);
}

/* การ์ดปัญหา — ใช้เลขนำแทนไอคอน */
.card-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--brand-deep);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

/* ─── ขั้นตอน ─────────────────────────────────────────────── */

.steps {
  margin-top: 48px;
  display: grid;
  gap: 0;
}
.step {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 22px;
  padding-bottom: 32px;
  position: relative;
}
.step:last-child {
  padding-bottom: 0;
}
/* เส้นเชื่อมระหว่างหมายเลขขั้นตอน */
.step:not(:last-child)::before {
  content: '';
  position: absolute;
  inset-inline-start: 27px;
  top: 56px;
  bottom: 6px;
  width: 2px;
  background: var(--line);
}
.step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #fff;
  border: 2px solid var(--brand);
  color: var(--brand-deep);
  font-weight: 700;
  font-size: 20px;
  position: relative;
  z-index: 1;
}
.step h3 {
  font-size: 20px;
  margin-top: 10px;
  margin-bottom: 8px;
}
.step p {
  color: var(--ink-2);
  max-width: 68ch;
}

/* ─── รายการติ๊กถูก ────────────────────────────────────────── */

.check-list {
  display: grid;
  gap: 14px;
}
.check-list li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 16.5px;
}
.check-list svg {
  width: 24px;
  height: 24px;
  color: var(--brand);
  margin-top: 2px;
}
.section-dark .check-list li {
  color: var(--dark-text);
}
.section-dark .check-list svg {
  color: var(--brand-bright);
}

/* ─── ส่วนแอป (สองคอลัมน์) ─────────────────────────────────── */

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}

.note-box {
  margin-top: 28px;
  padding: 18px 20px;
  border-inline-start: 3px solid var(--brand-bright);
  background: rgba(255, 255, 255, 0.05);
  border-radius: 0 12px 12px 0;
  font-size: 15px;
  color: var(--dark-text-2);
}

.phones {
  display: flex;
  justify-content: center;
  gap: 20px;
}
.phone-frame {
  width: min(230px, 42vw);
  background: #0a1512;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 34px;
  padding: 9px;
  box-shadow: var(--shadow-lg);
}
.phone-frame:nth-child(2) {
  transform: translateY(28px);
}
.phone-screen {
  background: #fff;
  border-radius: 26px;
  overflow: hidden;
  min-height: 400px;
  display: flex;
  flex-direction: column;
  color: var(--ink);
}
.phone-top {
  padding: 16px 15px 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.phone-top small {
  font-size: 11px;
  color: var(--ink-3);
}
.phone-top b {
  display: block;
  font-size: 15px;
}
.phone-list {
  padding: 12px;
  display: grid;
  gap: 10px;
}
.phone-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 11px;
}
.phone-card b {
  font-size: 13.5px;
  display: block;
}
.phone-card .rowline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 6px;
  font-size: 11.5px;
  color: var(--ink-3);
}
.phone-card .price {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.phone-charging {
  flex: 1;
  background: linear-gradient(170deg, #0e9f6e, #046c4e);
  color: #fff;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.phone-charging .ring {
  width: 132px;
  height: 132px;
  margin-block: 6px 14px;
}
.phone-charging .big {
  font-size: 15px;
  font-weight: 600;
}
.phone-charging .sub {
  font-size: 12px;
  opacity: 0.85;
}
.phone-charging .bar {
  margin-top: auto;
  width: 100%;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  padding: 10px 12px;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  align-items: baseline;
}
.phone-charging .bar b {
  font-size: 16px;
}

/* ─── สถิติ ───────────────────────────────────────────────── */

.stat-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  text-align: center;
}
.stat-band .v {
  font-size: clamp(32px, 4.5vw, 46px);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--brand-deep);
  line-height: 1.1;
}
.stat-band .l {
  font-size: 14.5px;
  color: var(--ink-2);
  margin-top: 4px;
}
.stat-note {
  text-align: center;
  font-size: 13.5px;
  color: var(--ink-3);
  margin-top: 28px;
}

/* ─── โรดแมป ──────────────────────────────────────────────── */

.roadmap-list {
  margin-top: 36px;
  display: grid;
  gap: 12px;
}
.roadmap-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 18px 20px;
  border: 1px dashed var(--line-strong);
  border-radius: 12px;
  background: #fff;
  font-size: 16px;
  color: var(--ink-2);
}
.roadmap-list .tag {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--brand-deep);
  background: var(--brand-wash);
  border-radius: 999px;
  padding: 4px 10px;
  white-space: nowrap;
  margin-top: 2px;
}

/* ─── เทคโนโลยี ───────────────────────────────────────────── */

.tech-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}
.tech-row span {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 14px;
  color: var(--ink-2);
  font-weight: 500;
}

/* ─── FAQ ─────────────────────────────────────────────────── */

.faq-list {
  margin-top: 44px;
  display: grid;
  gap: 12px;
  max-width: 860px;
}
.faq-list details {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  overflow: hidden;
}
.faq-list details[open] {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-sm);
}
.faq-list summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 22px;
  font-weight: 600;
  font-size: 17px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq-list summary::-webkit-details-marker {
  display: none;
}
.faq-list summary::after {
  content: '';
  width: 11px;
  height: 11px;
  flex: none;
  border-right: 2.5px solid var(--ink-3);
  border-bottom: 2.5px solid var(--ink-3);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 0.18s ease;
}
.faq-list details[open] summary::after {
  transform: rotate(-135deg) translate(-2px, -2px);
}
.faq-list .answer {
  padding: 0 22px 22px;
  color: var(--ink-2);
  font-size: 16px;
  max-width: 74ch;
}

/* ─── ติดต่อ ──────────────────────────────────────────────── */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}

.contact-cards {
  display: grid;
  gap: 14px;
}
.contact-card {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 18px 20px;
  border: 1px solid var(--dark-line);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 14px;
  text-decoration: none;
  color: var(--dark-text);
}
a.contact-card:hover {
  background: rgba(255, 255, 255, 0.09);
}
.contact-card .ic {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(20, 201, 138, 0.16);
  color: var(--brand-bright);
  display: grid;
  place-items: center;
}
.contact-card .ic svg {
  width: 21px;
  height: 21px;
}
.contact-card small {
  display: block;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--dark-text-2);
}
.contact-card b {
  font-size: 17px;
  font-weight: 600;
  overflow-wrap: anywhere;
}
.contact-card .addr {
  font-size: 15px;
  font-weight: 400;
  line-height: 1.6;
}

.contact-hint {
  margin-top: 22px;
  font-size: 14.5px;
  color: var(--dark-text-2);
}

/* ─── Footer ─────────────────────────────────────────────── */

.site-footer {
  background: #03150f;
  color: var(--dark-text-2);
  padding-block: 56px 28px;
  font-size: 15px;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr));
  gap: 36px;
}
.site-footer .brand-lockup {
  color: #fff;
}
.site-footer .brand-name small {
  color: var(--dark-text-2);
}
.footer-tagline {
  margin-top: 16px;
  max-width: 40ch;
}
.footer-col h4 {
  color: #fff;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.footer-col ul {
  display: grid;
  gap: 9px;
}
.footer-col a {
  text-decoration: none;
}
.footer-col a:hover {
  color: #fff;
  text-decoration: underline;
}
.footer-bottom {
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  justify-content: space-between;
  font-size: 13.5px;
}

/* ─── จอเล็ก ──────────────────────────────────────────────── */

@media (max-width: 1000px) {
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    inset-inline: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 12px var(--gutter) 20px;
    box-shadow: var(--shadow);
  }
  .site-nav.open {
    display: flex;
  }
  .site-nav a {
    padding: 12px;
    font-size: 16px;
  }
  .site-header {
    position: sticky;
  }
  .header-inner {
    position: relative;
  }
  .nav-toggle {
    display: inline-flex;
    margin-inline-start: auto;
    order: 3;
  }
  .header-actions {
    order: 2;
    margin-inline-start: auto;
  }
  .header-actions .btn {
    display: none;
  }
  .nav-toggle {
    margin-inline-start: 0;
  }

  .hero-grid,
  .split,
  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .hero-visual {
    margin-top: 8px;
  }
  .mock-phone {
    right: 4px;
    bottom: -24px;
    width: 124px;
  }
  .phone-frame:nth-child(2) {
    transform: none;
  }
}

@media (max-width: 680px) {
  body {
    font-size: 16px;
  }
  :root {
    --gutter: 18px;
  }
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: minmax(0, 1fr);
  }
  .stat-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px 16px;
  }
  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }
  .step {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 16px;
  }
  .step-num {
    width: 44px;
    height: 44px;
    font-size: 17px;
  }
  .step:not(:last-child)::before {
    inset-inline-start: 21px;
    top: 46px;
  }
  .mock-phone {
    display: none;
  }
  .phones {
    gap: 12px;
  }
  .phone-frame {
    width: min(190px, 46vw);
  }
  .hero-cta .btn {
    flex: 1 1 100%;
  }
  .card {
    padding: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

@media print {
  .site-header,
  .nav-toggle,
  .hero-visual,
  .phones {
    display: none;
  }
  body {
    color: #000;
  }
}