:root {
  color-scheme: light;

  --ossia-green: #07543b;
  --ossia-green-deep: #03452f;
  --ossia-green-dark: #063f30;
  --ossia-green-mid: #147b57;
  --ossia-green-soft: #1d805b;

  --ossia-mint: #cce9db;
  --ossia-pale: #eff7f2;
  --ossia-yellow: #f4b52c;
  --ossia-white: #f8fffb;
  --ossia-muted: #b5d3c5;

  --font-body: "DM Sans", system-ui, sans-serif;
  --font-heading: "Manrope", system-ui, sans-serif;
}

/* ==========================================
   RESET DASAR
   ========================================== */

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

body {
  font-family: var(--font-body);
  color: var(--ossia-white);
  background: radial-gradient(
    circle at 50% 15%,
    #fafffc,
    #e9f3ed 68%,
    #dcebe3
  );
  -webkit-font-smoothing: antialiased;
}

button {
  font: inherit;
}

button:focus-visible,
.slides:focus-visible {
  outline: 3px solid var(--ossia-yellow);
  outline-offset: 4px;
}

/* ==========================================
   HALAMAN LANDING OSSIA
   ========================================== */

.landing-page {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 24px;
}

/* ==========================================
   PHONE SHELL
   ========================================== */

.phone-shell {
  width: min(100%, 430px);
  height: min(860px, calc(100svh - 48px));
  min-height: 650px;

  position: relative;
  overflow: hidden;
  isolation: isolate;

  display: grid;

  /* Tetap menggunakan 3 baris:
     1. Ruang atas
     2. Konten slide
     3. Tombol dan pagination
  */
  grid-template-rows: 50px minmax(0, 1fr) auto;

  border-radius: 36px;

  background: linear-gradient(
    155deg,
    #07583f 0%,
    #064b36 56%,
    #03432f 100%
  );

  box-shadow:
    0 26px 70px rgba(4, 60, 42, .22),
    0 3px 10px rgba(4, 60, 42, .08);
}

/* ==========================================
   DEKORASI LATAR
   ========================================== */

.phone-shell::before,
.phone-shell::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(153, 216, 186, .12);
  border-radius: 50%;
  pointer-events: none;
  z-index: -1;
}

.phone-shell::before {
  width: 390px;
  height: 390px;
  right: -205px;
  top: 110px;

  box-shadow:
    0 0 0 30px rgba(160, 222, 191, .018),
    0 0 0 68px rgba(160, 222, 191, .015);
}

.phone-shell::after {
  width: 220px;
  height: 220px;
  left: -150px;
  bottom: -90px;
  background: rgba(131, 205, 166, .035);
}

.decor {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: -1;
}

.decor-one {
  width: 250px;
  height: 250px;
  top: 45px;
  right: -150px;
  background: rgba(35, 128, 91, .08);
}

.decor-two {
  width: 190px;
  height: 190px;
  bottom: 8%;
  left: -142px;
  background: rgba(57, 160, 113, .055);
}

/* ==========================================
   STATUS BAR MOBILE
   ========================================== */

.status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 17px 24px 0;

  font-size: 12px;
  font-weight: 700;
  letter-spacing: .01em;
  color: #f8fffb;
  z-index: 2;
}

.status-icons {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 13px;
}

.status-icons i {
  width: 3px;
  display: block;
  background: currentColor;
  border-radius: 2px;
}

.status-icons i:nth-child(1) {
  height: 5px;
}

.status-icons i:nth-child(2) {
  height: 8px;
}

.status-icons i:nth-child(3) {
  height: 11px;
}

.status-icons b {
  width: 17px;
  height: 9px;
  border: 1.3px solid currentColor;
  border-radius: 3px;
  margin-left: 4px;
  position: relative;
}

.status-icons b::after {
  content: "";
  position: absolute;
  width: 2px;
  height: 4px;
  background: currentColor;
  right: -4px;
  top: 1.2px;
  border-radius: 0 2px 2px 0;
}

/* ==========================================
   AREA SLIDE OSSIA
   ========================================== */

.slides {
  display: flex;
  min-width: 0;
  min-height: 0;

  overflow-x: auto;
  overflow-y: hidden;

  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;

  overscroll-behavior-x: contain;
  touch-action: pan-x pan-y;

  z-index: 1;
}

.slides::-webkit-scrollbar {
  display: none;
}

/* ==========================================
   SETIAP SLIDE
   ========================================== */

.slide {
  flex: 0 0 100%;
  width: 100%;
  min-width: 100%;
  min-height: 0;
  height: 100%;

  padding: 20px 27px 12px;

  display: flex;
  flex-direction: column;
  align-items: stretch;

  scroll-snap-align: start;
  scroll-snap-stop: always;

  overflow-y: auto;
  scrollbar-width: none;
}

.slide::-webkit-scrollbar {
  display: none;
}

/* ==========================================
   LOGO OSSIA
   ========================================== */

.brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;

  margin: 2px auto 25px;
  flex: 0 0 auto;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 11px;

  display: grid;
  place-items: center;

  position: relative;

  color: var(--ossia-green);
  background: var(--ossia-white);

  font-family: var(--font-heading);
  font-size: 27px;
  font-weight: 800;
  line-height: 1;

  box-shadow: 0 4px 14px rgba(0, 0, 0, .07);
}

.brand-spark {
  position: absolute;
  top: -3px;
  right: -3px;

  height: 11px;
  width: 11px;

  background: var(--ossia-yellow);
  border: 2px solid var(--ossia-green);
  border-radius: 50%;
}

.brand-name {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 25px;
  letter-spacing: -.04em;
}

/* ==========================================
   TEKS LANDING
   ========================================== */

.eyebrow {
  color: #9ccbb4;

  font: 700 9px/1.4 var(--font-body);
  letter-spacing: .2em;
  text-align: center;

  margin: 0 0 14px;
}

.slide h1,
.slide h2 {
  font: 700 clamp(27px, 7vw, 32px)/1.17 var(--font-heading);

  letter-spacing: -.045em;
  text-align: center;
  margin: 0;

  color: var(--ossia-white);
}

.slide h1 span,
.slide h2 span {
  color: var(--ossia-yellow);
}

.slide-copy {
  color: #d6e9df;
  font-size: 13px;
  line-height: 1.6;
  text-align: center;

  margin: 15px 0 0;
}

/* ==========================================
   SLIDE 1 - ILUSTRASI TULANG TANGAN
   ========================================== */

.hand-illustration {
  flex: 1 1 auto;

  min-height: 160px;
  max-height: 270px;

  margin: 8px 0 3px;

  position: relative;

  display: flex;
  justify-content: center;
  align-items: center;
}

.hand-glow {
  position: absolute;

  width: 205px;
  height: 205px;
  border-radius: 50%;

  background: radial-gradient(
    circle,
    rgba(74, 161, 116, .24),
    rgba(33, 126, 86, .06) 67%,
    transparent 68%
  );
}

.hand-illustration svg {
  width: min(100%, 240px);
  height: 100%;
  max-height: 260px;

  position: relative;
  overflow: visible;
}

.bone-lines {
  color: #b6e0c9;
  stroke-width: 2.6;
  opacity: .9;
}

.medical-note {
  margin: 0;

  color: #a6cbb8;
  font-size: 10px;
  font-weight: 500;
  line-height: 1.5;
  text-align: center;
}

.medical-note span {
  display: block;

  width: 26px;
  height: 2px;
  border-radius: 4px;

  background: #8ac7a7;
  margin: 0 auto 10px;
}

/* ==========================================
   SLIDE 2 - FITUR UTAMA OSSIA
   ========================================== */

.slide-features .brand {
  margin-bottom: 24px;
}

.slide-features .slide-copy {
  margin-bottom: 20px;
}

.feature-list {
  display: grid;
  gap: 11px;
  margin-top: 2px;
}

.feature-card {
  display: flex;
  align-items: center;
  gap: 13px;

  padding: 13px;
  min-height: 77px;

  border: 1px solid rgba(183, 229, 204, .13);
  border-radius: 16px;

  background: linear-gradient(
    110deg,
    rgba(168, 224, 192, .10),
    rgba(168, 224, 192, .055)
  );
}

.feature-icon {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;

  display: grid;
  place-items: center;

  border-radius: 13px;
  color: #f6fffa;
  background: rgba(31, 139, 96, .72);

  box-shadow: inset 0 1px rgba(255, 255, 255, .09);
}

.feature-icon svg {
  width: 23px;
  height: 23px;

  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;

  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-card strong {
  display: block;

  font-size: 12px;
  line-height: 1.4;
  font-weight: 700;
  color: #f5fff9;
}

.feature-card small {
  display: block;

  margin-top: 4px;

  color: #b9d8c7;
  font-size: 10px;
  line-height: 1.45;
}

/* ==========================================
   SLIDE 3 - PRIVASI DAN KEAMANAN
   ========================================== */

.slide-security .slide-copy {
  margin-bottom: 7px;
}

.security-art {
  flex: 1 1 auto;

  min-height: 150px;
  max-height: 250px;

  display: grid;
  place-items: center;

  position: relative;
  margin: 0 0 2px;
}

.security-halo {
  width: 200px;
  height: 180px;

  border-radius: 48%;

  background: radial-gradient(
    ellipse,
    rgba(75, 162, 116, .21),
    rgba(55, 142, 99, .05) 68%,
    transparent 70%
  );

  position: absolute;
}

.security-art svg {
  position: relative;
  z-index: 1;

  width: min(100%, 220px);
  height: 100%;
  max-height: 225px;
}

.shield-shadow {
  fill: rgba(16, 120, 79, .3);
  stroke: rgba(157, 220, 184, .3);
  stroke-width: 4;
}

.shield-line,
.lock-line {
  fill: none;
  stroke: #e1f7eb;
  stroke-width: 4;

  stroke-linejoin: round;
  stroke-linecap: round;
}

.security-list {
  list-style: none;
  padding: 0;
  margin: 0 0 7px;

  display: grid;
  gap: 10px;
}

.security-list li {
  display: flex;
  align-items: flex-start;
  gap: 9px;

  color: #d7eae0;
  font-size: 11px;
  line-height: 1.45;
}

.security-list li span {
  width: 19px;
  height: 19px;
  flex: 0 0 19px;

  display: grid;
  place-items: center;

  border-radius: 50%;
  background: #1b805b;
  color: white;

  font-size: 12px;
  font-weight: 800;
}

/* ==========================================
   PAGINATION DAN TOMBOL UTAMA
   ========================================== */

.slide-controls {
  padding:
    10px
    23px
    calc(18px + env(safe-area-inset-bottom));

  position: relative;
  z-index: 2;

  background: linear-gradient(
    180deg,
    rgba(5, 75, 53, 0),
    rgba(4, 69, 49, .28)
  );
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;

  margin-bottom: 20px;
}

.dot {
  width: 9px;
  height: 9px;

  border: 0;
  padding: 0;
  border-radius: 50%;

  background: rgba(194, 227, 208, .30);
  cursor: pointer;

  transition:
    width .2s ease,
    background .2s ease,
    transform .2s ease;
}

.dot.is-active {
  background: #f5fff9;
  transform: scale(1.08);
}

.dot:hover {
  background: #c6ead7;
}

/* ==========================================
   TOMBOL MULAI SEKARANG
   ========================================== */

.start-button {
  width: 100%;
  min-height: 49px;

  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;

  border: 0;
  border-radius: 999px;

  background: #f7fff9;
  color: #087650;

  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 800;

  box-shadow: 0 7px 18px rgba(0, 0, 0, .08);
  cursor: pointer;

  transition:
    transform .18s ease,
    background .18s ease;
}

.start-button:hover {
  background: #e6f7ec;
  transform: translateY(-1px);
}

.start-button:active {
  transform: translateY(0);
}

.start-button svg {
  width: 18px;
  height: 18px;

  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;

  stroke-linecap: round;
  stroke-linejoin: round;
}

.footer-note {
  margin: 13px 0 0;
  text-align: center;

  color: #9bc4b0;
  font-size: 8px;
  line-height: 1.4;
  letter-spacing: .01em;
}

/* ==========================================
   RESPONSIVE - LAYAR PENDEK
   ========================================== */

@media (max-height: 760px) and (min-width: 481px) {
  .phone-shell {
    min-height: 600px;
  }

  .slide {
    padding-top: 12px;
  }

  .brand {
    margin-bottom: 16px;
  }

  .hand-illustration {
    max-height: 190px;
    min-height: 120px;
  }

  .security-art {
    max-height: 165px;
    min-height: 110px;
  }

  .feature-card {
    min-height: 66px;
    padding: 10px 12px;
  }

  .feature-list {
    gap: 8px;
  }

  .slide-controls {
    padding-bottom: 11px;
  }
}

/* ==========================================
   RESPONSIVE - MOBILE
   ========================================== */

@media (max-width: 480px) {
  body {
    background: var(--ossia-green-deep);
  }

  .landing-page {
    padding: 0;
    min-height: 100svh;
  }

  .phone-shell {
    width: 100%;
    height: 100svh;
    min-height: 560px;
    max-height: none;
    border-radius: 0;
    box-shadow: none;
  }

  .status-bar {
    padding:
      max(14px, env(safe-area-inset-top))
      25px 0;
  }

  .slide {
    padding: 17px 27px 9px;
  }

  .brand {
    margin-bottom: 21px;
  }

  .slide h1,
  .slide h2 {
    font-size: clamp(27px, 7.4vw, 32px);
  }

  .slide-copy {
    font-size: 12.5px;
    margin-top: 13px;
  }

  .hand-illustration {
    min-height: 150px;
    max-height: 240px;
    margin-top: 3px;
  }

  .slide-controls {
    padding-bottom:
      calc(16px + env(safe-area-inset-bottom));
  }
}

/* ==========================================
   RESPONSIVE - HP KECIL
   ========================================== */

@media (max-width: 380px) {
  .slide {
    padding-left: 21px;
    padding-right: 21px;
  }

  .brand {
    margin-bottom: 17px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 24px;
  }

  .brand-name {
    font-size: 23px;
  }

  .slide-copy {
    font-size: 12px;
  }

  .feature-card {
    gap: 10px;
    padding: 10px;
    min-height: 70px;
  }

  .feature-icon {
    width: 39px;
    height: 39px;
    flex-basis: 39px;
  }

  .feature-card strong {
    font-size: 11px;
  }

  .feature-card small {
    font-size: 9.5px;
  }

  .security-list li {
    font-size: 10.5px;
  }

  .pagination {
    margin-bottom: 16px;
  }
}

/* ==========================================
   AKSESIBILITAS
   ========================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}

/* ==========================================
   PERBAIKAN LAYOUT LANDING OSSIA
   ========================================== */

/*
   Jam dan baterai disembunyikan.
   Baris atas tetap dipertahankan agar
   susunan slide tidak bergeser.
*/

.status-bar {
  display: none !important;
}

/*
   3 area utama:
   baris 1 = ruang atas
   baris 2 = konten slide
   baris 3 = pagination dan tombol
*/

.phone-shell {
  grid-template-rows: 50px minmax(0, 1fr) auto;
}

/* Konten slide harus berada di baris kedua */
.slides {
  grid-row: 2;
  min-height: 0;
}

/* Tombol dan pagination harus di baris ketiga */
.slide-controls {
  grid-row: 3;
}