/* =========================================================
   UB Aware — Landing Page Styles
   ========================================================= */

/* ---------- Design tokens ---------- */
:root {
  --color-green: #1db27e;
  --color-green-lighter: #C5FFEB;
  --color-green-light: #72D8B4;
  --color-green-dark: #2fb888;
  --color-dark: #2A2A2A;
  --color-dark-card: #202020;
  --color-light: #F2F2F2;
  --color-placeholder: #D9D9D9;
  --color-black: #2f2f2f;
  --color-white: #FFFFFF;
  --color-body: #4e4e4e;

  --ff-display: 'Google Sans', sans-serif;
  --ff-body: 'Google Sans', sans-serif;

  --fs-hero: clamp(2.25rem, 5vw + 1rem, 4rem);
  --fs-card-heading: clamp(1.25rem, 2vw + 0.5rem, 2.3rem);
  --fs-body: clamp(0.875rem, 1vw + 0.25rem, 1rem);
  --fs-label: 1.15rem;

  --radius-xl: 6rem;
  --radius-lg: 3rem;
  --radius-md: 1rem;

  --spacing-section: clamp(1.5rem, 3vw, 2.5rem);
  --spacing-gap: clamp(1rem, 3vw, 3rem);

  --max-width: 1600px;
  --header-height: 64px;
}

/* ---------- Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--ff-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--color-body);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-inline: var(--spacing-gap);
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 10rem;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.3) 0%, transparent 100%);
  z-index: 99;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.has-noise {
  position: relative;
}

.has-noise::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url('noise.png') repeat;
  opacity: 0.6;
  pointer-events: none;
  border-radius: inherit;
}

body.is-scrolled::before {
  opacity: 1;
}

/* Speech bubble */
.speech-bubble {
  display: inline-flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.6rem 1.2rem;
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 1rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.speech-bubble__label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-body);
  letter-spacing: 0.01em;
}

.speech-bubble__text {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-black);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ---------- Utilities ---------- */
.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 6rem;
  z-index: 100;
  width: 90%;
  margin: 0 auto;
  transition: top 0.3s ease;
  max-width: 1600px;
}

.site-header.is-scrolled {
  top: 2rem;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  margin: 0;
}

.nav-left {
  flex: 1;
}

.nav-list {
  display: flex;
  gap: 1.75rem;
  margin-left: 3.5rem;
}

.nav-list a {
  font-family: var(--ff-body);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-white);
  transition: color 0.2s;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--color-green-dark);
}

/* Logo */
.logo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.logo-img {
  height: 4rem;
  width: auto;
  display: block;
}

.logo-text {
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: 1.375rem;
  color: var(--color-dark);
  white-space: nowrap;
}

.logo-text--sm {
  font-size: 1.125rem;
}

.logo-icon {
  color: var(--color-green);
}

/* Header actions */
.header-actions {
  flex: 1;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--ff-body);
  font-weight: 700;
  font-size: 1.2rem;
  border: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}

.btn--primary {
  background: var(--color-dark);
  color: var(--color-white);
  border-radius: 0.8rem;
  padding: 0.7rem 4rem;
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--color-dark-card);
  color: var(--color-white);
}
.btn--primary:active{
  scale: 0.98;
}
/* Download icon (mobile only) */
.btn--download-icon {
  display: none;
}

/* Hamburger */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 18px;
  height: 1px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.hamburger {
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.hamburger::before {
  top: -7px;
}

.hamburger::after {
  top: 7px;
}

/* Hamburger open state */
.nav-open .hamburger {
  background: transparent;
}

.nav-open .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-open .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

/* Mobile nav */
.mobile-nav {
  display: none;
}

/* ---------- Hero ---------- */
.hero {
  background: var(--color-light) url('hero-bg3.jpg') center / cover no-repeat;
  border-radius: var(--radius-lg);
  margin: 0 auto;
  width: min(100% - 2rem, var(--max-width));
  padding: clamp(2rem, 3vw, 8rem) clamp(2rem, 3vw, 4rem) clamp(2rem, 6vw, 5rem);
  min-height: 52rem;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
}

.hero-title {
  font-family: var(--ff-display);
  font-size: var(--fs-hero);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-white);
  width: 100%;
  margin-left: 1rem;
}

.hero-title .accent {
  color: #29db8c;
  font-weight: 800;
}

/* ---------- Sections ---------- */
.section {
  padding-block: var(--spacing-gap);
}

/* ---------- Card grid ---------- */
.card-grid {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-gap);
}

.card-grid__row {
  display: grid;
  gap: var(--spacing-gap);
  grid-template-columns: 1fr 1fr;
}

.card-grid__row--65-35 {
  grid-template-columns: 60fr 40fr;
}

/* ---------- Cards ---------- */
.card {
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4.5vw, 4.5rem);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  corner-shape: squircle;
  box-shadow: 0 20px 40px 0 rgba(0, 0, 0, 0.05);
  border: 1px solid;
}
.card--center {
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.card--tall {
  min-height: clamp(260px, 40vw, 390px);
}

.card--green {
  background: linear-gradient(290deg, #111, #131313);
  color: var(--color-white);
  /* border-color: #6ae2b8; */
}

.card--green-bg {
  background: var(--color-green) url('card1-bg.png') 108% 100% / contain no-repeat;
}

.card--card2-bg {
  background: var(--color-white) url('card2-bg.png') 98% -10% / contain no-repeat;
}

.card--card3-bg {
  background: var(--color-white) url('card3-bg.png') 101% 90% / 26rem no-repeat;
}

.card--card4-bg {
  background: var(--color-white) url('card4-bg.png') 108% 100% / contain no-repeat;
}

.card--card6-bg {
  background: var(--color-white) url('card6-bg.png') center / cover no-repeat;
}

.card--map-bg {
  background: var(--color-white) url('map.jpg') 0 bottom / cover no-repeat;
}

.card--dark {
  background-color: var(--color-dark-card);
  border-color: #262626;
  /* color: rgba(255, 255, 255, 0.8); */
}

.card--light {
  background-color: var(--color-white);
  color: var(--color-body);
  border-color: #f0f0f0;
}

.card--placeholder {
  background: var(--color-placeholder);
}

/* Card typography */
.card-label {
  font-family: var(--ff-body);
  font-size: var(--fs-label);
  font-weight: 600;
  color: var(--color-black);
  text-transform: none;
  letter-spacing: 0.01em;
}

.card-label--green-lighter {
  color: #addfc9;
  margin-top: -1rem;
}

.card-label--green {
  color: var(--color-green);
}

.card-heading {
  font-family: var(--ff-display);
  font-size: var(--fs-card-heading);
  font-weight: 700;
  line-height: 1.15;
  width: 90%;
}

.card-heading--dark {
  color: var(--color-dark);
  font-size: clamp(1.5rem, 2.5vw + 0.5rem, 2rem);
}

.card p {
  font-size: var(--fs-body);
  line-height: 1.5;  
  width: 48%;
}

.card .card-p-full {
  width: 80%;
}

.link--green {
  color: var(--color-green-dark);
  font-weight: 600;
  font-size: var(--fs-body);
  margin-top: auto;
  transition: color 0.2s;
  margin-top: 1rem;
}

.link--green:hover,
.link--green:focus-visible {
  color: var(--color-green);
  text-decoration: underline;
}

/* ---------- Download App ---------- */
.download-app {
  padding: clamp(3rem, 6vw, 5rem) 0;
  text-align: center;
}

.download-app__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.download-app__title {
  font-family: var(--ff-display);
  font-size: var(--fs-card-heading);
  font-weight: 700;
  color: var(--color-dark);
}

.download-app__text {
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--color-body);
  max-width: 36rem;
}

.download-app__tagline {
  font-family: var(--ff-display);
  font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.35rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-dark);
  margin-top: 0.5rem;
}

.download-app__tagline strong {
  color: var(--color-green);
}

/* ---------- Footer ---------- */
.site-footer {
  padding: 2rem 0;
  margin-block: 1rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-copy {
  font-size: 1rem;
  color: rgba(0, 0, 0, 0.45);
}

/* =========================================================
   Responsive — Tablet (≤ 768px)
   ========================================================= */
@media (max-width: 768px) {
   :root {
    --fs-hero: clamp(1.8rem, 6vw, 3rem);
    --fs-card-heading: clamp(1.5rem, 2vw + 0.5rem, 2.3rem);
  }

  body {
    padding-top: calc(var(--header-height) - 3rem);
  }

  body:before {
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.6) 0%, transparent 100%);
    opacity: 1;
  }

  .logo-img {
    height: 2.8rem;
  }

  .site-header {
    position: fixed;
    top: 2rem;
    left: 0;
    width: 100%;
    padding: 0.75rem 1.5rem;
    transition: none;
  }

  .site-header.is-scrolled {
    top: 0;
  }

  .nav-left {
    display: none;
  }

  .mobile-menu-toggle {
    display: block;
    margin-left: 1rem
  }

  .hamburger,
  .hamburger::before,
  .hamburger::after {
    background: var(--color-white);
  }

  .mobile-nav {
    display: block;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    background: var(--color-white);
    border-radius: 1rem;
  }

  .nav-open .mobile-nav,
  .mobile-nav[aria-hidden="false"] {
    max-height: 300px;
  }

  .mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 1rem;
  }

  .mobile-nav-list a {
    display: block;
    padding: 0.7rem 0.2rem;
    font-weight: 500;
    font-size: 1rem;
    border-radius: var(--radius-md);
    transition: background 0.15s;
  }

  /* .mobile-nav-list a:hover {
    background: var(--color-light);
  } */

  .mobile-nav-list .btn--primary {
    text-align: center;
    margin-top: 0.5rem;
  }

  .logo {
    position: static;
    transform: none;
  }

  .hero-title {
    margin-left: 0;
    line-height: 1.3;
  }

  .header-inner {
    justify-content: space-between;
  }

  .mobile-menu-toggle {
    flex: 1;
    display: flex;
    justify-content: flex-start;
  }

  .header-actions {
    flex: 1;
    justify-content: flex-end;
  }

  .btn--download-text {
    display: none;
  }

  .btn--download-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
  }

  .card-grid__row,
  .card-grid__row--65-35 {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 36rem;
    padding: clamp(3rem, 8vw, 5rem) clamp(1.5rem, 4vw, 2.5rem) clamp(2.5rem, 5vw, 3.5rem);
    background-image: url('hero-bg3-mobile.jpg');
  }

  .card {
    padding: clamp(2rem, 4.5vw, 4.5rem);
  }

  .footer-inner {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }
}

/* =========================================================
   Responsive — Small mobile (≤ 480px)
   ========================================================= */
@media (max-width: 480px) {
  :root {
    --radius-lg: 1.8rem;
  }

  body {
    padding-inline: 0.5rem;
  }

  .hero {
    margin: 0.5rem auto;
    width: min(100% - 1rem, var(--max-width));
    min-height: 38rem;
  }

  .container {
    width: min(100% - 1rem, var(--max-width));
  }

  .card-heading {
    line-height: 1.2;
    width: 100%;
  }

  .card-heading--dark {
    margin-top: 1rem;
  }

  .card--tall {
    min-height: 390px;
  }

  .card-grid__row .card:nth-child(2) {
    min-height: 310px;
  }

  .card p,
  .card .card-p-full {
    width: 100%;
  }

  .card-label {
    margin-top: 0.2rem;
    line-height: 1.3;
    width: 80%;
  }

  .card-label--green-lighter {
    font-size: 0.85rem;
  }

  .card--green {
    min-height: 320px !important;
  }

  .card--green-bg {
    background: var(--color-white) url('card1-bg-mobile.png') 80% 110% / 20rem no-repeat;
  }

  .card--card2-bg {
    background: var(--color-white) url('card2-bg-mobile.png') center bottom / contain no-repeat;
  }

  .card--card3-bg {
    background: var(--color-white) url('card3-bg-mobile.png') 50% 220% / 120% no-repeat;
  }

  .card--card4-bg {
    background: var(--color-white) url('card4-bg-mobile.png') center 120% / contain no-repeat;
  }

  .card--card6-bg {
    background: var(--color-white) url('card6-bg.png') center / cover no-repeat;
  }

  .link--green {
    margin-bottom: 0.5rem;
  }
}

/* ---------- Scroll reveal animations ---------- */
.card {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.33, 0, 0, 1),
              transform 0.7s cubic-bezier(0.33, 0, 0, 1);
}

.card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger cards within each row */
.card-grid__row .card:nth-child(2) {
  transition-delay: 0.08s;
}

/* Hero slide-in */
.hero {
  opacity: 0;
  transform: translateY(30px);
  animation: heroReveal 0.6s cubic-bezier(0.33, 0, 0, 1) forwards;
}

@keyframes heroReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- Focus styles ---------- */
:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: 2px;
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}