/* ============================================================
   Silai Sathi — Styles
   Single-page landing site for on-demand tailoring startup
   ============================================================ */

/* ---------- CSS Custom Properties (Brand Theme) ---------- */
:root {
  /* Brand colors — DO NOT DEVIATE */
  --color-teal-deep: #1F4B4A;
  --color-teal-dark: #163635;
  --color-orange: #D97843;
  --color-gold: #D1A14C;
  --color-cream: #F6F3EC;
  --color-cream-alt: #EFEAE0;
  --color-charcoal: #2B2B2B;
  --color-white: #FFFFFF;

  /* Spacing scale (8px base) */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 14px;

  /* Shadows */
  --shadow-sm: 0 2px 12px rgba(31, 75, 74, 0.06);
  --shadow-md: 0 4px 20px rgba(31, 75, 74, 0.08);
  --shadow-lg: 0 8px 32px rgba(31, 75, 74, 0.10);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.35s ease;

  /* Navbar height */
  --nav-height: 72px;
}

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

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-charcoal);
  background-color: var(--color-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-teal-deep);
}

h1 {
  font-size: 32px;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 28px;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 20px;
  font-weight: 600;
}

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.section {
  padding: var(--space-6) 0;
}

.section--alt {
  background-color: var(--color-cream-alt);
}

.section__title {
  text-align: center;
  margin-bottom: var(--space-5);
}

.section__title h2 {
  margin-bottom: var(--space-1);
}

.section__title p {
  color: var(--color-charcoal);
  opacity: 0.7;
  max-width: 520px;
  margin: 0 auto;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 14px 28px;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 15px;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast),
              transform var(--transition-fast),
              box-shadow var(--transition-fast);
}

.btn:active {
  transform: scale(0.97);
}

.btn--primary {
  background-color: var(--color-teal-deep);
  color: var(--color-cream);
}

.btn--primary:hover {
  background-color: var(--color-teal-dark);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-teal-deep);
  border: 2px solid var(--color-teal-deep);
}

.btn--secondary:hover {
  background-color: var(--color-teal-deep);
  color: var(--color-cream);
}

.btn--white {
  background-color: var(--color-white);
  color: var(--color-teal-deep);
}

.btn--white:hover {
  background-color: var(--color-cream);
  box-shadow: var(--shadow-md);
}

/* WhatsApp icon in buttons */
.btn .wa-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ---------- Text link ---------- */
.text-link {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 15px;
  color: var(--color-orange);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition-fast);
}

.text-link:hover {
  color: var(--color-gold);
}

.text-link .arrow {
  transition: transform var(--transition-fast);
}

.text-link:hover .arrow {
  transform: translateX(4px);
}

/* ---------- Fade-in animation ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================
   A. STICKY NAVBAR
   ========================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background-color: var(--color-cream);
  z-index: 1000;
  transition: box-shadow var(--transition-normal);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.navbar__logo {
  height: 42px;
  width: auto;
}

.navbar__wordmark {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 20px;
  color: var(--color-teal-deep);
  letter-spacing: -0.01em;
}

.navbar__links {
  display: none;
  align-items: center;
  gap: var(--space-4);
}

.navbar__link {
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 14px;
  color: var(--color-charcoal);
  position: relative;
  transition: color var(--transition-fast);
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-orange);
  transition: width var(--transition-fast);
}

.navbar__link:hover {
  color: var(--color-teal-deep);
}

.navbar__link:hover::after {
  width: 100%;
}

.navbar__cta {
  display: none;
}

/* Mobile hamburger */
.navbar__hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-1);
}

.navbar__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-teal-deep);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

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

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

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

/* Mobile menu overlay */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-cream);
  z-index: 999;
  padding: var(--space-5) var(--space-3);
  flex-direction: column;
  gap: var(--space-3);
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu__link {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 18px;
  color: var(--color-teal-deep);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-cream-alt);
}

.mobile-menu__cta {
  margin-top: var(--space-2);
}

/* ==========================================================
   B. HERO SECTION
   ========================================================== */
.hero {
  padding-top: calc(var(--nav-height) + var(--space-6));
  padding-bottom: var(--space-6);
  background-color: var(--color-cream);
  position: relative;
  overflow: hidden;
}

.hero__bg-motif {
  position: absolute;
  right: -80px;
  top: 50%;
  transform: translateY(-50%);
  width: 380px;
  height: 380px;
  opacity: 0.04;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 640px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background-color: var(--color-cream-alt);
  border: 1px solid var(--color-gold);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-gold);
  margin-bottom: var(--space-3);
}

.hero__badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-gold);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  margin-bottom: var(--space-3);
}

.hero__sub {
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-charcoal);
  opacity: 0.8;
  margin-bottom: var(--space-4);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

/* --- Countdown Timer Styles --- */
.countdown {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-bottom: var(--space-5);
  background-color: var(--color-cream-alt);
  padding: 10px 14px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gold);
  width: max-content;
  max-width: 100%;
  box-shadow: var(--shadow-sm);
  animation: pulse-border 3s infinite alternate;
}

@keyframes pulse-border {
  0% { border-color: var(--color-gold); }
  100% { border-color: var(--color-orange); }
}

.countdown__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 46px;
}

.countdown__value {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 24px;
  color: var(--color-teal-deep);
  line-height: 1.1;
}

.countdown__label {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-charcoal);
  opacity: 0.7;
  margin-top: 2px;
}

.countdown__separator {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 20px;
  color: var(--color-gold);
  line-height: 1;
  margin-top: -10px;
}

/* ==========================================================
   C. SOCIAL PROOF BAR
   ========================================================== */
.social-proof {
  background-color: var(--color-cream-alt);
  padding: var(--space-5) 0;
}

.social-proof__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.testimonial-card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.testimonial-card__stars {
  display: flex;
  gap: 3px;
  margin-bottom: var(--space-1);
}

.star-icon {
  width: 18px;
  height: 18px;
  color: var(--color-gold);
}

.testimonial-card__quote {
  font-size: 15px;
  font-style: italic;
  line-height: 1.6;
  margin-bottom: var(--space-2);
  color: var(--color-charcoal);
}

.testimonial-card__author {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 13px;
  color: var(--color-teal-deep);
}

/* ==========================================================
   D. VALUE PROPOSITION
   ========================================================== */
.value-prop {
  padding: var(--space-6) 0;
}

.value-prop__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.value-prop__col {
  padding: var(--space-4);
  border-radius: var(--radius-md);
}

.value-prop__col--before {
  background-color: var(--color-cream-alt);
}

.value-prop__col--after {
  background-color: var(--color-teal-deep);
}

.value-prop__col h3 {
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.value-prop__col--after h3 {
  color: var(--color-cream);
}

.value-prop__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.value-prop__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: 15px;
  line-height: 1.5;
}

.value-prop__item .icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  margin-top: 2px;
}

.value-prop__col--after .value-prop__item {
  color: var(--color-cream);
}

/* ==========================================================
   E. HOW IT WORKS
   ========================================================== */
.how-it-works {
  background-color: var(--color-cream-alt);
  padding: var(--space-6) 0;
}

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  position: relative;
}

.step {
  text-align: center;
  position: relative;
}

.step__number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--color-teal-deep);
  color: var(--color-cream);
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-2);
  position: relative;
  z-index: 1;
}

.step__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-2);
  color: var(--color-orange);
}

.step h3 {
  margin-bottom: var(--space-1);
}

.step p {
  font-size: 14px;
  color: var(--color-charcoal);
  opacity: 0.75;
  max-width: 300px;
  margin: 0 auto;
}

/* Connector line between steps (hidden on mobile, shown on desktop) */
.step__connector {
  display: none;
}

/* ==========================================================
   F. PRICING TABLE
   ========================================================== */
.pricing {
  padding: var(--space-6) 0;
}

.pricing__table-wrapper {
  max-width: 640px;
  margin: 0 auto;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.pricing__table {
  width: 100%;
  border-collapse: collapse;
}

.pricing__table thead {
  background-color: var(--color-teal-deep);
}

.pricing__table th {
  padding: var(--space-2) var(--space-3);
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 14px;
  color: var(--color-cream);
  text-align: left;
}

.pricing__table td {
  padding: var(--space-2) var(--space-3);
  font-size: 15px;
  border-bottom: 1px solid var(--color-cream-alt);
}

.pricing__table tr:last-child td {
  border-bottom: none;
}

.pricing__table tbody tr {
  transition: background-color var(--transition-fast);
}

.pricing__table tbody tr:hover {
  background-color: var(--color-cream);
}

.pricing__table .price {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  color: var(--color-teal-deep);
}

.pricing__note {
  text-align: center;
  margin-top: var(--space-3);
  font-size: 14px;
  color: var(--color-charcoal);
  opacity: 0.7;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
}

/* ==========================================================
   G. GUARANTEE BOX
   ========================================================== */
.guarantee {
  background-color: var(--color-cream-alt);
  padding: var(--space-6) 0;
}

.guarantee__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.guarantee__card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.guarantee__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.guarantee__icon {
  width: 52px;
  height: 52px;
  margin: 0 auto var(--space-2);
  background-color: var(--color-cream);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-teal-deep);
}

.guarantee__icon svg {
  width: 26px;
  height: 26px;
}

.guarantee__card h3 {
  margin-bottom: var(--space-1);
}

.guarantee__card p {
  font-size: 14px;
  color: var(--color-charcoal);
  opacity: 0.75;
}

/* ==========================================================
   H. FAQ ACCORDION
   ========================================================== */
.faq {
  padding: var(--space-6) 0;
}

.faq__list {
  max-width: 720px;
  margin: 0 auto;
}

.faq__item {
  border-bottom: 1px solid var(--color-cream-alt);
}

.faq__question {
  width: 100%;
  text-align: left;
  padding: var(--space-3) 0;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 15px;
  color: var(--color-teal-deep);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  transition: color var(--transition-fast);
}

.faq__question:hover {
  color: var(--color-orange);
}

.faq__chevron {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition-normal);
  color: var(--color-orange);
}

.faq__item.active .faq__chevron {
  transform: rotate(180deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
}

.faq__answer p {
  padding-bottom: var(--space-3);
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-charcoal);
  opacity: 0.8;
}

.faq__item.active .faq__answer {
  max-height: 200px;
}

/* ==========================================================
   I. FINAL CTA BAND
   ========================================================== */
.final-cta {
  background-color: var(--color-teal-deep);
  padding: var(--space-6) 0;
  text-align: center;
}

.final-cta h2 {
  color: var(--color-cream);
  margin-bottom: var(--space-2);
}

.final-cta__sub {
  color: var(--color-cream);
  opacity: 0.7;
  font-size: 14px;
  margin-bottom: var(--space-4);
}

.final-cta .btn--white {
  margin-bottom: var(--space-2);
}

.final-cta__note {
  font-size: 13px;
  color: var(--color-cream);
  opacity: 0.5;
}

/* ==========================================================
   J. FOOTER
   ========================================================== */
.footer {
  background-color: var(--color-teal-dark);
  padding: var(--space-5) 0 var(--space-3);
  text-align: center;
}

.footer__logo {
  height: 36px;
  width: auto;
  margin: 0 auto var(--space-2);
  opacity: 0.3;
}

.footer__tagline {
  font-size: 14px;
  color: var(--color-cream);
  opacity: 0.6;
  margin-bottom: var(--space-3);
}

.footer__socials {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-cream);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.footer__social-link:hover {
  background-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.footer__social-link svg {
  width: 20px;
  height: 20px;
}

.footer__copyright {
  font-size: 13px;
  color: var(--color-cream);
  opacity: 0.4;
}

/* ==========================================================
   RESPONSIVE — MOBILE FIRST
   ========================================================== */

/* 480px+ */
@media (min-width: 480px) {
  h1 {
    font-size: 36px;
  }

  .countdown {
    gap: var(--space-3);
    padding: var(--space-2) var(--space-4);
  }

  .countdown__item {
    min-width: 54px;
  }

  .countdown__value {
    font-size: 28px;
  }

  .countdown__label {
    font-size: 10px;
  }

  .countdown__separator {
    font-size: 24px;
    margin-top: -12px;
  }

  .social-proof__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .guarantee__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 768px+ */
@media (min-width: 768px) {
  h1 {
    font-size: 44px;
  }

  h2 {
    font-size: 32px;
  }

  .navbar__links {
    display: flex;
  }

  .navbar__cta {
    display: inline-flex;
  }

  .navbar__hamburger {
    display: none;
  }

  .hero {
    padding-top: calc(var(--nav-height) + var(--space-7));
    padding-bottom: var(--space-7);
  }

  .hero__bg-motif {
    right: 0;
    width: 440px;
    height: 440px;
  }

  .social-proof__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .value-prop__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
  }

  /* Connector line between steps */
  .step__connector {
    display: block;
    position: absolute;
    top: 28px;
    left: calc(50% + 36px);
    width: calc(100% - 72px);
    height: 2px;
    background: linear-gradient(90deg, var(--color-teal-deep), var(--color-orange));
    opacity: 0.25;
  }

  .step:last-child .step__connector {
    display: none;
  }

  .guarantee__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 1024px+ */
@media (min-width: 1024px) {
  h1 {
    font-size: 52px;
  }

  h2 {
    font-size: 36px;
  }

  .hero__bg-motif {
    right: 40px;
    width: 520px;
    height: 520px;
  }

  .section {
    padding: var(--space-7) 0;
  }
}