/**
 * DirectU website — same design system as app.
 * Warm, minimal, DM Sans. Use across all website pages.
 */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700&display=swap&text=DirectUPI%CE%A0');

/* Logo: DirectUPI — Direct + U (flat base) + Π. Same font, one word. */
.logo-u {
  display: inline-block;
  clip-path: inset(0 0 18% 0);
  vertical-align: baseline;
  margin-right: -0.02em;
}
.logo-pi {
  font-family: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
  color: var(--color-primary);
}

:root {
  --color-bg: #f7f6f3;
  --color-surface: #ffffff;
  --color-border: #e8e6e3;
  --color-text: #1a1a1a;
  --color-text-muted: #6b6b6b;
  --color-primary: #b85c38;
  --color-primary-hover: #9c4d2e;
  --color-primary-active: #853f26;
  --color-success: #059669;
  --color-error: #dc2626;
  --font: 'DM Sans', system-ui, sans-serif;
  /* Spacing: 4px base grid (UX best practice). All values = multiples of 4 for vertical rhythm. */
  --space-xs: 0.25rem;   /* 4px */
  --space-sm: 0.5rem;    /* 8px */
  --space-md: 1rem;      /* 16px */
  --space-lg: 1.5rem;    /* 24px */
  --space-xl: 2rem;      /* 32px */
  --space-2xl: 2.5rem;   /* 40px */
  --space-3xl: 3rem;     /* 48px */
  --space-4xl: 4rem;     /* 64px */
  --space-5xl: 5rem;     /* 80px */
  --space-6xl: 6rem;    /* 96px */
  --space-10xl: 10rem;  /* 160px */
  --space-12xl: 12rem;  /* 192px */
  /* Semantic: section = standard gap between blocks; hero-margin-top = space above hero. */
  --section-gap: var(--space-12xl);
  --section-gap-first: var(--space-12xl);
  --main-padding-y: var(--space-3xl);
  --main-padding-x: var(--space-xl);
  --hero-margin-top: var(--space-4xl);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition: 0.15s ease;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  --max-width: 720px;
}

* {
  box-sizing: border-box;
}

body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Site header */
.site-header {
  padding: var(--space-lg) var(--space-md);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.site-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.site-logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  text-decoration: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.site-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  transition: color var(--transition);
}

.site-nav a:hover {
  color: var(--color-primary);
}

.site-nav .nav-cta {
  color: var(--color-primary);
}

/* Main content — semantic padding for breathing room (desktop) */
.main {
  flex: 1;
  padding: var(--main-padding-y) var(--main-padding-x);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Hero — a little space above; standard section-gap below */
.hero {
  text-align: center;
  margin-top: var(--hero-margin-top);
  margin-bottom: var(--section-gap-first);
}

.hero-tagline {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin: 0 0 var(--space-lg);
  max-width: 20ch;
  margin-left: auto;
  margin-right: auto;
}

.hero-sub {
  font-size: 1rem;
  line-height: 1.55;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-xl);
  max-width: 36ch;
  margin-left: auto;
  margin-right: auto;
}

.hero p:last-of-type {
  margin-top: var(--space-lg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: var(--font);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition), transform var(--transition), color var(--transition);
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--secondary:hover {
  background: #f5f4f2;
  border-color: #d4d2ce;
}

/* Value grid — title above has margin-bottom; small gap before grid */
.value-grid {
  display: grid;
  gap: var(--space-lg);
  margin-top: var(--space-md);
}

.value-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
}

.value-item h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

.value-item p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.value-item__heading {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.value-item__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-text-muted);
}

/* India story (About page) */
.india-story {
  margin-bottom: var(--space-2xl);
}
.india-story__intro {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-md);
}
.india-story__filter {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-xs);
}
.india-story__pill {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font);
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.india-story__pill:hover {
  color: var(--color-text);
  border-color: #d4d2ce;
}
.india-story__pill.is-active {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: rgba(184, 92, 56, 0.06);
}
.india-story__period-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-md);
}
.india-story__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
@media (max-width: 640px) {
  .india-story__cards {
    grid-template-columns: 1fr;
  }
}
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}
.stat-card__value {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}
.stat-card__label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}
.stat-card__note {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin: var(--space-sm) 0 0;
  line-height: 1.4;
}

/* Section titles — consistent top margin for vertical rhythm */
.section-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 var(--space-md);
  color: var(--color-text);
}

/* Section titles: space below only; gap above = previous block margin-bottom (no double margin) */
.container > h2.section-title,
.page-section h2.section-title {
  margin-top: 0;
  margin-bottom: var(--space-lg);
}
.case-study + h2.section-title {
  margin-top: 0;
}

.page-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-sm);
}

.subtitle {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.55;
  margin: 0 0 var(--space-xl);
}

.about-platform-note {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-xl);
  line-height: 1.55;
}

/* Footer */
.site-footer {
  padding: var(--space-2xl) var(--space-md);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  margin-top: auto;
}

.site-footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.site-footer-inner > * + * {
  margin-top: var(--space-md);
}

.site-footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm) var(--space-lg);
}

.site-footer-contact {
  font-size: 0.8125rem;
}

.site-footer-contact a {
  white-space: nowrap;
}

.site-footer-legal {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.site-footer a {
  color: var(--color-primary);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}
@media (max-width: 900px) {
  .pricing-grid {
    grid-template-columns: 1fr;
  }
}

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: 0;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.pricing-card--featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.pricing-badge {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-primary);
}

.pricing-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 var(--space-xs);
}

.pricing-volume {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-sm);
}

.pricing-card .price {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: var(--space-sm) 0 var(--space-md);
}

.price-period {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.pricing-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-md);
}

.pricing-card ul {
  margin: 0 0 var(--space-lg);
  padding-left: 1.25rem;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.pricing-card li {
  margin-bottom: var(--space-xs);
}

.pricing-same {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-lg);
  line-height: 1.45;
}

.pricing-verification-note {
  margin: var(--space-xl) 0;
  padding: var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.pricing-verification-note__title {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 var(--space-sm);
}
.pricing-verification-note p {
  margin: 0 0 var(--space-sm);
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}
.pricing-verification-note p:last-child {
  margin-bottom: 0;
}

.pricing-note {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  text-align: center;
  margin: 0 0 var(--space-lg);
}

/* Login page */
.login-box {
  max-width: 360px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
}

.login-box h1 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 var(--space-md);
}

.login-box .btn {
  width: 100%;
  margin-top: var(--space-md);
}

.login-box .sub {
  text-align: center;
  margin-top: var(--space-lg);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.login-box .sub a {
  color: var(--color-primary);
  text-decoration: none;
}

.login-box .sub a:hover {
  text-decoration: underline;
}

/* Waitlist form — same design system as rest of site */
.waitlist-box {
  max-width: 520px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.waitlist-box .page-title {
  margin-bottom: var(--space-sm);
}

.waitlist-box .subtitle {
  margin-bottom: var(--space-xl);
}

.waitlist-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

.form-group label .required {
  color: var(--color-error);
}

.form-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input::placeholder {
  color: var(--color-text-muted);
  opacity: 0.8;
}

.form-group input:hover {
  border-color: #d4d2ce;
}

.form-group input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(184, 92, 56, 0.12);
}

.form-actions {
  margin-top: var(--space-md);
  padding-top: var(--space-sm);
}

.waitlist-form .btn {
  width: 100%;
  padding: 0.875rem 1.5rem;
  font-size: 1rem;
}

.form-error {
  font-size: 0.875rem;
  color: var(--color-error);
  margin: 0;
  padding: var(--space-sm) 0;
}

.form-error:empty,
.hidden {
  display: none !important;
}

.waitlist-success-card {
  text-align: center;
  padding: var(--space-2xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.waitlist-success-card .text-success {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-success);
  margin: 0 0 var(--space-sm);
}

.waitlist-success-card .subtitle {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

@media (min-width: 600px) {
  .waitlist-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }
}

/* Savings calculator — gap comes from hero margin-bottom; this block adds section-gap below */
.savings-calculator {
  margin-top: 0;
  margin-bottom: var(--section-gap);
}

.savings-calculator .section-title {
  margin-top: 0;
  margin-bottom: var(--space-sm);
}

.savings-calculator .subtitle {
  margin-bottom: var(--space-lg);
}

.calculator-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  margin-top: var(--space-lg);
}

.calculator-card--slider .calculator-slider {
  margin-bottom: var(--space-lg);
}
.calculator-slider label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}
.calculator-slider input[type="range"] {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--color-border);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}
.calculator-slider__ticks {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-xs);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  padding: 0 2px;
}
.calculator-slider__ticks span {
  flex: 0 0 auto;
}
.calculator-slider input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.calculator-slider input[type="range"]::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.calculator-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.calculator-inputs label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.calculator-inputs input {
  width: 100%;
  padding: 0.625rem 0.75rem;
  font-size: 1rem;
  font-family: var(--font);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.calculator-inputs input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.calculator-result {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.calculator-savings {
  font-size: 1.125rem;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

.calculator-savings strong {
  color: var(--color-success);
}

.calculator-detail {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-lg);
}

.calculator-result .btn {
  margin-top: var(--space-sm);
}

@media (max-width: 480px) {
  .calculator-inputs {
    grid-template-columns: 1fr;
  }
}

/* Case study — gap from previous block; add section-gap below */
.case-study {
  margin-top: 0;
  margin-bottom: var(--section-gap);
}

.case-study .section-title {
  margin-top: 0;
  margin-bottom: var(--space-lg);
}

.case-study-card {
  background: linear-gradient(135deg, #faf8f6 0%, var(--color-surface) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-primary);
  margin-top: 0;
}

.case-study-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin: 0 0 var(--space-sm);
}

.case-study-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 var(--space-md);
  color: var(--color-text);
}

.case-study-quote {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-lg);
  font-style: italic;
}

.case-study-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
  font-size: 0.875rem;
  color: var(--color-text);
}

.case-study-stats span {
  display: inline-flex;
  align-items: center;
}

.case-study-business {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* Single-page sections */
.page-section {
  display: none;
}
.page-section.is-active {
  display: block;
}
.site-nav [data-section].is-active {
  color: var(--color-primary);
  font-weight: 600;
}

/* ========== MOBILE (max-width: 768px): same rhythm, slightly tighter semantic gaps ========== */
@media (max-width: 768px) {
  :root {
    --section-gap: var(--space-10xl);     /* 160px between sections */
    --section-gap-first: var(--space-10xl);
    --main-padding-y: var(--space-2xl);
    --main-padding-x: var(--space-md);
    --hero-margin-top: var(--space-3xl);
  }

  .main {
    padding: var(--main-padding-y) var(--main-padding-x);
  }

  /* Hero: no min-height; single gap below via section-gap-first */
  #section-home.is-active .hero {
    min-height: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    margin-bottom: var(--section-gap-first);
    padding: var(--space-md) 0 var(--space-lg);
  }
  #section-home.is-active .hero-tagline {
    margin-bottom: var(--space-md);
  }
  #section-home.is-active .hero-sub {
    margin-bottom: var(--space-lg);
  }
  #section-home.is-active .hero p:last-of-type {
    margin-top: var(--space-lg);
    margin-bottom: 0;
  }

  /* Blocks use global section-gap; no overrides needed */
  #section-home .savings-calculator > *:first-child,
  #section-home .case-study > *:first-child {
    margin-top: 0;
  }
  #section-home h2.section-title {
    margin-bottom: var(--space-md);
  }
  #section-home .value-grid {
    margin-top: var(--space-md);
  }
  #section-home .value-grid + p {
    margin-top: var(--space-xl);
  }

  .value-item {
    margin-bottom: var(--space-md);
  }
  .value-item:last-child {
    margin-bottom: 0;
  }

  #section-pricing.is-active .page-title,
  #section-about.is-active .page-title {
    margin-top: var(--space-sm);
  }
  #section-pricing.is-active .pricing-grid,
  #section-about.is-active .india-story {
    margin-top: var(--space-lg);
  }
  .india-story__cards {
    gap: var(--space-md);
  }
  .stat-card {
    padding: var(--space-lg);
  }
}