/* ============================================
   Nobiraa Landing — Stylesheet
   Visual Language: Ink + Indigo + Cloud
   ============================================ */

/* --- Font Faces --- */
/* Vazirmatn 400 */
@font-face {
  font-family: 'Vazirmatn';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/vazirmatn-arabic-400-normal.woff2') format('woff2');
  unicode-range: U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0897-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC,U+102E0-102FB,U+10E60-10E7E,U+10EC2-10EC4,U+10EFC-10EFF,U+1EE00-1EE03,U+1EE05-1EE1F,U+1EE21-1EE22,U+1EE24,U+1EE27,U+1EE29-1EE32,U+1EE34-1EE37,U+1EE39,U+1EE3B,U+1EE42,U+1EE47,U+1EE49,U+1EE4B,U+1EE4D-1EE4F,U+1EE51-1EE52,U+1EE54,U+1EE57,U+1EE59,U+1EE5B,U+1EE5D,U+1EE5F,U+1EE61-1EE62,U+1EE64,U+1EE67-1EE6A,U+1EE6C-1EE72,U+1EE74-1EE77,U+1EE79-1EE7C,U+1EE7E,U+1EE80-1EE89,U+1EE8B-1EE9B,U+1EEA1-1EEA3,U+1EEA5-1EEA9,U+1EEAB-1EEBB,U+1EEF0-1EEF1;
}

@font-face {
  font-family: 'Vazirmatn';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/vazirmatn-latin-ext-400-normal.woff2') format('woff2');
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}

@font-face {
  font-family: 'Vazirmatn';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/vazirmatn-latin-400-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}

/* Vazirmatn 600 */
@font-face {
  font-family: 'Vazirmatn';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/vazirmatn-arabic-600-normal.woff2') format('woff2');
  unicode-range: U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0897-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC,U+102E0-102FB,U+10E60-10E7E,U+10EC2-10EC4,U+10EFC-10EFF,U+1EE00-1EE03,U+1EE05-1EE1F,U+1EE21-1EE22,U+1EE24,U+1EE27,U+1EE29-1EE32,U+1EE34-1EE37,U+1EE39,U+1EE3B,U+1EE42,U+1EE47,U+1EE49,U+1EE4B,U+1EE4D-1EE4F,U+1EE51-1EE52,U+1EE54,U+1EE57,U+1EE59,U+1EE5B,U+1EE5D,U+1EE5F,U+1EE61-1EE62,U+1EE64,U+1EE67-1EE6A,U+1EE6C-1EE72,U+1EE74-1EE77,U+1EE79-1EE7C,U+1EE7E,U+1EE80-1EE89,U+1EE8B-1EE9B,U+1EEA1-1EEA3,U+1EEA5-1EEA9,U+1EEAB-1EEBB,U+1EEF0-1EEF1;
}

@font-face {
  font-family: 'Vazirmatn';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/vazirmatn-latin-ext-600-normal.woff2') format('woff2');
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}

@font-face {
  font-family: 'Vazirmatn';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/vazirmatn-latin-600-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}

/* Vazirmatn 700 */
@font-face {
  font-family: 'Vazirmatn';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/vazirmatn-arabic-700-normal.woff2') format('woff2');
  unicode-range: U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0897-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC,U+102E0-102FB,U+10E60-10E7E,U+10EC2-10EC4,U+10EFC-10EFF,U+1EE00-1EE03,U+1EE05-1EE1F,U+1EE21-1EE22,U+1EE24,U+1EE27,U+1EE29-1EE32,U+1EE34-1EE37,U+1EE39,U+1EE3B,U+1EE42,U+1EE47,U+1EE49,U+1EE4B,U+1EE4D-1EE4F,U+1EE51-1EE52,U+1EE54,U+1EE57,U+1EE59,U+1EE5B,U+1EE5D,U+1EE5F,U+1EE61-1EE62,U+1EE64,U+1EE67-1EE6A,U+1EE6C-1EE72,U+1EE74-1EE77,U+1EE79-1EE7C,U+1EE7E,U+1EE80-1EE89,U+1EE8B-1EE9B,U+1EEA1-1EEA3,U+1EEA5-1EEA9,U+1EEAB-1EEBB,U+1EEF0-1EEF1;
}

@font-face {
  font-family: 'Vazirmatn';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/vazirmatn-latin-ext-700-normal.woff2') format('woff2');
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}

@font-face {
  font-family: 'Vazirmatn';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/vazirmatn-latin-700-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}

/* --- Custom Properties --- */
:root {
  --ink: #171821;
  --muted-ink: #667085;
  --subtle-text: #98A2B3;
  --indigo: #5B55F7;
  --indigo-hover: #4D46E5;
  --indigo-soft: #EFEEFF;
  --bg: #F7F8FC;
  --surface: #FFFFFF;
  --surface-subtle: #F1F3F8;
  --border: #E5E7EF;

  --font: 'Vazirmatn', system-ui, -apple-system, 'Segoe UI', Tahoma, sans-serif;
  --radius: 10px;
  --radius-sm: 6px;
  --max-w: 1200px;
  --header-h: 64px;
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body,
button,
input,
textarea,
select {
  font-family: var(--font);
}

body {
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.7;
  color: var(--ink);
  background-color: var(--bg);
  direction: rtl;
  text-align: right;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--indigo);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--indigo-hover);
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--indigo);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
}

h1 {
  font-size: 1.75rem;
}

h2 {
  font-size: 1.375rem;
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
}

p {
  color: var(--muted-ink);
  line-height: 1.8;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem;
}

section {
  padding: 3.5rem 0;
}

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

.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-header p {
  max-width: 600px;
  margin: 0.5rem auto 0;
  color: var(--muted-ink);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), box-shadow var(--transition);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--indigo);
  color: var(--surface);
}

.btn-primary:hover {
  background-color: var(--indigo-hover);
  color: var(--surface);
}

.btn-secondary {
  background-color: var(--indigo-soft);
  color: var(--indigo);
}

.btn-secondary:hover {
  background-color: #E4E2FF;
  color: var(--indigo-hover);
}

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(247, 248, 252, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  height: var(--header-h);
  transition: border-color var(--transition), background-color var(--transition);
}

.site-header.scrolled {
  border-bottom-color: var(--border);
  background-color: rgba(255, 255, 255, 0.96);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.125rem;
}

.brand img {
  width: 32px;
  height: 32px;
}

.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  color: var(--ink);
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
}

.nav-toggle .icon-close {
  display: none;
}

.nav-toggle[aria-expanded="true"] .icon-menu {
  display: none;
}

.nav-toggle[aria-expanded="true"] .icon-close {
  display: block;
}

.main-nav {
  display: none;
  position: absolute;
  top: var(--header-h);
  left: 0;
  right: 0;
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.25rem;
  box-shadow: 0 4px 12px rgba(23, 24, 33, 0.08);
}

.main-nav.open {
  display: block;
}

.main-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.main-nav a {
  display: block;
  padding: 0.625rem 0.75rem;
  color: var(--muted-ink);
  font-size: 0.9375rem;
  font-weight: 400;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background-color var(--transition);
}

.main-nav a:hover {
  color: var(--ink);
  background-color: var(--surface-subtle);
}

/* --- Hero --- */
.hero {
  padding: 4rem 0 3.5rem;
  text-align: center;
}

.hero-mark {
  width: 72px;
  height: 72px;
  margin: 0 auto 2rem;
}

.hero h1 {
  max-width: 680px;
  margin: 0 auto 1.25rem;
}

.hero-text {
  max-width: 560px;
  margin: 0 auto 2rem;
  font-size: 1.0625rem;
  color: var(--muted-ink);
  line-height: 1.9;
}

/* --- What Nobiraa Does --- */
.what-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 640px;
  margin: 0 auto;
}

.what-item {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  padding: 0.75rem 0;
}

.what-item-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--indigo-soft);
  border-radius: 50%;
  margin-top: 0.125rem;
}

.what-item-icon svg {
  width: 14px;
  height: 14px;
  color: var(--indigo);
}

.what-item p {
  font-size: 1rem;
  color: var(--ink);
  line-height: 1.7;
}

/* --- Capabilities Grid --- */
.capabilities-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.capability-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: box-shadow var(--transition);
}

.capability-card:hover {
  box-shadow: 0 2px 12px rgba(23, 24, 33, 0.06);
}

.capability-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--indigo-soft);
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  color: var(--indigo);
}

.capability-icon svg {
  width: 20px;
  height: 20px;
}

.capability-card h3 {
  margin-bottom: 0.5rem;
  color: var(--ink);
}

.capability-card p {
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* --- Who It Is For --- */
.audience-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  max-width: 560px;
  margin: 0 auto;
}

.audience-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.audience-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--indigo);
  flex-shrink: 0;
}

.audience-item span {
  font-size: 1rem;
  color: var(--ink);
  font-weight: 400;
}

/* --- How It Works --- */
.steps {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 560px;
  margin: 0 auto;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

.step-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--indigo);
  color: var(--surface);
  font-weight: 700;
  font-size: 1.125rem;
  border-radius: 50%;
}

.step-content h3 {
  margin-bottom: 0.375rem;
}

.step-content p {
  font-size: 0.9375rem;
}

/* --- Transparency --- */
.transparency {
  background-color: var(--indigo-soft);
}

.transparency-content {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.transparency-content h2 {
  color: var(--ink);
}

.transparency-content p {
  color: var(--muted-ink);
  font-size: 1rem;
  line-height: 1.9;
  margin-top: 1rem;
}

.transparency-content p + p {
  margin-top: 0.75rem;
}

/* --- About --- */
.about-content {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.about-content p {
  font-size: 1.0625rem;
  line-height: 1.9;
}

/* --- FAQ --- */
.faq-list {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-item[open] {
  border-color: var(--indigo-soft);
}

.faq-item summary {
  padding: 1rem 1.25rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: color var(--transition);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '';
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%23667085' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  transition: transform var(--transition);
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 1.25rem 1rem;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--muted-ink);
}

/* --- Footer --- */
.site-footer {
  background-color: var(--ink);
  color: var(--surface);
  padding: 2.5rem 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-brand img {
  width: 28px;
  height: 28px;
  filter: brightness(0) invert(1);
}

.footer-brand span {
  font-weight: 700;
  font-size: 1rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.5rem;
}

.footer-links a {
  color: var(--subtle-text);
  font-size: 0.875rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--surface);
}

.footer-meta {
  font-size: 0.8125rem;
  color: var(--subtle-text);
}

/* --- Content Pages (Privacy / Terms) --- */
.page-hero {
  padding: 3rem 0 2rem;
  text-align: center;
}

.page-hero h1 {
  font-size: 1.5rem;
}

.page-content {
  padding-bottom: 3.5rem;
}

.page-content .container {
  max-width: 720px;
}

.content-block {
  margin-bottom: 2rem;
}

.content-block h2 {
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.content-block p {
  font-size: 0.9375rem;
  line-height: 1.9;
}

.content-block ul {
  list-style: disc;
  padding-right: 1.5rem;
  margin-top: 0.5rem;
}

.content-block li {
  font-size: 0.9375rem;
  color: var(--muted-ink);
  line-height: 1.9;
  margin-bottom: 0.25rem;
}

/* --- Tablet (768px+) --- */
@media (min-width: 768px) {
  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.625rem;
  }

  section {
    padding: 4.5rem 0;
  }

  .container {
    padding: 0 2rem;
  }

  .hero {
    padding: 5rem 0 4.5rem;
  }

  .hero-mark {
    width: 80px;
    height: 80px;
  }

  .hero-text {
    font-size: 1.125rem;
  }

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

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

  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: right;
  }
}

/* --- Desktop (1024px+) --- */
@media (min-width: 1024px) {
  h1 {
    font-size: 2.75rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  section {
    padding: 5.5rem 0;
  }

  .nav-toggle {
    display: none;
  }

  .main-nav {
    display: block;
    position: static;
    background: none;
    border: none;
    padding: 0;
    box-shadow: none;
  }

  .main-nav ul {
    flex-direction: row;
    gap: 0.25rem;
  }

  .main-nav a {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
  }

  .hero {
    padding: 6rem 0 5rem;
  }

  .hero-mark {
    width: 88px;
    height: 88px;
    margin-bottom: 2.5rem;
  }

  .capabilities-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .audience-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: 640px;
  }

  .steps {
    gap: 2.5rem;
  }
}

/* --- Print --- */
@media print {
  .site-header,
  .nav-toggle,
  .btn {
    display: none;
  }

  body {
    color: #000;
    background: #fff;
  }

  section {
    padding: 1.5rem 0;
  }
}