/* ==========================================================================
   UniMate Stylesheet (style.css)
   Developed by WesleyConsults for campusiq.app
   ========================================================================== */

/* 1. Design System & CSS Custom Properties */
:root {
  /* Colors */
  --color-primary: #1A2E5A;
  --color-primary-dark: #0F1D3B;
  --color-primary-light: #2A437C;
  --color-accent: #F5A623;
  --color-accent-hover: #D98D10;
  --color-accent-light: #FFF0D4;
  --color-background: #F8F9FC;
  --color-surface: #FFFFFF;
  --color-text: #2C3E50;
  --color-text-muted: #64748B;
  --color-border: #E2E8F0;
  --color-header-bg: rgba(248, 249, 252, 0.85);

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(26, 46, 90, 0.04);
  --shadow-md: 0 10px 25px -5px rgba(26, 46, 90, 0.08), 0 8px 10px -6px rgba(26, 46, 90, 0.08);
  --shadow-lg: 0 20px 40px -15px rgba(26, 46, 90, 0.12);

  /* Typography */
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.7;

  /* Layout */
  --max-width-content: 1140px;
  --max-width-prose: 720px;
  --radius-card: 12px;
  --radius-pill: 9999px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 2. Base Rules */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-background);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  min-block-size: 100dvh;
  display: flex;
  flex-direction: column;
}

/* 3. Typography */
h1, h2, h3, h4 {
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.25;
  margin-block-end: 1rem;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  letter-spacing: -0.01em;
  margin-block-start: 2.5rem;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  margin-block-start: 1.5rem;
}

p {
  margin-block-end: 1.5rem;
  font-weight: 400;
}

p.lead {
  font-size: clamp(1.125rem, 2.5vw, 1.25rem);
  color: var(--color-text-muted);
  line-height: 1.6;
}

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: var(--transition-fast);
}

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

ul, ol {
  margin-block-end: 1.5rem;
  padding-inline-start: 1.5rem;
}

li {
  margin-block-end: 0.5rem;
}

/* 4. Layout Utilities */
.container {
  inline-size: 100%;
  max-inline-size: var(--max-width-content);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.prose-container {
  inline-size: 100%;
  max-inline-size: var(--max-width-prose);
  margin-inline: auto;
  padding-inline: 1.5rem;
  padding-block: 4rem;
}

/* 5. Header Component */
.header-wrapper {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-block-end: 1px solid var(--color-border);
  transition: var(--transition-fast);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  block-size: 4.5rem;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

.logo-img {
  block-size: 2.25rem;
  inline-size: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-primary);
  position: relative;
  padding-block: 0.25rem;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: var(--transition-fast);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--color-primary);
  font-weight: 600;
}

/* Hamburger Menu Button */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 110;
}

.hamburger-line {
  display: block;
  width: 1.5rem;
  height: 2px;
  margin: 5px auto;
  background-color: var(--color-primary);
  transition: var(--transition-normal);
}

/* 6. Footer Component */
.footer-wrapper {
  background-color: var(--color-primary-dark);
  color: #E2E8F0;
  padding-block: 4rem 2rem;
  margin-block-start: auto;
  border-block-start: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-block-end: 3rem;
}

.footer-brand h2 {
  color: #FFFFFF;
  font-size: 1.75rem;
  margin-block-end: 0.75rem;
}

.footer-brand p {
  color: #94A3B8;
  max-inline-size: 320px;
}

.footer-links-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.footer-links-col h3 {
  color: #FFFFFF;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-block-end: 1.25rem;
}

.footer-links-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links-col li {
  margin-block-end: 0.75rem;
}

.footer-links-col a {
  color: #94A3B8;
  font-size: 0.95rem;
}

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

.footer-bottom {
  border-block-start: 1px solid rgba(255, 255, 255, 0.1);
  padding-block-start: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-align: center;
}

.footer-bottom p {
  color: #64748B;
  font-size: 0.875rem;
  margin: 0;
}

.footer-credits {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.footer-logo {
  block-size: 1.25rem;
  inline-size: auto;
  object-fit: contain;
  vertical-align: middle;
}

/* 7. Hero Section */
.hero-section {
  padding-block: 4rem 6rem;
  overflow: hidden;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: 4rem;
}

.hero-content {
  text-align: center;
  max-inline-size: 600px;
  margin-inline: auto;
}

.hero-tag {
  display: inline-block;
  padding: 0.25rem 1rem;
  background-color: var(--color-accent-light);
  color: var(--color-primary-light);
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: var(--radius-pill);
  margin-block-end: 1.25rem;
  border: 1px solid rgba(245, 166, 35, 0.2);
}

.hero-title span {
  color: var(--color-accent);
  position: relative;
  display: inline-block;
}

.hero-description {
  margin-block-end: 2.5rem;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.btn-google-play {
  display: inline-flex;
  align-items: center;
  transition: transform var(--transition-fast);
}

.btn-google-play:hover {
  transform: scale(1.05);
}

.btn-google-play img {
  height: 52px;
  width: auto;
}

.hero-mockup-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-mockup-placeholder {
  inline-size: 280px;
  block-size: 560px;
  background-color: #E2E8F0;
  border: 12px solid #1E293B;
  border-radius: 36px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-weight: 500;
  position: relative;
  overflow: hidden;
}

.hero-mockup-img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
}

/* 8. Features Section */
.features-section {
  padding-block: 6rem;
  background-color: var(--color-surface);
}

.section-header {
  text-align: center;
  max-inline-size: 680px;
  margin-inline: auto;
  margin-block-end: 4rem;
}

.section-header h2 {
  margin-block-end: 1rem;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.feature-card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(26, 46, 90, 0.15);
}

.feature-icon-wrapper {
  inline-size: 3.5rem;
  block-size: 3.5rem;
  background-color: var(--color-accent-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-block-end: 1.5rem;
}

.feature-icon-wrapper svg {
  inline-size: 1.75rem;
  block-size: 1.75rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-block-end: 0.75rem;
  color: var(--color-primary);
}

.feature-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-block-end: 0;
}

/* 9. Universities Section */
.unis-section {
  padding-block: 5rem;
  background-color: var(--color-background);
  border-block: 1px solid var(--color-border);
}

.unis-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.unis-header {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-block-end: 2rem;
  font-weight: 600;
}

.unis-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.85rem;
  max-inline-size: 800px;
}

.uni-chip {
  padding: 0.6rem 1.25rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary-light);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
}

.uni-chip:hover {
  transform: translateY(-2px);
  color: var(--color-primary);
  border-color: rgba(26, 46, 90, 0.2);
}

/* 10. Legal Pages Styles (Privacy & Terms) */
.legal-main {
  background-color: var(--color-surface);
  border-inline: 1px solid var(--color-border);
}

.legal-header {
  border-block-end: 1px solid var(--color-border);
  padding-block-end: 2rem;
  margin-block-end: 2.5rem;
}

.legal-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-block-end: 0.5rem;
}

.legal-meta {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.legal-content h2 {
  font-size: 1.5rem;
  margin-block-start: 3rem;
  margin-block-end: 1rem;
  border-block-end: 2px solid var(--color-accent-light);
  padding-block-end: 0.25rem;
}

.legal-content h3 {
  font-size: 1.15rem;
  margin-block-start: 2rem;
  margin-block-end: 0.75rem;
}

.legal-content p {
  margin-block-end: 1.25rem;
  color: var(--color-text);
}

.legal-content ul {
  list-style-type: disc;
}

.legal-content li {
  margin-block-end: 0.5rem;
}

/* 11. Media Queries (Desktop Layouts > 768px) */
@media (min-width: 768px) {
  /* Navigation */
  .hamburger {
    display: none;
  }

  /* Hero Section */
  .hero-container {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2rem;
  }

  .hero-content {
    text-align: left;
    margin-inline: 0;
  }

  .hero-actions {
    justify-content: flex-start;
    flex-direction: row;
  }

  .hero-mockup-placeholder {
    inline-size: 300px;
    block-size: 600px;
  }

  /* Features */
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem 2rem;
  }

  /* Footer */
  .footer-container {
    grid-template-columns: 1.2fr 1.8fr;
    gap: 4rem;
  }

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

  .footer-bottom {
    flex-direction: row;
    text-align: left;
  }
}

/* Mobile Nav Drawer Style Toggle */
@media (max-width: 767px) {
  .hamburger {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 4.5rem;
    left: 0;
    width: 100%;
    height: calc(100dvh - 4.5rem);
    background-color: var(--color-background);
    flex-direction: column;
    padding-block: 3rem;
    gap: 2.5rem;
    border-block-start: 1px solid var(--color-border);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
  }

  .nav-links.active {
    transform: translateX(0);
  }

  .hamburger.active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* ==========================================================================
   12. Support & Contact Page Styles
   ========================================================================== */
.support-container {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.support-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 4rem auto;
}

.support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}

@media (min-width: 768px) {
  .support-grid {
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
  }
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.support-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.support-card h2 {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
  border-block-end: 2px solid var(--color-accent-light);
  padding-block-end: 0.25rem;
}

.email-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.email-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.email-item:hover {
  border-color: rgba(26, 46, 90, 0.15);
  box-shadow: var(--shadow-sm);
}

.email-item-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  overflow: hidden;
}

.email-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  background-color: var(--color-accent-light);
  color: var(--color-primary);
  border-radius: 6px;
}

.email-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.email-address {
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: none;
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition-fast);
}

.email-address:hover {
  color: var(--color-accent-hover);
}

.btn-copy {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-copy:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
}

.btn-copy.copied {
  background-color: var(--color-accent-light);
  border-color: var(--color-accent);
  color: var(--color-primary-dark);
}

/* Contact Form styling */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.form-group input,
.form-group textarea {
  font-family: var(--font-family);
  font-size: 0.95rem;
  color: var(--color-text);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  width: 100%;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(42, 67, 124, 0.15);
  background-color: var(--color-surface);
}

.btn-submit {
  background-color: var(--color-primary);
  color: #FFFFFF;
  font-family: var(--font-family);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: 8px;
  padding: 1rem 1.5rem;
  cursor: pointer;
  width: 100%;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

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

.btn-submit:active {
  transform: translateY(1px);
}

/* Form success overlay styling */
.form-success-card {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem 2rem;
  animation: fadeIn 0.4s ease-out forwards;
}

.success-icon {
  width: 4rem;
  height: 4rem;
  background-color: #DEF7EC;
  color: #03543F;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.success-icon svg {
  width: 2rem;
  height: 2rem;
}

/* Accordion FAQs */
.faq-accordion {
  margin-top: 4rem;
  border-top: 1px solid var(--color-border);
  padding-top: 4rem;
}

.faq-title {
  text-align: center;
  margin-bottom: 2.5rem;
}

.faq-list {
  max-width: var(--max-width-prose);
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0.5rem;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  transition: color var(--transition-fast);
}

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

.faq-item summary:hover {
  color: var(--color-primary-light);
}

.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-accent);
  transition: transform var(--transition-normal);
  line-height: 1;
}

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

.faq-content {
  padding: 0 0.5rem 1.5rem 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}