/* ==========================================================
   IEC TEACHER PORTAL
   Version: 1.0.0
   File: assets/css/styles.css

   Design: Navy / Maroon / White
   Responsive HTML5 Teacher Resource Portal
   ========================================================== */

/* ==========================================================
   1. DESIGN TOKENS
   ========================================================== */

:root {
  --navy: #142747;
  --navy-dark: #0d1b32;
  --navy-light: #213d66;
  --navy-soft: #eaf0f8;

  --maroon: #812d45;
  --maroon-dark: #642136;
  --maroon-light: #a74864;
  --maroon-soft: #f8edf1;

  --white: #ffffff;
  --background: #f6f8fc;
  --surface: #ffffff;
  --surface-alt: #f0f3f9;

  --text: #24334a;
  --text-dark: #142747;
  --muted: #65748a;
  --border: #e2e8f0;

  --success: #19836a;

  --shadow-sm: 0 4px 16px rgba(15, 30, 55, .05);
  --shadow-md: 0 12px 35px rgba(15, 30, 55, .09);
  --shadow-lg: 0 24px 60px rgba(15, 30, 55, .15);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 30px;

  --container: 1200px;

  --transition: 220ms ease;
}

/* ==========================================================
   2. GLOBAL RESET
   ========================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 95px;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--background);
  color: var(--text);
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Arial,
    sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body,
button,
input,
select {
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Arial,
    sans-serif;
}

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

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

img,
svg {
  max-width: 100%;
}

img {
  display: block;
  height: auto;
}

h1,
h2,
h3,
h4,
p {
  overflow-wrap: break-word;
}

h1,
h2,
h3,
h4 {
  line-height: 1.2;
}

:focus-visible {
  outline: 3px solid var(--maroon-light);
  outline-offset: 4px;
}

::selection {
  background: var(--maroon);
  color: var(--white);
}

/* ==========================================================
   3. SHARED LAYOUT
   ========================================================== */

.section-container {
  width: min(
    calc(100% - 48px),
    var(--container)
  );
  margin-inline: auto;
}

.section-padding {
  padding-block: 100px;
}

.section-heading {
  max-width: 780px;
  margin: 0 auto 52px;
  text-align: center;
}

.section-eyebrow {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--maroon);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 2.1px;
  text-transform: uppercase;
}

.section-heading h2,
.approach-content h2 {
  margin: 0 0 20px;
  color: var(--navy);
  font-size: clamp(30px, 3.8vw, 46px);
  font-weight: 800;
  letter-spacing: -1.2px;
}

.section-heading h2 span,
.approach-content h2 span {
  color: var(--maroon);
}

.section-heading p {
  margin: 0 auto 14px;
  color: var(--muted);
  font-size: 17px;
}

/* ==========================================================
   4. HEADER & NAVIGATION
   ========================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header-container {
  width: min(
    calc(100% - 48px),
    var(--container)
  );
  min-height: 82px;
  margin-inline: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  color: var(--navy);
  flex-shrink: 0;
}

.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 51px;
  height: 51px;
  border-radius: 13px;
  background: linear-gradient(
    145deg,
    var(--navy),
    var(--navy-light)
  );
  color: var(--white);
  font-size: 16px;
  font-weight: 900;
  letter-spacing: .5px;
  box-shadow: 0 7px 18px rgba(20, 39, 71, .16);
}

.brand-text {
  display: flex;
  flex-direction: column;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -.6px;
  line-height: 1.2;
}

.brand-text strong {
  font-weight: 900;
}

.brand-text small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 1.6px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 29px;
}

.nav-link {
  position: relative;
  padding-block: 10px;
  color: var(--text);
  font-size: 14px;
  font-weight: 650;
  transition: color var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--maroon);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 3px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--maroon);
  transition: width var(--transition);
}

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

.nav-login {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 43px;
  padding: 11px 19px;
  border-radius: var(--radius-sm);
  background: var(--maroon);
  color: var(--white);
  font-size: 13px;
  font-weight: 750;
  transition:
    background var(--transition),
    transform var(--transition);
}

.nav-login:hover {
  background: var(--maroon-dark);
  transform: translateY(-2px);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 11px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--white);
}

.menu-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  border-radius: 2px;
  background: var(--navy);
}

/* ==========================================================
   5. SHARED BUTTONS
   ========================================================== */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 52px;
  padding: 14px 25px;
  border: 1px solid transparent;
  border-radius: 11px;
  font-size: 14px;
  font-weight: 750;
  line-height: 1.3;
  text-align: center;
  transition:
    background var(--transition),
    color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.button:hover {
  transform: translateY(-3px);
}

.button-primary {
  background: var(--maroon);
  color: var(--white);
  box-shadow: 0 12px 28px rgba(129, 45, 69, .22);
}

.button-primary:hover {
  background: var(--maroon-light);
  box-shadow: 0 16px 34px rgba(129, 45, 69, .3);
}

.button-secondary {
  border-color: rgba(255, 255, 255, .4);
  background: rgba(255, 255, 255, .06);
  color: var(--white);
}

.button-secondary:hover {
  background: rgba(255, 255, 255, .14);
}

.button-white {
  background: var(--white);
  color: var(--maroon);
  box-shadow: 0 12px 30px rgba(0, 0, 0, .1);
}

.button-white:hover {
  background: #f5e9ed;
}

/* ==========================================================
   6. HERO
   ========================================================== */

.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  min-height: 680px;
  display: flex;
  align-items: center;
  background: linear-gradient(
    125deg,
    #0d1b32 0%,
    #142747 50%,
    #223e68 100%
  );
  color: var(--white);
}

.hero-background {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: -1;
}

.hero-glow {
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  filter: blur(75px);
  opacity: .22;
}

.glow-one {
  top: -250px;
  right: -150px;
  background: #bd577a;
}

.glow-two {
  bottom: -350px;
  left: -180px;
  background: #4c79bd;
}

.hero-container {
  width: min(
    calc(100% - 64px),
    1280px
  );
  margin-inline: auto;
  padding-block: 85px;
  display: grid;
  grid-template-columns:
    minmax(0, 1.1fr)
    minmax(0, .9fr);
  align-items: center;
  gap: 70px;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 15px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 100px;
  background: rgba(255, 255, 255, .07);
  color: #e6d7df;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1.2px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #7ed9b1;
  box-shadow: 0 0 0 4px rgba(126, 217, 177, .12);
}

.hero h1 {
  margin: 25px 0;
  font-size: clamp(42px, 5.2vw, 70px);
  font-weight: 850;
  letter-spacing: -2.5px;
  line-height: 1.08;
}

.hero h1 span {
  color: #edb1c2;
}

.hero-description {
  max-width: 590px;
  margin: 0 0 14px;
  color: #e0e8f4;
  font-size: 18px;
  line-height: 1.75;
}

.hero-subdescription {
  max-width: 560px;
  margin: 0;
  color: #aebed4;
  font-size: 15px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  margin-top: 32px;
}

.hero-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 21px;
  margin-top: 34px;
  color: #c8d5e5;
  font-size: 12px;
  font-weight: 600;
}

/* ==========================================================
   7. HERO DASHBOARD PREVIEW
   ========================================================== */

.hero-preview {
  position: relative;
  width: 100%;
  min-width: 0;
  perspective: 1000px;
}

.preview-window {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .15);
  border-radius: 19px;
  background: #f8fafd;
  box-shadow:
    0 35px 90px rgba(0, 0, 0, .28),
    0 0 0 7px rgba(255, 255, 255, .035);
  transform: rotateY(-4deg) rotateX(2deg);
  transition: transform 350ms ease;
}

.preview-window:hover {
  transform: rotateY(0) rotateX(0);
}

.preview-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  min-height: 46px;
  padding: 10px 17px;
  background: #edf1f7;
  border-bottom: 1px solid #dde5ef;
  color: #6c788b;
  font-size: 11px;
  font-weight: 700;
}

.preview-dots {
  display: flex;
  gap: 6px;
}

.preview-dots i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #c5ccd8;
}

.preview-dots i:first-child {
  background: #d67d87;
}

.preview-dots i:nth-child(2) {
  background: #e0bb77;
}

.preview-dots i:nth-child(3) {
  background: #83c7a3;
}

.preview-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
}

.preview-content {
  padding: 30px;
  color: var(--text);
}

.preview-heading h3 {
  margin: 8px 0 4px;
  color: var(--navy);
  font-size: 22px;
  letter-spacing: -.6px;
}

.preview-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.preview-eyebrow {
  color: var(--maroon);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: 1.4px;
}

.preview-search {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 24px 0;
  padding: 12px 15px;
  border: 1px solid #e0e6ef;
  border-radius: 10px;
  background: var(--white);
  color: #8b97a9;
  font-size: 12px;
}

.preview-search span:first-child {
  font-size: 23px;
  line-height: 1;
}

.preview-resource {
  padding: 20px;
  border: 1px solid #e3e9f2;
  border-radius: 13px;
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.preview-resource-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.preview-tag {
  padding: 5px 9px;
  border-radius: 6px;
  background: var(--maroon-soft);
  color: var(--maroon);
  font-size: 10px;
  font-weight: 850;
}

.preview-unit {
  color: #8995a7;
  font-size: 10px;
  font-weight: 750;
}

.preview-resource h4 {
  margin: 15px 0;
  color: var(--navy);
  font-size: 16px;
}

.preview-file {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px;
  margin-top: 10px;
  border: 1px solid #e9edf3;
  border-radius: 9px;
  background: #fbfcfe;
}

.file-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 9px;
  font-size: 11px;
  font-weight: 900;
}

.plan-icon {
  background: #e7eef9;
  color: var(--navy);
}

.ppt-icon {
  background: #f7e7ed;
  color: var(--maroon);
}

.file-details {
  display: flex;
  flex: 1;
  min-width: 0;
  flex-direction: column;
  line-height: 1.35;
}

.file-details strong {
  color: var(--navy);
  font-size: 12px;
}

.file-details small {
  margin-top: 3px;
  color: #8490a2;
  font-size: 10px;
}

.file-arrow {
  color: var(--maroon);
  font-size: 18px;
}

.preview-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  margin-top: 22px;
  color: #68788c;
  font-size: 11px;
  font-weight: 650;
}

.preview-check {
  color: var(--success);
  font-size: 16px;
}

/* ==========================================================
   8. INTRODUCTION / BENEFITS
   ========================================================== */

.intro-section {
  background: var(--white);
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 23px;
}

.benefit-card {
  position: relative;
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border-color var(--transition);
}

.benefit-card:hover {
  transform: translateY(-6px);
  border-color: #e4c2cd;
  box-shadow: var(--shadow-md);
}

.benefit-number {
  margin-bottom: 22px;
  color: var(--maroon);
  font-size: 33px;
  font-weight: 850;
  letter-spacing: -1.5px;
}

.benefit-card h3 {
  margin: 0 0 13px;
  color: var(--navy);
  font-size: 20px;
}

.benefit-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

/* ==========================================================
   9. RESOURCE FEATURES
   ========================================================== */

.resources-section {
  background: var(--background);
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px;
}

.resource-feature-card {
  display: flex;
  flex-direction: column;
  padding: 37px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--shadow-md);
  transition:
    transform var(--transition),
    box-shadow var(--transition);
}

.resource-feature-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--shadow-lg);
}

.resource-feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 65px;
  height: 65px;
  margin-bottom: 27px;
  border-radius: 17px;
  font-size: 22px;
  font-weight: 900;
}

.lesson-icon {
  background: var(--navy-soft);
  color: var(--navy);
}

.presentation-icon {
  background: var(--maroon-soft);
  color: var(--maroon);
}

.resource-category {
  color: var(--maroon);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 1.6px;
}

.resource-feature-content {
  display: flex;
  flex: 1;
  flex-direction: column;
}

.resource-feature-content h3 {
  margin: 11px 0 17px;
  color: var(--navy);
  font-size: 27px;
  letter-spacing: -.7px;
}

.resource-feature-content > p {
  margin: 0 0 21px;
  color: var(--muted);
  font-size: 15px;
}

.resource-list {
  padding: 0;
  margin: 0 0 27px;
  list-style: none;
}

.resource-list li {
  position: relative;
  padding-left: 25px;
  margin-bottom: 11px;
  color: var(--text);
  font-size: 14px;
}

.resource-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 900;
}

.resource-format {
  display: flex;
  gap: 8px;
  margin-top: auto;
}

.resource-format span {
  padding: 5px 12px;
  border-radius: 7px;
  background: var(--surface-alt);
  color: var(--navy);
  font-size: 11px;
  font-weight: 850;
}

/* ==========================================================
   10. WORKFLOW
   ========================================================== */

.workflow-section {
  background: var(--white);
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 35px;
}

.workflow-item {
  position: relative;
  padding: 15px 20px;
  text-align: center;
}

.workflow-circle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: linear-gradient(
    145deg,
    var(--navy),
    var(--navy-light)
  );
  color: var(--white);
  font-size: 25px;
  font-weight: 850;
  box-shadow: 0 13px 27px rgba(20, 39, 71, .15);
}

.workflow-item:nth-child(2) .workflow-circle {
  background: linear-gradient(
    145deg,
    var(--maroon),
    var(--maroon-light)
  );
}

.workflow-item h3 {
  margin: 0 0 12px;
  color: var(--navy);
  font-size: 19px;
}

.workflow-item p {
  max-width: 270px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 14px;
}

/* ==========================================================
   11. INSTRUCTIONAL APPROACH
   ========================================================== */

.approach-section {
  background: #edf2f8;
}

.approach-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: 80px;
}

.approach-content > p {
  margin: 0 0 30px;
  color: var(--muted);
  font-size: 16px;
}

.approach-items {
  display: flex;
  flex-direction: column;
  gap: 23px;
}

.approach-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.approach-marker {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--maroon-soft);
  color: var(--maroon);
  font-weight: 900;
}

.approach-item h4 {
  margin: 0 0 5px;
  color: var(--navy);
  font-size: 17px;
}

.approach-item p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.approach-visual {
  padding: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--shadow-lg);
}

.approach-visual-header {
  margin-bottom: 26px;
  color: var(--maroon);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 1.7px;
  text-align: center;
}

.sequence-step {
  display: flex;
  align-items: center;
  gap: 17px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fafbfd;
}

.sequence-step > span {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 45px;
  height: 45px;
  border-radius: 11px;
  background: var(--navy);
  color: var(--white);
  font-size: 14px;
  font-weight: 850;
}

.sequence-step:nth-of-type(4n) > span {
  background: var(--maroon);
}

.sequence-step div {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.sequence-step strong {
  color: var(--navy);
  font-size: 14px;
  letter-spacing: .7px;
}

.sequence-step small {
  color: var(--muted);
  font-size: 12px;
}

.sequence-connector {
  width: 2px;
  height: 23px;
  margin: 0 auto;
  background: #cbd5e1;
}

/* ==========================================================
   12. ABOUT
   ========================================================== */

.about-section {
  background: var(--white);
}

.about-section .section-heading {
  max-width: 850px;
  margin-bottom: 0;
}

/* ==========================================================
   13. CALL TO ACTION
   ========================================================== */

.cta-section {
  position: relative;
  overflow: hidden;
  padding: 85px 24px;
  background: linear-gradient(
    125deg,
    var(--maroon-dark),
    var(--maroon),
    #9c4560
  );
  color: var(--white);
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -170px;
  right: -100px;
  width: 430px;
  height: 430px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 50%;
  pointer-events: none;
}

.cta-content {
  position: relative;
  max-width: 780px;
  margin-inline: auto;
  text-align: center;
}

.cta-eyebrow {
  display: inline-block;
  margin-bottom: 15px;
  color: #f3ced9;
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 2px;
}

.cta-content h2 {
  margin: 0 0 17px;
  font-size: clamp(31px, 4vw, 48px);
  letter-spacing: -1px;
}

.cta-content p {
  max-width: 610px;
  margin: 0 auto 28px;
  color: #f3e0e6;
  font-size: 16px;
}

/* ==========================================================
   14. FOOTER
   ========================================================== */

.site-footer {
  background: var(--navy-dark);
  color: #c4cfdf;
}

.footer-container {
  width: min(
    calc(100% - 48px),
    var(--container)
  );
  margin-inline: auto;
  padding-block: 70px 55px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 65px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 13px;
  color: var(--white);
  font-size: 19px;
  letter-spacing: -.4px;
}

.footer-brand p {
  max-width: 340px;
  margin-top: 20px;
  color: #9eafc6;
  font-size: 14px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.footer-links h4 {
  margin: 0 0 7px;
  color: var(--white);
  font-size: 15px;
}

.footer-links a,
.footer-links span {
  color: #9eafc6;
  font-size: 13px;
}

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

.footer-links a:hover {
  color: #f0b6c8;
}

.footer-bottom {
  width: min(
    calc(100% - 48px),
    var(--container)
  );
  margin-inline: auto;
  padding-block: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  color: #8ea0b8;
  font-size: 12px;
}

.footer-bottom p {
  margin: 0;
}

/* ==========================================================
   15. SCROLL REVEAL ANIMATIONS
   ========================================================== */

/*
   Elements remain visible by default.

   The animation class is enabled only when JavaScript
   adds .js-animations to the document.
   This prevents content from disappearing if JS fails.
*/

.js-animations .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 650ms ease,
    transform 650ms ease;
}

.js-animations .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================
   16. TABLET RESPONSIVENESS
   ========================================================== */

@media (max-width: 1100px) {

  .main-nav {
    gap: 17px;
  }

  .hero-container {
    gap: 35px;
  }

  .hero h1 {
    font-size: clamp(40px, 5vw, 60px);
  }

  .preview-content {
    padding: 22px;
  }

  .approach-layout {
    gap: 45px;
  }
}

@media (max-width: 900px) {

  .header-container {
    min-height: 76px;
  }

  .menu-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 5px;
    padding: 20px 24px 25px;
    border-bottom: 1px solid var(--border);
    background: var(--white);
    box-shadow: var(--shadow-md);
  }

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

  .nav-link {
    padding: 12px 5px;
  }

  .nav-login {
    margin-top: 8px;
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 55px;
    padding-block: 75px;
  }

  .hero-content {
    max-width: 700px;
    margin-inline: auto;
    text-align: center;
  }

  .hero-description,
  .hero-subdescription {
    margin-inline: auto;
  }

  .hero-buttons,
  .hero-highlights {
    justify-content: center;
  }

  .hero-preview {
    max-width: 580px;
    margin-inline: auto;
  }

  .preview-window {
    transform: none;
  }

  .benefit-grid,
  .workflow-grid {
    gap: 16px;
  }

  .benefit-card {
    padding: 25px;
  }

  .approach-layout {
    grid-template-columns: 1fr;
  }

  .approach-visual {
    max-width: 600px;
    width: 100%;
    margin-inline: auto;
  }

  .footer-container {
    gap: 30px;
  }
}

/* ==========================================================
   17. MOBILE RESPONSIVENESS
   ========================================================== */

@media (max-width: 700px) {

  .section-padding {
    padding-block: 68px;
  }

  .section-container {
    width: min(calc(100% - 36px), var(--container));
  }

  .header-container {
    width: calc(100% - 32px);
  }

  .brand-icon {
    width: 45px;
    height: 45px;
    font-size: 14px;
  }

  .brand-text {
    font-size: 18px;
  }

  .brand-text small {
    font-size: 8px;
  }

  .hero-container {
    width: calc(100% - 36px);
    padding-block: 60px;
  }

  .hero h1 {
    font-size: clamp(38px, 9vw, 54px);
    letter-spacing: -1.6px;
  }

  .hero-description {
    font-size: 16px;
  }

  .hero-subdescription {
    font-size: 14px;
  }

  .hero-badge {
    font-size: 9px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-buttons .button {
    width: 100%;
  }

  .hero-highlights {
    gap: 10px 15px;
    font-size: 11px;
  }

  .benefit-grid,
  .resources-grid,
  .workflow-grid {
    grid-template-columns: 1fr;
  }

  .benefit-card {
    padding: 27px;
  }

  .resource-feature-card {
    padding: 27px;
  }

  .resource-feature-content h3 {
    font-size: 24px;
  }

  .workflow-item {
    padding-block: 10px;
  }

  .approach-visual {
    padding: 23px;
  }

  .footer-container {
    grid-template-columns: 1fr;
    padding-block: 50px;
    gap: 35px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }

  .cta-section {
    padding: 70px 18px;
  }
}

@media (max-width: 420px) {

  .brand-text {
    font-size: 16px;
  }

  .preview-content {
    padding: 15px;
  }

  .preview-resource {
    padding: 14px;
  }

  .preview-file {
    gap: 8px;
    padding: 9px;
  }

  .file-icon {
    width: 35px;
    height: 35px;
  }

  .file-details strong {
    font-size: 11px;
  }

  .file-details small {
    font-size: 9px;
  }

  .hero h1 {
    font-size: 37px;
  }

  .section-heading h2,
  .approach-content h2 {
    font-size: 29px;
  }
}

/* ==========================================================
   18. REDUCED MOTION & ACCESSIBILITY
   ========================================================== */

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }

  .reveal,
  .js-animations .reveal {
    opacity: 1 !important;
    transform: none !important;
  }

  .preview-window {
    transform: none !important;
  }
}

/* ==========================================================
   END OF IEC PORTAL STYLESHEET
   ========================================================== */