/* =============================================
   RESET & BASE
   ============================================= */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}


@font-face {
  font-family: 'IvyPresto Display';
  src: url('fonts/fonnts.com-Ivy-Presto-Display-Thin.otf') format('opentype');
  font-weight: 100;
  font-style: normal;
  font-display: swap;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'area-normal', 'Inter', 'Helvetica Neue', Arial, sans-serif;
    color: #1a1a1a;
    line-height: 1.6;
    overflow-x: hidden;
    background: #fff;
}

img, svg, video { display: block; max-width: 100%; }
[hidden] { display: none !important; }
a { color: inherit; }
ul, ol { list-style: none; }
button { font-family: inherit; }

/* =============================================
   DESIGN TOKENS
   ============================================= */
:root {
    --gold:         #edad02;
    --gold-dark:    #C8881A;
    --dark:         #1a1a1a;
    --dark-mid:     #2a2a2a;
    --beige:        #e6d9c7;
    --beige-border: #e0d5c4;
    --white:        #ffffff;
    --blue:         #3b82f6;
    --blue-dark:    #2563eb;
    --text-body:    #333333;
    --text-muted:   #777777;
    --max-w:        1180px;
    --header-h:     88px;
    --gray-bg: #f6f1ed;
    --radius:       10px;
    --radius-lg:    8px;
    --shadow-md:    0 4px 24px rgba(0,0,0,.10);
    --shadow-lg:    0 8px 48px rgba(0,0,0,.16);
}

/* =============================================
   TYPOGRAPHY
   ============================================= */
h1, h2 {
  font-family: Georgia, 'Times New Roman', serif;
  font-weight: 100;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

h3, h4, h5, h6 {
    font-family: 'area-normal', 'Inter', Arial, sans-serif;
    line-height: 1.3;
}

/* =============================================
   LAYOUT
   ============================================= */
.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px;
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 30px;
    border-radius: var(--radius);
    font-family: 'area-normal', Arial, sans-serif;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    border: none;
    letter-spacing: .01em;
    transition: background .18s ease, box-shadow .18s ease, transform .1s ease;
    white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn--primary {
    background: var(--blue);
    color: #fff;
}
.btn--primary:hover {
    background: var(--blue-dark);
    box-shadow: 0 6px 20px rgba(59,130,246,.4);
}

.btn--gold {
    background: var(--gold);
    color: #fff;
}
.btn--gold:hover {
    background: var(--gold-dark);
    box-shadow: 0 6px 20px rgba(232,160,48,.4);
}

.btn--outline {
    background: transparent;
    color: var(--blue);
    border: 1.5px solid var(--blue);
}
.btn--outline:hover { background: rgba(59,130,246,.07); }

.btn--outline-light {
    background: transparent;
    color: rgba(255,255,255,.85);
    border: 1.5px solid rgba(255,255,255,.4);
}
.btn--outline-light:hover { background: rgba(255,255,255,.08); }

.btn--ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1.5px solid #ddd;
}
.btn--ghost:hover { background: #f5f5f5; }

.btn--lg  { padding: 16px 40px; font-size: 16px; border-radius: 12px; }
.btn--sm  { padding: 9px 20px; font-size: 13px; border-radius: 8px; }
.btn--block { width: 100%; }
.btn--nav { margin-left: 8px; }

/* =============================================
   CTA HELPERS
   ============================================= */
.cta-group {
    display: flex;
    flex-direction: column;
    align-items: center; /* <-- aqui resolve */
    gap: 8px;
}

.cta-sub {
    font-size: 12px;
    color: var(--text-muted);
}

.cta-sub--light { color: rgba(255,255,255,.6); }

/* =============================================
   SECTION LABELS / TITLES
   ============================================= */
.section-label {
    display: block;
    font-family: 'area-extended', 'area-normal', Arial, sans-serif;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: #764e4e;
    margin-bottom: 14px;
}

.section-title {
    font-family: 'area-extended', 'area-normal', Arial, sans-serif;
    font-size: clamp(22px, 3vw, 30px);
    font-weight: 800;
    letter-spacing: .05em;
    text-transform: uppercase;
    margin-bottom: 48px;
}

/* =============================================
   BULLET LIST (shared)
   ============================================= */
.bullet-list li {
    position: relative;
    padding: 5px 0 5px 22px;
    font-size: 14px;
    color: #444;
    line-height: 1.65;
}
.bullet-list li::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 12px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    border: 1.5px solid var(--dark);
}

/* Checkbox icon list — same visual as steps/guarantee lists */
.cb-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 6px 0;
    font-size: 14px;
    color: #444;
    line-height: 1.6;
}

/* =============================================
   CHECKBOX ICON
   ============================================= */
.cb-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-top: 1px;
}

/* =============================================
   COUNTDOWN CHIP
   ============================================= */
.countdown-chip {
    display: inline-block;
    background: var(--gold);
    color: #111;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 15px;
    font-variant-numeric: tabular-nums;
}
.countdown-chip--inline {
    font-size: 13px;
    padding: 1px 6px;
}

/* =============================================
   SECTION VIDEO (contained)
   ============================================= */
.section-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;

    border-radius: inherit;
}

/* =============================================
   ANNOUNCEMENT BAR
   ============================================= */
.announcement-bar {
    background: #111;
    color: #fff;
    padding: 10px 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    position: sticky;
    top: 0;
    z-index: 200;
}

.announcement-text {
    font-size: 13.5px;
    text-align: center;
    line-height: 1.5;
}

.announcement-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1.5px solid var(--blue);
    color: #fff;
    padding: 7px 18px;
    border-radius: 7px;
    text-decoration: none;
    transition: background .18s;
    min-width: 160px;
    text-align: center;
    flex-shrink: 0;
}
.announcement-btn:hover { background: var(--blue); }

.announcement-btn-main { font-size: 13px; font-weight: 700; }
.announcement-btn-sub  { font-size: 10px; opacity: .7; margin-top: 2px; }

/* =============================================
   HEADER
   ============================================= */
.header {
    position: sticky;
    top: var(--bar-h, 44px);
    z-index: 100;
    background: #fff;
    height: var(--header-h);
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(0,0,0,.07);
    box-shadow: 0 2px 12px rgba(0,0,0,.06);
    transition: box-shadow .2s;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 16px;
}


.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
}

.logo-img {
    height: 50px;
    width: auto;
    display: block;
}

.logo-img--footer {
    height: 40px;
    /* PNG is the negative (light) version — works on dark bg */
}

.nav {
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav-link {
    font-size: 14.5px;
    font-weight: 500;
    color: var(--dark);
    text-decoration: none;
    padding: 6px 11px;
    border-radius: 6px;
    line-height: 1.35;
    text-align: center;
    transition: color .15s, background .15s;
}
.nav-link:hover              { color: var(--gold); background: rgba(232,160,48,.08); }
.nav-link--highlight         { color: var(--gold); }
.nav-link--highlight:hover   { background: rgba(232,160,48,.12); }

.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-shrink: 0;
}
.burger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: transform .3s, opacity .3s;
}
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =============================================
   HERO — full-width video background
   ============================================= */
.hero {
    position: relative;
    overflow: hidden;
    color: #fff;
    padding: 100px 0 120px;
    min-height: calc(100vh - var(--header-h) - 42px);
    display: flex;
    align-items: center;
}

.hero-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.70);
    z-index: 1;
}

.hero-content {
    text-align: center;
}
.hero-inner {
    position: relative;
    z-index: 2;
}

.hero-h1 {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: clamp(36px, 5vw, 62px);
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
    line-height: 1.2;
    letter-spacing: -.01em;
}

.hero-h2 {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: clamp(26px, 3.8vw, 46px);
    font-weight: 400;
    color: rgba(255,255,255,.88);
    margin-bottom: 22px;
    line-height: 1.25;
}
.hero-h2 em {
    font-style: italic;
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-color: rgba(255,255,255,.3);
}

.hero-sub {
    font-size: 17px;
    color: rgba(255,255,255,.78);
    max-width: 540px;
    line-height: 1.75;
    margin-bottom: 36px;
}

/* =============================================
   ABOUT
   ============================================= */
.about {
    background: var(--beige);
    padding: 88px 0;
}

.about-inner {
    display: grid;
    grid-template-columns: 1fr 520px;
    gap: 72px;
    align-items: start;
}

.about-text {
    font-size: 16px;
    color: var(--text-body);
    margin-bottom: 18px;
    line-height: 1.8;
}

.about-heading {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--dark);
    margin: 26px 0 10px;
}

.about-visual {
    position: sticky;
    top: calc(var(--header-h) + 32px);
    display: flex;
    justify-content: center;
}

.about-ipad {
    width: 100%;
    max-width: 520px;
    height: auto;
    border-radius: var(--radius-lg);
    filter: drop-shadow(0 12px 40px rgba(0,0,0,.15));
}

/* =============================================
   CHAPTERS — accordion
   ============================================= */
.chapters {
    background: var(--beige);
    padding: 88px 0;
    border-top: 1px solid var(--beige-border);
}

.chapters-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 56px;
}

.chapters-col { display: flex; flex-direction: column; }

.chapter {
    border-bottom: 1px solid var(--beige-border);
}
.chapter:last-child { border-bottom: none; }

.chapter-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 0;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: 'area-normal', Arial, sans-serif;
    font-size: 15px;
    font-weight: 700;
    color: var(--dark);
    transition: color .15s;
}
.chapter-btn:hover { color: var(--gold); }

.chapter-chevron {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    stroke: currentColor;
    transition: transform .28s ease;
}
.chapter.is-open .chapter-chevron { transform: rotate(180deg); }

.chapter-body {
    overflow: hidden;
    max-height: 0;
    transition: max-height .32s ease;
}
.chapter.is-open .chapter-body { max-height: 400px; }

.chapter-body p {
    padding: 4px 0 18px;
    font-size: 14px;
    color: #555;
    line-height: 1.7;
}

.chapters-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin-top: 56px;
    text-align: center;
}

/* =============================================
   PRICING
   ============================================= */
.pricing {
    padding: 88px 0;
    border-top: 1px solid var(--beige-border);
}

.pricing-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: var(--gray-bg);
    gap: 72px;
    align-items: start;
    padding: 80px 24px;
    max-width: 1200px;
    margin: 0 auto;
    border-radius: 8px;
    overflow: hidden;
}
.price-card {
    background: var(--dark-mid);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 44px 36px;
    text-align: center;
    max-width: 340px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    margin-top: 120px;
    align-items: center;
    gap: 8px;
}

.price-label        { font-size: 15px; font-weight: 600; opacity: .85; }
.price-value        {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 52px;
    color: var(--gold);
    line-height: 1;
    margin: 4px 0;
}
.price-installments { font-size: 13px; opacity: .6; margin-bottom: 16px; }
.price-card .btn    { width: 100%; }

.pricing-video-wrap {
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16/9;
    background: var(--dark-mid);
    box-shadow: var(--shadow-md);
    margin-bottom: 28px;
}

.guarantee-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 11px 0;
    font-size: 16px;
    color: var(--text-body);
    border-bottom: 1px solid var(--beige-border);
    line-height: 1.5;
}
.guarantee-list li:last-child { border-bottom: none; }

/* =============================================
   STUDENTS PROMO
   ============================================= */
.students {
    padding: 88px 0;
    border-top: 1px solid var(--beige-border);
}

.students-inner {
    background: var(--gray-bg);
    padding: 80px 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: center;
    border-radius: 8px;
    overflow: hidden;
}

.discount-text {
    font-family: 'area-normal', Arial, sans-serif;
    font-size: clamp(52px, 7vw, 82px);
    font-weight: 900;
    color: var(--gold);
    line-height: 1.05;
    margin-bottom: 18px;
}

.students-desc {
    font-size: 16px;
    color: var(--text-body);
    line-height: 1.75;
    margin-bottom: 20px;
}

.steps-list { margin-bottom: 28px; }

.steps-list > li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 8px 0;
    font-size: 14px;
    color: #444;
    line-height: 1.6;
}

/* Item with nested sub-list: stacks vertically */
.steps-list > li.step-has-sub {
    display: block;
    padding: 8px 0;
}

.step-row {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 6px;
}

.steps-sub {
    margin-left: 32px; /* align with text, after the checkbox icon */
    margin-top: 4px;
}
.steps-sub li {
    position: relative;
    padding: 3px 0 3px 16px;
    font-size: 13px;
    color: #555;
    line-height: 1.5;
}
.steps-sub li::before {
    content: '';
    position: absolute;
    left: 3px;
    top: 10px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    border: 1.5px solid #888;
}

.students-media { display: flex; justify-content: center; }

.students-video-wrap {
    width: 100%;
    max-width: 100%;
    aspect-ratio: 16/9;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--dark-mid);
    box-shadow: var(--shadow-md);
}

/* =============================================
   PROFESSOR
   ============================================= */
.professor {
    padding: 88px 0;
    border-top: 1px solid var(--beige-border);
}

.professor-inner {
    background: var(--gray-bg);
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 64px;
    padding: 80px 24px;
    align-items: start;
    border-radius: 8px;
    overflow: hidden;
}

.professor-name {
    font-size: clamp(40px, 5vw, 72px);
    color: var(--dark);
    margin-bottom: 24px;
    font-weight: 400;
}

.professor-desc {
    font-size: 16px;
    color: var(--text-body);
    line-height: 1.8;
    margin-bottom: 14px;
}
.professor-desc--question {
    font-style: italic;
    color: var(--dark);
    font-weight: 500;
}
.professor-desc--bold { font-weight: 600; color: var(--dark); }

.professor-media {
    position: sticky;
    top: calc(var(--header-h) + 32px);
}

.professor-photo-wrap {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: visible;
}

.professor-photo {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-lg);
    filter: drop-shadow(0 12px 40px rgba(0,0,0,.18));
}

.professor-video-tag {
    position: absolute;
    bottom: 40px;
    right: -12px;
    background: var(--dark-mid);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 10px 16px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--shadow-md);
    white-space: nowrap;
}

.professor-video-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--dark-mid);
    box-shadow: var(--shadow-md);
    margin-top: 24px;

    isolation: isolate;
}

.professor-video-wrap video {
    position: absolute;
    inset: 0;
}

.prof-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.52);
    border: 2px solid rgba(255, 255, 255, 0.75);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .18s, opacity .3s, transform .18s;
    backdrop-filter: blur(4px);
    z-index: 2;
}
.prof-play-btn:hover {
    background: rgba(0, 0, 0, 0.72);
    transform: translate(-50%, -50%) scale(1.1);
}

.professor-watch-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    text-decoration: none;
    transition: color .15s;
}
.professor-watch-link:hover { color: var(--gold); }

.prof-video-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.72);
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s ease;
    z-index: 999;
}

.professor-video-wrap.is-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    width: min(920px, 92vw);
    aspect-ratio: 16 / 9;
    transform: translate(-50%, -50%);
    z-index: 1000;
    margin-top: 0;
    border-radius: 18px;
    box-shadow: 0 28px 80px rgba(0,0,0,.45);
}

.prof-video-overlay.is-active {
    opacity: 1;
    pointer-events: auto;
}

.prof-video-close {
    display: none;
    position: absolute;
    top: -44px;
    right: 0;
    width: 36px;
    height: 36px;
    border: 0;
    border-radius: 50%;
    background: rgba(255,255,255,.92);
    color: #111;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    z-index: 4;
}

.professor-video-wrap.is-modal .prof-video-close {
    display: flex;
    align-items: center;
    justify-content: center;
}

body.video-modal-open {
    overflow: hidden;
}

.video-modal {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: none;
}

.video-modal.is-active {
    display: block;
}

.video-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.82);
}

.video-modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    width: min(920px, 92vw);
    aspect-ratio: 16 / 9;
    transform: translate(-50%, -50%);
    z-index: 100000;
}

.video-modal-player {
    width: 100%;
    height: 100%;
    display: block;
    border-radius: 18px;
    background: #000;
    box-shadow: 0 30px 90px rgba(0,0,0,.55);
}

.video-modal-close {
    position: absolute;
    top: -46px;
    right: 0;
    width: 38px;
    height: 38px;
    border: 0;
    border-radius: 50%;
    background: #fff;
    color: #111;
    font-size: 30px;
    line-height: 1;
    cursor: pointer;
    z-index: 100001;
}

body.video-modal-open {
    overflow: hidden;
}

/* =============================================
   EBOOK
   ============================================= */
.ebook-section {
    background: var(--beige);
    padding: 88px 0;
    border-top: 1px solid var(--beige-border);
}

.ebook-inner {
    display: grid;
    grid-template-columns: 1fr 480px;
    gap: 72px;
    align-items: start;
}

.ebook-heading {
    font-size: clamp(26px, 3.5vw, 42px);
    color: var(--dark);
    margin-bottom: 20px;
}

.ebook-desc {
    font-size: 16px;
    color: var(--text-body);
    line-height: 1.8;
    margin-bottom: 14px;
}
.ebook-desc--highlight {
    color: var(--dark);
    font-size: 17px;
}

.ebook-list {
    list-style: none;
    margin: 0 0 14px 0;
    padding: 0;
}
.ebook-list li {
    position: relative;
    padding: 4px 0 4px 20px;
    font-size: 14px;
    color: #444;
    line-height: 1.6;
}
.ebook-list li::before {
    content: '';
    position: absolute;
    left: 3px;
    top: 11px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    border: 1.5px solid var(--dark);
}

.ebook-content .cta-group { margin-top: 24px; }

.ebook-media {
    position: sticky;
    top: calc(var(--header-h) + 32px);
}

.ebook-video-wrap {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--dark-mid);
    box-shadow: var(--shadow-lg);
}

/* =============================================
   FAQ
   ============================================= */
.faq {
    background: #fff;
    padding: 88px 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item { border-bottom: 1px solid #e8e8e8; }
.faq-item:first-child { border-top: 1px solid #e8e8e8; }

.faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 0;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    text-align: left;
    transition: color .15s;
}
.faq-q:hover { color: var(--gold); }

.faq-chevron {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    stroke: currentColor;
    transition: transform .28s ease;
}
.faq-item.is-open .faq-chevron { transform: rotate(180deg); }

.faq-a {
    overflow: hidden;
    max-height: 0;
    transition: max-height .32s ease;
}
.faq-item.is-open .faq-a { max-height: 500px; }

.faq-a p {
    padding: 4px 0 22px;
    font-size: 15px;
    color: #555;
    line-height: 1.75;
}

.faq-bullets {
    list-style: none;
    padding: 4px 0 22px;
}
.faq-bullets li {
    position: relative;
    padding: 4px 0 4px 18px;
    font-size: 15px;
    color: #555;
    line-height: 1.65;
}
.faq-bullets li::before {
    content: '';
    position: absolute;
    left: 3px;
    top: 11px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    border: 1.5px solid #888;
}

/* =============================================
   FINAL CTA
   ============================================= */
.final-cta {
    background: #1a1a1a;
    padding: 88px 0;
    color: #fff;
}

.final-cta-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 56px;
    flex-wrap: wrap;
}

.guarantee-seal {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--gold);
    font-size: 14px;
    font-weight: 700;
    text-align: center;
    flex-shrink: 0;
}

.final-cta-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 560px;
    gap: 12px;
}

.final-cta-title {
    font-size: clamp(26px, 3.5vw, 42px);
    color: #fff;
    line-height: 1.2;
}

.final-cta-meta {
    font-size: 13px;
    color: rgba(255,255,255,.5);
}

/* =============================================
   FOOTER
   ============================================= */
.footer-top {
    background: #111;
    padding: 48px 0 32px;
    border-bottom: 1px solid rgba(255,255,255,.06);
}

.footer-top-inner { display: flex; align-items: center; }

.footer-bottom { background: #111; }

.footer-bottom-inner {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 32px;
    padding: 32px 24px;
    flex-wrap: wrap;
}

.footer-legal {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-legal-link {
    font-size: 14px;
    color: rgba(255,255,255,.65);
    text-decoration: none;
    transition: color .15s;
}
.footer-legal-link:hover { color: var(--gold); }

.footer-contact {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 14px;
}

.footer-contact-info {
    font-size: 13px;
    color: rgba(255,255,255,.5);
    text-align: right;
    line-height: 1.7;
}
.footer-contact-info a {
    color: rgba(255,255,255,.7);
    text-decoration: none;
    transition: color .15s;
}
.footer-contact-info a:hover { color: var(--gold); }

.footer-copy-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    padding: 16px 24px 24px;
    border-top: 1px solid rgba(255,255,255,.05);
}

.footer-copy { font-size: 12px; color: rgba(255,255,255,.3); }

.footer-links { display: flex; gap: 20px; }
.footer-links a {
    font-size: 13px;
    color: rgba(255,255,255,.45);
    text-decoration: none;
    transition: color .15s;
}
.footer-links a:hover { color: var(--gold); }

/* =============================================
   COOKIE FLOATING BUTTON
   ============================================= */
.cookie-fab {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 500;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    border-radius: 50%;
    box-shadow: 0 2px 12px rgba(0,0,0,.2);
    transition: transform .2s, box-shadow .2s;
}
.cookie-fab:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 20px rgba(0,0,0,.3);
}
.cookie-fab img { width: 40px; height: 40px; border-radius: 50%; }

/* =============================================
   COOKIE BANNER
   ============================================= */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 490;
    background: var(--dark-mid);
    color: #fff;
    box-shadow: 0 -4px 24px rgba(0,0,0,.2);
    padding: 14px 0;
}
.cookie-banner[hidden] { display: none; }

.cookie-banner-inner {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.cookie-banner-icon { flex-shrink: 0; border-radius: 4px; }

.cookie-banner-inner p { flex: 1; font-size: 13.5px; color: rgba(255,255,255,.85); }

.cookie-banner-link {
    background: none;
    border: none;
    color: var(--gold);
    text-decoration: underline;
    cursor: pointer;
    font-size: 13.5px;
    font-family: inherit;
    padding: 0;
}

.cookie-banner-actions { display: flex; gap: 10px; flex-shrink: 0; }

/* =============================================
   COOKIE / CONTACT OVERLAY
   ============================================= */
.cookie-overlay,
.contact-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.55);
    z-index: 600;
    backdrop-filter: blur(3px);
}
.cookie-overlay[hidden],
.contact-overlay[hidden] { display: none; }

/* =============================================
   COOKIE MODAL
   ============================================= */
.cookie-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 610;
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    width: 90%;
    max-width: 520px;
    box-shadow: 0 24px 80px rgba(0,0,0,.3);
}
.cookie-modal[hidden] { display: none; }

.cookie-modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    color: var(--text-muted);
    border-radius: 6px;
    transition: background .15s;
}
.cookie-modal-close:hover { background: #f5f5f5; }

.cookie-modal-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}
.cookie-modal-header h2 {
    font-family: 'area-normal', Arial, sans-serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
}

.cookie-modal-desc {
    font-size: 14px;
    color: #555;
    line-height: 1.7;
    margin-bottom: 24px;
}
.cookie-modal-desc a { color: var(--blue); }

.cookie-modal-options {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 28px;
}

.cookie-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 16px;
    background: #f8f8f8;
    border-radius: 8px;
    cursor: pointer;
}
.cookie-row div { flex: 1; }
.cookie-row strong { display: block; font-size: 14px; color: var(--dark); margin-bottom: 2px; }
.cookie-row span   { font-size: 12px; color: var(--text-muted); }

.cookie-check {
    width: 20px;
    height: 20px;
    accent-color: var(--blue);
    flex-shrink: 0;
    cursor: pointer;
}
.cookie-check:disabled { cursor: not-allowed; accent-color: #aaa; }

.cookie-modal-footer {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    flex-wrap: wrap;
}

/* =============================================
   CONTACT MODAL
   ============================================= */
.contact-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 610;
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    width: 90%;
    max-width: 440px;
    box-shadow: 0 24px 80px rgba(0,0,0,.3);
}
.contact-modal[hidden] { display: none; }

.contact-modal h2 {
    font-family: 'area-normal', Arial, sans-serif;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
}

.contact-modal p {
    font-size: 14px;
    color: #555;
    margin-bottom: 24px;
}

.contact-options {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.contact-option {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    background: #f5f5f5;
    border-radius: 10px;
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
    transition: background .15s, color .15s;
}
.contact-option:hover { background: var(--beige); color: var(--gold); }

/* =============================================
   RESPONSIVE — TABLET ≤ 1024px
   ============================================= */
@media (max-width: 1024px) {
    .about-inner,
    .professor-inner,
    .ebook-inner {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .about-visual,
    .professor-media,
    .ebook-media {
        position: relative;
        top: auto;
        order: -1;
        justify-content: center;
    }

    .about-ipad { max-width: 400px; }

    .professor-photo { max-width: 400px; margin: 0 auto; }

    .professor-video-tag { right: 0; }

    .ebook-video-wrap { max-width: 480px; margin: 0 auto; }

    .pricing-inner,
    .students-inner {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .price-card { max-width: 100%; }

    .chapters-grid {
        grid-template-columns: 1fr;
        column-gap: 0;
    }
}

/* =============================================
   RESPONSIVE — MOBILE ≤ 768px
   ============================================= */
@media (max-width: 768px) {
    :root { --header-h: 64px; }

    .burger { display: flex; }

    .nav {
        position: fixed;
        top: calc(var(--bar-h, 44px) + var(--header-h));
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: stretch;
        padding: 16px 20px 24px;
        box-shadow: 0 12px 40px rgba(0,0,0,.14);
        transform: translateY(-110%);
        opacity: 0;
        pointer-events: none;
        transition: transform .3s ease, opacity .3s ease;
        z-index: 99;
    }
    .nav.is-open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-link {
        padding: 13px 6px;
        border-bottom: 1px solid #f0f0f0;
        text-align: left;
        line-height: 1.4;
    }
    .btn--nav { margin: 12px 0 0; text-align: center; }

    .hero { padding: 64px 0 80px; min-height: auto; }
    .hero-inner { max-width: 100%; }

    .about,
    .chapters,
    .pricing,
    .students,
    .professor,
    .ebook-section,
    .faq,
    .final-cta { padding: 60px 0; }

    .announcement-bar { flex-direction: column; gap: 10px; padding: 12px 16px; text-align: center; }
    .announcement-btn { min-width: 0; width: 100%; }

    .footer-bottom-inner { flex-direction: column; gap: 24px; }
    .footer-contact { align-items: flex-start; }
    .footer-contact-info { text-align: left; }
    .footer-copy-row { flex-direction: column; text-align: center; }
    .footer-links { justify-content: center; }

    .final-cta-inner { flex-direction: column; gap: 32px; }

    .cookie-banner-inner { flex-direction: column; align-items: flex-start; }
    .cookie-banner-actions { width: 100%; justify-content: flex-end; }

    .students-video-wrap { max-width: 100%; aspect-ratio: 16/9; }
}

/* =============================================
   RESPONSIVE — SMALL ≤ 480px
   ============================================= */
@media (max-width: 480px) {
    .hero-title    { font-size: 32px; }
    .discount-text { font-size: 48px; }
    .section-title { font-size: 20px; }
    .price-value   { font-size: 42px; }
    .professor-name { font-size: 40px; }

    .cookie-modal,
    .contact-modal { padding: 28px 20px; }
    .cookie-modal-footer { flex-direction: column; }
    .cookie-modal-footer .btn { width: 100%; }
}