/* =============================================
   Everything Should Always Be Easy — Stylesheet
   Warm, approachable, single landing page
   ============================================= */

/* === TOKENS ================================ */
:root {
    --color-bg:          #FBF8F3;
    --color-bg-alt:      #F4EFE6;
    --color-bg-dark:     #261C14;
    --color-bg-card:     #FFFFFF;

    --color-accent:      #B5651D;
    --color-accent-dark: #7B3B00;
    --color-accent-light:#E8C49A;

    --color-text:        #261C14;
    --color-text-mid:    #5C4033;
    --color-text-light:  #9C7B65;

    --color-border:      #E0D4C0;
    --color-border-dark: #C4A882;

    --font-serif:  'Playfair Display', Georgia, serif;
    --font-sans:   'Lato', system-ui, sans-serif;

    --radius-sm:   4px;
    --radius-md:   10px;
    --radius-lg:   20px;

    --shadow-sm:   0 2px 8px rgba(38,28,20,0.07);
    --shadow-md:   0 6px 24px rgba(38,28,20,0.10);
    --shadow-lg:   0 16px 48px rgba(38,28,20,0.14);

    --max-width:   1120px;
    --nav-height:  64px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

ul, ol { list-style: none; }

/* === UTILITIES ============================= */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
}

.visually-hidden {
    position: absolute;
    width: 1px; height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

.centered { text-align: center; }

.section-label {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.section-label.centered { display: block; }

.section-label.light { color: var(--color-accent-light); }

.section-intro {
    font-size: 1.125rem;
    color: var(--color-text-mid);
    max-width: 640px;
    line-height: 1.75;
}

.section-intro.centered { margin: 0 auto; }

/* === BUTTONS =============================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    border-radius: var(--radius-sm);
    padding: 12px 24px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: background-color 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
    white-space: nowrap;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
    background-color: var(--color-accent);
    color: #FFFFFF;
    border-color: var(--color-accent);
}

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

.btn-ghost {
    background-color: transparent;
    color: var(--color-text);
    border-color: var(--color-border-dark);
}

.btn-ghost:hover {
    background-color: var(--color-bg-alt);
    border-color: var(--color-text-mid);
}

.btn-format {
    display: block;
    width: 100%;
    padding: 10px 16px;
    font-size: 0.825rem;
    background: var(--color-bg);
    color: var(--color-text);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    text-align: center;
    font-weight: 700;
    transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}

.btn-format:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: #FFFFFF;
}

/* === NAVIGATION ============================ */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    height: var(--nav-height);
    background-color: transparent;
    transition: background-color 0.3s, box-shadow 0.3s;
}

.nav.scrolled {
    background-color: rgba(251, 248, 243, 0.96);
    backdrop-filter: blur(8px);
    box-shadow: var(--shadow-sm);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.nav-logo {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    font-style: italic;
    color: var(--color-text);
    flex-shrink: 0;
    transition: color 0.2s;
}

.nav-logo:hover { color: var(--color-accent); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--color-text-mid);
    transition: color 0.2s;
}

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

.nav-links .nav-cta {
    padding: 8px 20px;
    background-color: var(--color-accent);
    color: #FFFFFF;
    border-radius: var(--radius-sm);
    transition: background-color 0.2s;
}

.nav-links .nav-cta:hover {
    background-color: var(--color-accent-dark);
    color: #FFFFFF;
}

.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px; height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-hamburger span {
    display: block;
    width: 100%; height: 2px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

/* === HERO ================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: calc(var(--nav-height) + 48px) 32px 64px;
    position: relative;
    background-color: var(--color-bg);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 60% 40%, rgba(181,101,29,0.07) 0%, transparent 65%);
    pointer-events: none;
}

.hero-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 80px;
    align-items: center;
}

/* CSS 3D Book */
.hero-book {
    flex-shrink: 0;
}

.book-wrap {
    display: flex;
    align-items: stretch;
    filter: drop-shadow(var(--shadow-lg));
    transform: perspective(800px) rotateY(-8deg);
    transition: transform 0.4s ease;
}

.book-wrap:hover {
    transform: perspective(800px) rotateY(-4deg);
}

.book-spine {
    width: 32px;
    background: linear-gradient(to right, #1A0E07, #3D2212, #2A1509);
    border-radius: 3px 0 0 3px;
}

.book-front {
    width: 220px;
    min-height: 320px;
    background: linear-gradient(145deg, #2A1509 0%, #3D1F0A 50%, #2A1509 100%);
    border-radius: 0 4px 4px 0;
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
}

.book-front::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(to right, var(--color-accent-light), var(--color-accent), var(--color-accent-light));
}

.book-front::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(to right, var(--color-accent-light), var(--color-accent), var(--color-accent-light));
}

.book-front-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
    justify-content: space-between;
}

.book-front-title {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--color-accent-light);
    line-height: 1.3;
    letter-spacing: 0.01em;
}

.book-rule {
    border: none;
    border-top: 1px solid rgba(232, 196, 154, 0.35);
    margin: 20px 0;
}

.book-front-author {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(232, 196, 154, 0.7);
}

/* Hero Text */
.hero-text {
    max-width: 560px;
}

.hero-eyebrow {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.2rem, 4.5vw, 3.6rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--color-text);
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

.hero-tagline {
    font-size: 1.1rem;
    color: var(--color-text-mid);
    line-height: 1.75;
    margin-bottom: 40px;
    max-width: 480px;
    font-style: italic;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

/* Scroll Hint */
.hero-scroll-hint {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--color-text-light);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    animation: fade-in 1s 1s both;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scroll-pulse 2s infinite;
}

@keyframes scroll-pulse {
    0%, 100% { opacity: 0.4; transform: scaleY(1); }
    50%       { opacity: 1;   transform: scaleY(1.1); }
}

@keyframes fade-in {
    from { opacity: 0; transform: translateX(-50%) translateY(10px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* === BANNER ================================ */
.banner {
    background-color: var(--color-bg-dark);
    padding: 64px 32px;
}

.banner-quote {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-style: italic;
    font-weight: 400;
    color: var(--color-accent-light);
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.4;
}

.banner-quote cite {
    display: block;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-style: normal;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-light);
    margin-top: 20px;
}

/* === ABOUT ================================= */
.about {
    padding: 100px 32px;
    background-color: var(--color-bg);
}

.about-grid {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.about-text h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.6rem, 2.5vw, 2.2rem);
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-text);
    margin-bottom: 28px;
    letter-spacing: -0.01em;
}

.about-text p {
    font-size: 1rem;
    color: var(--color-text-mid);
    line-height: 1.8;
    margin-bottom: 18px;
}

.about-text p:last-child { margin-bottom: 0; }

.about-text strong { color: var(--color-text); font-weight: 700; }

.about-text em { font-style: italic; }

.about-callout {
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: sticky;
    top: 96px;
}

.callout-card {
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--color-accent);
    border-radius: var(--radius-md);
    padding: 28px 28px 28px 24px;
}

.callout-card-alt {
    border-left-color: var(--color-accent-dark);
}

.callout-intro {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.callout-text {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-style: italic;
    color: var(--color-text);
    line-height: 1.7;
}

/* === QUOTES ================================ */
.quotes {
    padding: 80px 32px;
    background-color: var(--color-bg-alt);
    overflow: hidden;
}

.quotes .container {
    position: relative;
}

.quotes-track {
    display: grid;
    grid-template-columns: repeat(6, 100%);
    gap: 24px;
    transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.quote-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 40px 36px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.quote-text {
    font-family: var(--font-serif);
    font-size: 1.175rem;
    font-style: italic;
    color: var(--color-text);
    line-height: 1.65;
}

.quote-text::before { content: '\201C'; }
.quote-text::after  { content: '\201D'; }

.quote-source {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--color-accent);
}

.quotes-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 36px;
}

.quotes-prev,
.quotes-next {
    width: 40px; height: 40px;
    background: none;
    border: 1.5px solid var(--color-border-dark);
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    color: var(--color-text-mid);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

.quotes-prev:hover,
.quotes-next:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: #FFFFFF;
}

.quotes-prev:disabled,
.quotes-next:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.quotes-prev:disabled:hover,
.quotes-next:disabled:hover {
    background: none;
    border-color: var(--color-border-dark);
    color: var(--color-text-mid);
}

.quotes-dots {
    display: flex;
    gap: 8px;
    align-items: center;
}

.quotes-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background-color: var(--color-border-dark);
    border: none;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.2s;
    padding: 0;
}

.quotes-dot.active {
    background-color: var(--color-accent);
    transform: scale(1.3);
}

/* === INSIDE THE BOOK ======================= */
.inside {
    padding: 100px 32px;
    background-color: var(--color-bg);
}

.inside h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.inside .section-intro {
    margin-bottom: 56px;
}

.parts-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    counter-reset: none;
}

.part-item {
    display: grid;
    grid-template-columns: 1fr;
    padding: 40px 0;
    border-bottom: 1px solid var(--color-border);
    transition: background-color 0.2s;
}

.part-item:first-child {
    border-top: 1px solid var(--color-border);
}

.part-header {
    display: flex;
    align-items: baseline;
    gap: 24px;
    margin-bottom: 14px;
}

.part-number {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent-light);
    line-height: 1;
    flex-shrink: 0;
    width: 56px;
    transition: color 0.2s;
}

.part-item:hover .part-number {
    color: var(--color-accent);
}

.part-header h3 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.3;
}

.part-item > p {
    padding-left: 80px;
    color: var(--color-text-mid);
    font-size: 0.975rem;
    line-height: 1.8;
}

/* === FORMATS =============================== */
.formats {
    padding: 100px 32px;
    background-color: var(--color-bg-alt);
}

.formats h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.formats .section-intro {
    margin-bottom: 56px;
}

.formats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.format-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: box-shadow 0.25s, transform 0.25s;
}

.format-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.format-card-featured {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 1px var(--color-accent), var(--shadow-md);
}

.format-card-featured:hover {
    box-shadow: 0 0 0 1px var(--color-accent), var(--shadow-lg);
}

.format-badge {
    position: absolute;
    top: -13px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-accent);
    color: #FFFFFF;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 4px 14px;
    border-radius: 20px;
    white-space: nowrap;
}

.format-icon {
    width: 52px; height: 52px;
    color: var(--color-accent);
    margin-bottom: 4px;
}

.format-icon svg {
    width: 100%; height: 100%;
}

.format-card h3 {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--color-text);
}

.format-card p {
    font-size: 0.95rem;
    color: var(--color-text-mid);
    line-height: 1.7;
    flex-grow: 1;
}

.format-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 8px;
}

.format-card-pdf {
    border-color: var(--color-accent-light);
}

.btn-format-pdf {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: #FFFFFF;
}

.btn-format-pdf:hover {
    background-color: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    color: #FFFFFF;
}

/* === WAITLIST ============================== */
.waitlist {
    padding: 100px 32px;
    background-color: var(--color-bg-dark);
    position: relative;
    overflow: hidden;
}

.waitlist::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(181,101,29,0.18) 0%, transparent 60%);
    pointer-events: none;
}

.waitlist-inner {
    max-width: 560px;
    margin: 0 auto;
    text-align: center;
    position: relative;
}

.waitlist-inner h2 {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.waitlist-inner p {
    font-size: 1rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.7;
    margin-bottom: 36px;
}

.waitlist-form {
    display: flex;
    gap: 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.waitlist-form input {
    flex: 1;
    padding: 16px 20px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    background-color: rgba(255,255,255,0.1);
    border: 1.5px solid rgba(255,255,255,0.2);
    border-right: none;
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    color: #FFFFFF;
    outline: none;
    transition: background-color 0.2s, border-color 0.2s;
    min-width: 0;
}

.waitlist-form input::placeholder {
    color: rgba(255,255,255,0.45);
}

.waitlist-form input:focus {
    background-color: rgba(255,255,255,0.15);
    border-color: var(--color-accent-light);
}

.waitlist-form button {
    padding: 16px 28px;
    background-color: var(--color-accent);
    color: #FFFFFF;
    border: none;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    cursor: pointer;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    transition: background-color 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
}

.waitlist-form button:hover {
    background-color: var(--color-accent-dark);
}

.waitlist-note {
    font-size: 0.8rem !important;
    color: rgba(255,255,255,0.4) !important;
    margin-top: 16px !important;
    margin-bottom: 0 !important;
    transition: color 0.3s;
}

.waitlist-note.success {
    color: #7ECBA0 !important;
    font-weight: 700;
}

/* === FOOTER ================================ */
.footer {
    padding: 56px 32px;
    background-color: var(--color-bg-dark);
    border-top: 1px solid rgba(255,255,255,0.06);
    text-align: center;
}

.footer-title {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-style: italic;
    color: var(--color-accent-light);
    margin-bottom: 6px;
}

.footer-author {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.4);
    margin-bottom: 28px;
    letter-spacing: 0.08em;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 24px;
}

.footer-links a {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.35);
    transition: color 0.2s;
}

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

.footer-copy {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.2);
}

/* === RESPONSIVE ============================ */
@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .about-callout {
        position: static;
    }

    .formats-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
    }

    .hero-inner {
        grid-template-columns: 1fr;
        gap: 48px;
        justify-items: center;
    }

    .hero-text {
        text-align: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-tagline {
        margin: 0 auto 40px;
    }
}

@media (max-width: 680px) {
    :root { --nav-height: 56px; }

    .container { padding: 0 20px; }

    .hero {
        padding: calc(var(--nav-height) + 32px) 20px 56px;
    }

    .nav-inner { padding: 0 20px; }

    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0; right: 0;
        background-color: var(--color-bg);
        flex-direction: column;
        align-items: flex-start;
        padding: 24px 20px 32px;
        gap: 20px;
        box-shadow: var(--shadow-md);
        transform: translateY(-110%);
        transition: transform 0.3s ease;
        z-index: 99;
    }

    .nav-links.open {
        transform: translateY(0);
    }

    .nav-links .nav-cta {
        width: 100%;
        text-align: center;
    }

    .nav-hamburger { display: flex; }

    .banner { padding: 48px 20px; }

    .about,
    .inside,
    .formats,
    .quotes { padding: 72px 20px; }

    .waitlist { padding: 72px 20px; }

    .part-item > p { padding-left: 0; }

    .waitlist-form {
        flex-direction: column;
        border-radius: var(--radius-sm);
    }

    .waitlist-form input {
        border-right: 1.5px solid rgba(255,255,255,0.2);
        border-bottom: none;
        border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    }

    .waitlist-form button {
        border-radius: 0 0 var(--radius-sm) var(--radius-sm);
        padding: 14px;
    }

    .footer-links { flex-wrap: wrap; gap: 16px; }

    .book-wrap {
        transform: perspective(600px) rotateY(-6deg);
    }

    .book-front {
        width: 180px;
        min-height: 260px;
    }
}