/* ================================================
   Bundle Sydney — Seller Landing Page
   Mobile-first. No frameworks. Pure CSS.
   ================================================ */

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

:root {
    --white: #FFFFFF;
    --charcoal: #1A1A2E;
    --charcoal-deep: #16213E;
    --grey-light: #E8E8E8;
    --grey-surface: #F5F5F7;
    --coral: #E07A5F;
    --coral-hover: #C96A51;
    --font-stack: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', Arial, sans-serif;
}

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

body {
    font-family: var(--font-stack);
    color: var(--charcoal);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---- Header ---- */

.header {
    padding: 20px 0;
    border-bottom: 1px solid var(--grey-light);
}

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

.nav {
    display: flex;
    gap: 20px;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: #888;
    text-decoration: none;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--charcoal);
}

.nav-link.active {
    color: var(--charcoal);
    font-weight: 600;
}

.logo {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--charcoal);
}

.logo span {
    color: var(--coral);
}

.tagline {
    font-size: 12px;
    color: #888;
    letter-spacing: 0.3px;
}

/* ---- Hero ---- */

.hero {
    position: relative;
    padding: 64px 0 80px;
    overflow: hidden;
    text-align: center;
}

.hero-gradient {
    position: absolute;
    bottom: -60px;
    left: 50%;
    transform: translateX(-50%);
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(224, 122, 95, 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

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

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    margin-bottom: 28px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--coral);
    background: rgba(224, 122, 95, 0.1);
    border-radius: 100px;
}

.hero-headline {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.8px;
    color: var(--charcoal);
    margin-bottom: 20px;
}

.hero-subhead {
    font-size: 16px;
    line-height: 1.6;
    color: #555;
    margin-bottom: 36px;
    max-width: 440px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: inline-block;
    padding: 16px 40px;
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    background: var(--coral);
    border: none;
    border-radius: 12px;
    text-decoration: none;
    transition: background 0.2s ease, transform 0.15s ease;
}

.hero-cta:hover {
    background: var(--coral-hover);
}

.hero-cta:active {
    transform: scale(0.97);
}

/* ---- How It Works ---- */

.how-it-works {
    padding: 72px 0;
    background: var(--grey-surface);
}

.section-heading {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.4px;
    text-align: center;
    margin-bottom: 48px;
    color: var(--charcoal);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    font-size: 14px;
    font-weight: 700;
    color: var(--coral);
    background: rgba(224, 122, 95, 0.1);
    border-radius: 50%;
    margin-bottom: 12px;
}

.step-icon {
    font-size: 40px;
    margin-bottom: 12px;
    line-height: 1;
}

.step-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--charcoal);
}

.step-desc {
    font-size: 15px;
    color: #666;
    max-width: 280px;
    margin: 0 auto;
    line-height: 1.5;
}

/* ---- Trust ---- */

.trust {
    padding: 56px 0;
    border-top: 1px solid var(--grey-light);
    border-bottom: 1px solid var(--grey-light);
}

.trust-grid {
    display: flex;
    flex-direction: column;
    gap: 24px;
    align-items: center;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.trust-icon {
    font-size: 24px;
    line-height: 1;
}

.trust-text {
    font-size: 15px;
    font-weight: 600;
    color: var(--charcoal);
}

/* ---- Signup ---- */

.signup {
    padding: 72px 0 80px;
    background: var(--white);
}

.signup-subhead {
    text-align: center;
    font-size: 15px;
    color: #666;
    margin-top: -36px;
    margin-bottom: 40px;
}

.form-intro {
    font-size: 15px;
    color: #555;
    text-align: center;
    margin-bottom: 24px;
    line-height: 1.5;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--charcoal);
    letter-spacing: 0.2px;
}

.form-group input {
    padding: 14px 16px;
    font-size: 16px; /* prevents iOS zoom */
    font-family: var(--font-stack);
    color: var(--charcoal);
    background: var(--grey-surface);
    border: 1.5px solid var(--grey-light);
    border-radius: 10px;
    outline: none;
    transition: border-color 0.2s ease;
    -webkit-appearance: none;
    appearance: none;
}

.form-group input:focus {
    border-color: var(--coral);
    background: var(--white);
}

.form-group input::placeholder {
    color: #aaa;
}

.form-group input.invalid {
    border-color: #D94040;
}

.btn-submit {
    padding: 16px;
    font-size: 16px;
    font-weight: 600;
    font-family: var(--font-stack);
    color: var(--white);
    background: var(--coral);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.15s ease, opacity 0.2s ease;
    margin-top: 8px;
    -webkit-appearance: none;
}

.btn-submit:hover {
    background: var(--coral-hover);
}

.btn-submit:active {
    transform: scale(0.97);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-fine-print {
    font-size: 12px;
    color: #999;
    text-align: center;
    line-height: 1.5;
}

.form-error {
    font-size: 13px;
    color: #D94040;
    text-align: center;
    min-height: 20px;
}

/* ---- Success Message ---- */

.success-message {
    display: none;
    text-align: center;
    padding: 40px 0 0;
}

.success-message.visible {
    display: block;
    animation: fadeIn 0.4s ease;
}

.success-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.success-message h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--charcoal);
    margin-bottom: 8px;
}

.success-message p {
    font-size: 15px;
    color: #666;
    line-height: 1.5;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---- Share ---- */

.share-nudge {
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--grey-light);
}

.share-prompt {
    font-size: 15px;
    font-weight: 600;
    color: var(--charcoal);
    margin-bottom: 12px;
}

.share-section {
    padding: 48px 0;
    text-align: center;
    background: var(--grey-surface);
}

.share-heading {
    font-size: 20px;
    font-weight: 700;
    color: var(--charcoal);
    margin-bottom: 6px;
}

.share-subtext {
    font-size: 15px;
    color: #666;
    margin-bottom: 20px;
}

.btn-share {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font-stack);
    color: var(--coral);
    background: rgba(224, 122, 95, 0.1);
    border: 1.5px solid var(--coral);
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.15s ease;
    -webkit-appearance: none;
}

.btn-share::before {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23E07A5F' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 12v8a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2v-8'/%3E%3Cpolyline points='16 6 12 2 8 6'/%3E%3Cline x1='12' y1='2' x2='12' y2='15'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
}

.btn-share:hover {
    background: rgba(224, 122, 95, 0.18);
}

.btn-share:active {
    transform: scale(0.97);
}

.share-copied {
    font-size: 13px;
    color: var(--coral);
    font-weight: 600;
    margin-top: 8px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.share-copied.visible {
    opacity: 1;
}

/* ---- Footer ---- */

.footer {
    padding: 40px 0;
    text-align: center;
    background: var(--charcoal);
    color: rgba(255, 255, 255, 0.5);
}

.footer-copy {
    font-size: 13px;
    margin-bottom: 4px;
}

.footer-tagline {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.35);
}

/* ---- Bundle Explainer ---- */

.bundle-explainer {
    padding: 72px 0;
    background: var(--white);
}

.explainer-subhead {
    font-size: 15px;
    color: #666;
    text-align: center;
    margin-top: -36px;
    margin-bottom: 36px;
    line-height: 1.5;
}

.bundle-card {
    background: var(--white);
    border: 1px solid var(--grey-light);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
    max-width: 360px;
    margin: 0 auto;
}

.bundle-card-header {
    background: var(--grey-surface);
    padding: 0;
}

.bundle-room-visual {
    width: 100%;
    line-height: 0;
}

.room-svg {
    width: 100%;
    height: auto;
    display: block;
}

.bundle-card-body {
    padding: 20px 24px 24px;
}

.bundle-card-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--coral);
    background: rgba(224, 122, 95, 0.1);
    padding: 4px 10px;
    border-radius: 100px;
    margin-bottom: 8px;
}

.bundle-card-location {
    font-size: 13px;
    color: #999;
    margin-bottom: 16px;
}

.bundle-items {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.bundle-items li {
    font-size: 14px;
    color: var(--charcoal);
    display: flex;
    align-items: center;
    gap: 8px;
}

.bundle-check {
    color: var(--coral);
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}

.bundle-card-footer {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--grey-light);
}

.bundle-price {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.8px;
    color: var(--charcoal);
}

.bundle-label {
    font-size: 13px;
    color: #999;
}

.explainer-footnote {
    font-size: 14px;
    color: #888;
    text-align: center;
    margin-top: 24px;
    line-height: 1.5;
}

/* ================================================
   Desktop (nice-to-have)
   ================================================ */

@media (min-width: 768px) {
    .container {
        max-width: 720px;
    }

    .hero {
        padding: 100px 0 120px;
    }

    .hero-headline {
        font-size: 48px;
        letter-spacing: -1.2px;
    }

    .hero-subhead {
        font-size: 18px;
    }

    .steps {
        flex-direction: row;
        gap: 32px;
    }

    .step {
        flex: 1;
    }

    .trust-grid {
        flex-direction: row;
        justify-content: center;
        gap: 48px;
    }

    .form {
        max-width: 440px;
        margin: 0 auto;
    }
}

@media (min-width: 1024px) {
    .container {
        max-width: 860px;
    }

    .hero-headline {
        font-size: 56px;
    }
}