/* ═══════════════════════════════════════════
   InviteAI — Homepage Styles
   ═══════════════════════════════════════════ */

/* ═══════ HEADER NAV (homepage only) ═══════ */
.header-nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.header-nav a {
    font-size: 0.78rem;
    color: var(--header-text);
    text-decoration: none;
    opacity: 0.6;
    transition: opacity var(--dur) var(--ease);
    font-weight: 400;
}

.header-nav a:hover { opacity: 1; }

.header-nav .btn {
    opacity: 1;
    font-size: 0.75rem;
    height: 34px;
    padding: 0 1rem;
}

/* ═══════ SHARED SECTION ═══════ */
.section-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 5rem 2rem;
    text-align: center;
}

.section-eyebrow {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--accent);
    margin-bottom: 0.65rem;
}

.section-inner > h2 {
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    margin-bottom: 0.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-inner > p {
    max-width: 480px;
    margin: 0 auto;
    font-size: 0.92rem;
    line-height: 1.6;
}

/* ═══════ HERO ═══════ */
.hero {
    background: linear-gradient(165deg, #FDF6EE 0%, #F6EDE3 35%, #F0E4D6 70%, #EDE0D2 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(184,92,60,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 5rem 2rem 3rem;
    text-align: center;
    position: relative;
}

.hero-eyebrow {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--accent);
    margin-bottom: 1rem;
    padding: 0.35rem 1rem;
    background: rgba(184,92,60,0.08);
    border-radius: 999px;
}

.hero h1 {
    font-size: clamp(2.2rem, 6vw, 3.4rem);
    font-weight: 500;
    line-height: 1.12;
    letter-spacing: -0.03em;
    margin-bottom: 1.15rem;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 1.05rem;
    line-height: 1.65;
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto 2rem;
}

.hero-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3.5rem;
}

.btn-lg {
    height: 48px;
    padding: 0 2rem;
    font-size: 0.92rem;
    font-weight: 600;
}

.btn-sm {
    height: 34px;
    padding: 0 1rem;
    font-size: 0.75rem;
}

/* ── Hero Preview Cards ── */
.hero-preview {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
    perspective: 800px;
}

.preview-card {
    width: 190px;
    border-radius: var(--r-md);
    overflow: hidden;
    box-shadow: var(--shadow-5);
    position: relative;
    transition: transform 0.4s var(--ease);
}

.preview-card img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
}

.preview-card:hover {
    transform: translateY(-4px);
}

.preview-1 {
    transform: rotate(-4deg) translateY(8px);
}
.preview-1:hover { transform: rotate(-4deg) translateY(4px); }

.preview-2 {
    transform: translateY(0);
    z-index: 1;
}

.preview-3 {
    transform: rotate(4deg) translateY(8px);
}
.preview-3:hover { transform: rotate(4deg) translateY(4px); }

/* ═══════ FEATURES ═══════ */
.features {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
    text-align: left;
}

.feature-card {
    padding: 1.5rem 1.25rem;
    background: var(--bg);
    border-radius: var(--r-md);
    border: 1px solid var(--border);
    transition: all var(--dur-md) var(--ease);
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-3);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--r-sm);
    background: var(--accent-soft);
    display: grid;
    place-items: center;
    margin-bottom: 1rem;
    color: var(--accent);
}

.feature-card h3 {
    font-family: var(--font-body);
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
}

.feature-card p {
    font-size: 0.8rem;
    line-height: 1.55;
    color: var(--text-tertiary);
}

/* ═══════ HOW IT WORKS ═══════ */
.how-it-works { background: var(--bg); }

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    margin-top: 2.5rem;
    text-align: center;
    position: relative;
}

.how-step {
    position: relative;
    padding: 0 1rem;
}

.how-step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 700;
    display: grid;
    place-items: center;
    margin: 0 auto 1rem;
    box-shadow: 0 2px 8px rgba(184,92,60,0.25);
    position: relative;
    z-index: 2;
}

.how-step-connector {
    position: absolute;
    top: 20px;
    left: calc(50% + 24px);
    right: calc(-50% + 24px);
    height: 2px;
    background: linear-gradient(90deg, var(--accent), rgba(184,92,60,0.15));
    z-index: 1;
}

.how-step:last-child .how-step-connector { display: none; }

.how-step h3 {
    font-family: var(--font-body);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.how-step p {
    font-size: 0.78rem;
    line-height: 1.55;
    color: var(--text-tertiary);
}

/* ═══════ PRICING ═══════ */
.pricing {
    background: var(--surface);
    border-top: 1px solid var(--border);
}

.pricing-subtitle {
    margin-bottom: 2rem !important;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin-top: 1rem;
    text-align: left;
}

.pricing-card {
    padding: 1.75rem 1.5rem;
    background: var(--bg);
    border: 1.5px solid var(--border);
    border-radius: var(--r-md);
    transition: all var(--dur-md) var(--ease);
}

.pricing-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-3);
}

.pricing-card.featured {
    border-color: rgba(184,92,60,0.25);
    background: linear-gradient(160deg, #FFFEF9, #FFF4E8);
    box-shadow: var(--shadow-2);
}

.pricing-card h3 {
    font-family: var(--font-body);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.pricing-amount {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.pricing-card p {
    font-size: 0.78rem;
    line-height: 1.55;
    color: var(--text-tertiary);
}

/* ═══════ FOOTER CTA ═══════ */
.footer-cta {
    background: linear-gradient(165deg, #1C120A, #2E1E14);
    color: var(--header-text);
}

.footer-cta .section-inner {
    padding: 4rem 2rem;
}

.footer-cta h2 {
    color: var(--header-text);
    font-size: clamp(1.5rem, 4vw, 2.2rem);
    margin-bottom: 0.4rem;
}

.footer-cta p {
    color: rgba(232,223,212,0.6);
    margin-bottom: 1.5rem;
}

.footer-cta .btn-primary {
    box-shadow: 0 2px 12px rgba(184,92,60,0.4);
}

/* ═══════ RESPONSIVE ═══════ */
@media (max-width: 768px) {
    .header-nav a:not(.btn) { display: none; }

    .hero-inner { padding: 3.5rem 1.25rem 2rem; }
    .hero-subtitle { font-size: 0.92rem; }

    .hero-preview { gap: 0.75rem; }
    .preview-card { width: 140px; }

    .features-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
    .how-step-connector { display: none; }
    .pricing-grid { grid-template-columns: 1fr; }

    .section-inner { padding: 3.5rem 1.25rem; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 1.8rem; }

    .hero-preview { gap: 0.5rem; }
    .preview-card { width: 100px; }

    .features-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; gap: 1.5rem; }

    .btn-lg { height: 44px; padding: 0 1.5rem; font-size: 0.85rem; }
}