/* =============================================================================
   Download / Lead Magnet Page
   Extends main.css — all design tokens (--color-*, --spacing-*, etc.) available
   ============================================================================= */

/* Hero layout */
.download-hero {
    padding: 10rem 0 6rem;
    position: relative;
}

.download-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

/* Cover image */
.download-cover-image {
    width: 100%;
    max-width: 440px;
    height: auto;
    border-radius: var(--border-radius-xl);
    box-shadow:
        0 4px 6px -1px rgba(0, 0, 0, 0.05),
        0 20px 60px -10px rgba(26, 54, 93, 0.2);
    display: block;
    margin: 0 auto;
}

/* Badge */
.download-content .hero-badge {
    margin-bottom: var(--spacing-md);
}

/* Title & description */
.download-title {
    margin-bottom: var(--spacing-md);
}

.download-desc {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-width: 500px;
    margin-bottom: var(--spacing-xl);
}

/* =============================================================================
   Form
   ============================================================================= */
.download-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 480px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
}

.form-group input {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text);
    background: white;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    box-sizing: border-box;
}

.form-group input::placeholder {
    color: var(--color-text-muted);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-navy);
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.08);
}

.form-group input.invalid {
    border-color: var(--color-error);
}

.form-group input.invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.08);
}

.field-error {
    font-size: 0.8rem;
    color: var(--color-error);
    min-height: 1.1em; /* reserve space to avoid layout shift */
    display: block;
}

/* Submit button full-width */
.btn-block {
    width: 100%;
    justify-content: center;
}

/* Spinner animation */
@keyframes download-spin {
    to { transform: rotate(360deg); }
}

.download-spinner {
    animation: download-spin 0.8s linear infinite;
    display: inline-block;
    vertical-align: middle;
}

.form-privacy {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-align: center;
    margin: 0;
}

/* =============================================================================
   Success state
   ============================================================================= */
.form-success {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: rgba(16, 185, 129, 0.06);
    border: 1px solid rgba(16, 185, 129, 0.25);
    border-radius: var(--border-radius-lg);
    max-width: 480px;
}

.success-icon {
    width: 48px;
    height: 48px;
    background: rgba(16, 185, 129, 0.12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-success);
}

.form-success h3 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--color-text);
}

.form-success p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* =============================================================================
   Error banner
   ============================================================================= */
.form-error-banner {
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(239, 68, 68, 0.06);
    border: 1px solid rgba(239, 68, 68, 0.25);
    border-radius: var(--border-radius);
    color: var(--color-error);
    font-size: 0.9rem;
    max-width: 480px;
}

/* =============================================================================
   Invalid product error page
   ============================================================================= */
.download-error {
    padding: 14rem 0 6rem;
    text-align: center;
}

.download-error-msg {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
}

.download-error-msg a {
    color: var(--color-navy);
    text-decoration: underline;
}

/* =============================================================================
   Upsell hook (replaces cover image on form success)
   ============================================================================= */
.download-upsell {
    background:
        linear-gradient(150deg, rgba(248, 113, 113, 0.08) 0%, transparent 55%),
        #111827;
    border-top: 3px solid var(--color-coral);
    border-radius: var(--border-radius-xl);
    box-shadow:
        0 0 0 1px rgba(248, 113, 113, 0.12),
        0 25px 60px -15px rgba(0, 0, 0, 0.4);
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.45s ease, transform 0.45s ease;
    max-width: 440px;
    margin: 0 auto;
}

.download-upsell.upsell-visible {
    opacity: 1;
    transform: translateY(0);
}

.upsell-eyebrow {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-coral);
    margin: 0;
}

.upsell-heading {
    font-size: clamp(1.3rem, 2.5vw, 1.75rem);
    color: #ffffff;
    line-height: 1.3;
    margin: 0;
}

.upsell-heading em {
    font-family: var(--font-display);
    font-style: italic;
    color: var(--color-coral-light);
}

.upsell-sub {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    margin: 0;
}

.upsell-cta {
    align-self: flex-start;
    background: #ffffff !important;
    color: var(--color-navy) !important;
}

.upsell-cta:hover {
    background: var(--color-bg-muted) !important;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px -10px rgba(255, 255, 255, 0.15) !important;
}

/* =============================================================================
   Responsive
   ============================================================================= */
@media (max-width: 1024px) {
    .download-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .download-visual {
        order: -1; /* image above content on tablet/mobile */
    }

    .download-cover-image {
        max-width: 360px;
    }
}

@media (max-width: 768px) {
    .download-hero {
        padding: 8rem 0 4rem;
    }

    .upsell-cta {
        align-self: stretch;
        justify-content: center;
    }
}