/* ============================================
   advertise.astegni.com — home page + auth modal styles
   Uses CSS variables from ../css/root/theme.css where possible.
   ============================================ */

:root {
    --adv-primary: var(--accent-primary, #f59e0b);
    --adv-primary-hover: var(--accent-primary-hover, #d97706);
    --adv-text: var(--text-primary, #111827);
    --adv-text-muted: var(--text-secondary, #6b7280);
    --adv-bg: var(--bg-primary, #ffffff);
    --adv-bg-alt: var(--bg-secondary, #f9fafb);
    --adv-border: var(--border-color, #e5e7eb);
    --adv-card-bg: var(--card-bg, #ffffff);
    --adv-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    --adv-shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--adv-text);
    background: var(--adv-bg);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--adv-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* ---------- Nav ---------- */

.adv-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--adv-border);
}
.adv-nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}
.adv-logo {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--adv-text);
}
.adv-logo-main {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}
.adv-logo-tag {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--adv-text-muted);
}
.adv-nav-links {
    display: flex;
    gap: 1.75rem;
}
.adv-nav-links a {
    color: var(--adv-text);
    font-weight: 500;
    font-size: 0.95rem;
}
.adv-nav-actions {
    display: flex;
    gap: 0.5rem;
}

/* ---------- Buttons ---------- */

.adv-btn {
    appearance: none;
    border: none;
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    padding: 0.65rem 1.2rem;
    border-radius: 8px;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: transform 0.1s ease, background 0.15s ease, box-shadow 0.15s ease;
}
.adv-btn:active { transform: translateY(1px); }
.adv-btn-primary {
    background: var(--adv-primary);
    color: #fff;
}
.adv-btn-primary:hover { background: var(--adv-primary-hover); }
.adv-btn-ghost {
    background: transparent;
    color: var(--adv-text);
    border: 1px solid var(--adv-border);
}
.adv-btn-ghost:hover { background: var(--adv-bg-alt); }
.adv-btn-lg {
    padding: 0.9rem 1.7rem;
    font-size: 1.05rem;
}
.adv-btn-full {
    width: 100%;
    justify-content: center;
}
.adv-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.adv-hero {
    position: relative;
    padding: 5rem 1.5rem 6rem;
    overflow: hidden;
}
.adv-hero-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 30%, rgba(245, 158, 11, 0.12), transparent 60%),
                radial-gradient(circle at 80% 70%, rgba(79, 70, 229, 0.10), transparent 60%);
    pointer-events: none;
    z-index: 0;
}
.adv-hero-content {
    position: relative;
    z-index: 1;
    max-width: 880px;
    margin: 0 auto;
    text-align: center;
}
.adv-hero-eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--adv-primary);
    margin: 0 0 1rem;
}
.adv-hero-title {
    font-size: clamp(2rem, 4.5vw, 3.6rem);
    line-height: 1.1;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0 0 1.5rem;
}
.adv-hero-sub {
    font-size: clamp(1.05rem, 1.6vw, 1.2rem);
    color: var(--adv-text-muted);
    max-width: 680px;
    margin: 0 auto 2rem;
}
.adv-hero-ctas {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}
.adv-hero-note {
    font-size: 0.9rem;
    color: var(--adv-text-muted);
    margin: 0;
}

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

.adv-trust {
    background: var(--adv-bg-alt);
    border-top: 1px solid var(--adv-border);
    border-bottom: 1px solid var(--adv-border);
    padding: 2.5rem 1.5rem;
}
.adv-trust-inner {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}
.adv-trust-label {
    display: block;
    font-size: 0.85rem;
    color: var(--adv-text-muted);
    margin-bottom: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.adv-trust-logos {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    flex-wrap: wrap;
}
.adv-trust-placeholder {
    color: var(--adv-text-muted);
    font-weight: 600;
    opacity: 0.5;
    border: 1px dashed var(--adv-border);
    padding: 0.5rem 1rem;
    border-radius: 6px;
}

/* ---------- Generic section ---------- */

.adv-section {
    padding: 5rem 1.5rem;
}
.adv-section-alt {
    background: var(--adv-bg-alt);
}
.adv-section-inner {
    max-width: 1100px;
    margin: 0 auto;
}
.adv-section-title {
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    text-align: center;
    margin: 0 0 0.75rem;
}
.adv-section-sub {
    font-size: 1.1rem;
    color: var(--adv-text-muted);
    text-align: center;
    max-width: 600px;
    margin: 0 auto 3rem;
}
.adv-section-note {
    text-align: center;
    color: var(--adv-text-muted);
    font-size: 0.9rem;
    margin-top: 2rem;
}

/* ---------- Stats ---------- */

.adv-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}
.adv-stat {
    text-align: center;
}
.adv-stat-num {
    font-size: clamp(2rem, 3.5vw, 2.8rem);
    font-weight: 800;
    color: var(--adv-primary);
    letter-spacing: -0.02em;
}
.adv-stat-label {
    color: var(--adv-text-muted);
    margin-top: 0.3rem;
    font-size: 0.95rem;
}

/* ---------- Cards ---------- */

.adv-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}
.adv-card {
    background: var(--adv-card-bg);
    border: 1px solid var(--adv-border);
    border-radius: 14px;
    padding: 1.75rem;
    box-shadow: var(--adv-shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.adv-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--adv-shadow-lg);
}
.adv-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    background: rgba(245, 158, 11, 0.12);
    color: var(--adv-primary);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}
.adv-card h3 {
    font-size: 1.15rem;
    margin: 0 0 0.5rem;
    font-weight: 700;
}
.adv-card p {
    margin: 0;
    color: var(--adv-text-muted);
    font-size: 0.95rem;
}

/* ---------- Steps ---------- */

.adv-steps {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: step;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}
.adv-steps li {
    background: var(--adv-card-bg);
    border: 1px solid var(--adv-border);
    border-radius: 14px;
    padding: 1.5rem;
    position: relative;
}
.adv-step-num {
    display: inline-grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--adv-primary);
    color: #fff;
    font-weight: 700;
    margin-bottom: 0.75rem;
}
.adv-steps h3 {
    font-size: 1.05rem;
    margin: 0 0 0.4rem;
    font-weight: 700;
}
.adv-steps p {
    margin: 0;
    color: var(--adv-text-muted);
    font-size: 0.93rem;
}

/* ---------- CTA band ---------- */

.adv-cta-band {
    background: linear-gradient(135deg, var(--adv-primary), #ea580c);
    color: #fff;
    padding: 4rem 1.5rem;
    text-align: center;
}
.adv-cta-inner {
    max-width: 800px;
    margin: 0 auto;
}
.adv-cta-band h2 {
    font-size: clamp(1.5rem, 2.8vw, 2.2rem);
    font-weight: 800;
    margin: 0 0 1.5rem;
    color: #fff;
}
.adv-cta-band .adv-btn-primary {
    background: #fff;
    color: var(--adv-primary);
}
.adv-cta-band .adv-btn-primary:hover {
    background: var(--adv-bg-alt);
}

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

.adv-footer {
    background: #111827;
    color: #d1d5db;
    padding: 3rem 1.5rem 1.5rem;
}
.adv-footer-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-items: start;
}
.adv-footer-brand .adv-logo-main { color: #fff; }
.adv-footer-brand .adv-logo-tag { color: #9ca3af; }
.adv-footer-brand p {
    margin-top: 0.5rem;
    color: #9ca3af;
}
.adv-footer-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}
.adv-footer-links a {
    color: #d1d5db;
}
.adv-footer-copy {
    max-width: 1100px;
    margin: 2rem auto 0;
    padding-top: 1.5rem;
    border-top: 1px solid #1f2937;
    color: #9ca3af;
    font-size: 0.85rem;
    text-align: center;
}

/* ============================================
   AUTH MODALS (login / signup)
   ============================================ */

.adv-modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    animation: advFadeIn 0.18s ease-out;
}
.adv-modal.hidden { display: none; }
.adv-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(17, 24, 39, 0.55);
    backdrop-filter: blur(2px);
    cursor: pointer;
}
.adv-modal-content {
    position: relative;
    background: var(--adv-card-bg);
    border-radius: 16px;
    box-shadow: var(--adv-shadow-lg);
    max-width: 460px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 2rem;
    z-index: 1;
}
.adv-modal-close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--adv-text-muted);
    font-size: 1.1rem;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: grid;
    place-items: center;
}
.adv-modal-close:hover {
    background: var(--adv-bg-alt);
    color: var(--adv-text);
}
.adv-modal-header {
    margin-bottom: 1.5rem;
}
.adv-modal-header h2 {
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0 0 0.35rem;
}
.adv-modal-header p {
    color: var(--adv-text-muted);
    margin: 0;
    font-size: 0.95rem;
}

@keyframes advFadeIn {
    from { opacity: 0; transform: scale(0.98); }
    to   { opacity: 1; transform: scale(1); }
}

/* ---------- Forms ---------- */

.adv-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.adv-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}
.adv-form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}
.adv-form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--adv-text);
}
.adv-form-optional {
    font-weight: 400;
    color: var(--adv-text-muted);
    font-size: 0.8rem;
}
.adv-form input[type=text],
.adv-form input[type=email],
.adv-form input[type=password] {
    appearance: none;
    border: 1px solid var(--adv-border);
    border-radius: 8px;
    padding: 0.7rem 0.9rem;
    font-size: 0.95rem;
    font-family: inherit;
    background: #fff;
    color: var(--adv-text);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.adv-form input:focus {
    outline: none;
    border-color: var(--adv-primary);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.18);
}
.adv-password-input {
    position: relative;
}
.adv-password-input input {
    width: 100%;
    padding-right: 2.6rem;
}
.adv-password-toggle {
    position: absolute;
    top: 50%;
    right: 0.5rem;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--adv-text-muted);
    cursor: pointer;
    padding: 0.4rem;
    border-radius: 4px;
}
.adv-password-toggle:hover { color: var(--adv-text); }

.adv-form-hint {
    font-size: 0.82rem;
    color: var(--adv-text-muted);
    margin: 0;
}
.adv-form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
    font-size: 0.9rem;
    color: var(--adv-text-muted);
}
.adv-form-checkbox input {
    margin-top: 0.18rem;
}
.adv-form-error {
    color: #b91c1c;
    background: #fef2f2;
    border: 1px solid #fecaca;
    padding: 0.6rem 0.8rem;
    border-radius: 8px;
    font-size: 0.88rem;
    min-height: 0;
}
.adv-form-error:empty {
    display: none;
}
.adv-form-footer {
    text-align: center;
    color: var(--adv-text-muted);
    font-size: 0.92rem;
    margin: 0.5rem 0 0;
}

.adv-btn-spinner.hidden,
.adv-btn-label.hidden,
.hidden {
    display: none !important;
}

/* ---------- Social sign-in + divider ---------- */

.adv-social {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin-bottom: 1rem;
}
.adv-social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.7rem 0.9rem;
    border: 1px solid var(--adv-border, #e5e7eb);
    border-radius: 8px;
    background: #fff;
    color: var(--adv-text, #111827);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.adv-social-btn:hover {
    border-color: var(--adv-primary, #f59e0b);
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.14);
}
.adv-social-btn svg { width: 20px; height: 20px; }

.adv-divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--adv-text-muted, #6b7280);
    font-size: 0.82rem;
    margin: 0.25rem 0 1rem;
}
.adv-divider::before,
.adv-divider::after {
    content: "";
    flex: 1;
    border-bottom: 1px solid var(--adv-border, #e5e7eb);
}
.adv-divider span { padding: 0 0.75rem; }

/* ---------- Choose-email modal cards ---------- */

.adv-choose-email-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.85rem;
    margin-top: 0.5rem;
}

.adv-choice-card {
    text-align: left;
    appearance: none;
    background: var(--adv-bg, #fff);
    border: 1.5px solid var(--adv-border, #e5e7eb);
    border-radius: 12px;
    padding: 1.1rem 1rem 1rem;
    cursor: pointer;
    font-family: inherit;
    color: var(--adv-text, #111827);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: border-color 0.15s ease, transform 0.1s ease, box-shadow 0.15s ease;
}

.adv-choice-card:hover {
    border-color: var(--adv-primary, #f59e0b);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.16);
    transform: translateY(-2px);
}

.adv-choice-card:focus-visible {
    outline: 2px solid var(--adv-primary, #f59e0b);
    outline-offset: 2px;
}

.adv-choice-card__icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.18), rgba(234, 88, 12, 0.18));
    color: var(--adv-primary, #f59e0b);
    font-size: 1rem;
}

.adv-choice-card__title {
    font-size: 1.02rem;
    font-weight: 700;
    line-height: 1.2;
}

.adv-choice-card__desc {
    font-size: 0.86rem;
    line-height: 1.45;
    color: var(--adv-text-muted, #6b7280);
}

.adv-choice-card__cta {
    margin-top: auto;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--adv-primary, #f59e0b);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 720px) {
    .adv-nav-links { display: none; }
    .adv-form-row { grid-template-columns: 1fr; }
    .adv-footer-inner { grid-template-columns: 1fr; }
    .adv-choose-email-options { grid-template-columns: 1fr; }
}

/* ---------- Dark mode (uses [data-theme=dark] from theme.css) ---------- */

[data-theme="dark"] {
    --adv-bg: #0f172a;
    --adv-bg-alt: #1e293b;
    --adv-card-bg: #1e293b;
    --adv-border: #334155;
    --adv-text: #f1f5f9;
    --adv-text-muted: #94a3b8;
}
[data-theme="dark"] .adv-nav {
    background: rgba(15, 23, 42, 0.92);
}
[data-theme="dark"] .adv-form input[type=text],
[data-theme="dark"] .adv-form input[type=email],
[data-theme="dark"] .adv-form input[type=password] {
    background: #0f172a;
    color: #f1f5f9;
}
[data-theme="dark"] .adv-form-error {
    background: rgba(185, 28, 28, 0.15);
    border-color: rgba(185, 28, 28, 0.4);
    color: #fca5a5;
}
[data-theme="dark"] .adv-choice-card {
    background: #0f172a;
    border-color: #334155;
}
[data-theme="dark"] .adv-choice-card:hover {
    border-color: var(--adv-primary, #f59e0b);
}