/* ============================================================
   StampScaner — Premium landing
   © Кагиров Абдул-Хаким Ахмадович (Аслан Каа), 2026
   Design: премиум-филателистическая эстетика (бургунди + кремовый + матовое золото)
   Themes: Light (default) / Dark / Sepia
   ============================================================ */

/* --------- Reset --------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { line-height: 1.6; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* --------- Theme: Light (default) --------- */
:root {
    --c-bg: #F8F2E4;
    --c-bg-elevated: #FFFFFF;
    --c-bg-deep: #EFE6D2;
    --c-text: #1A1410;
    --c-text-soft: #5A4A3A;
    --c-text-muted: #8A7660;

    --c-burgundy: #6B1F2E;
    --c-burgundy-deep: #4D1520;
    --c-burgundy-soft: #C7807D;

    --c-gold: #B8924C;
    --c-gold-soft: #D9B97A;
    --c-gold-deep: #8A6B33;

    --c-border: #D9CCB1;
    --c-border-soft: #E8DDC4;

    --c-success: #5E7C3F;
    --c-warn: #B86A2C;
    --c-danger: #A33124;

    --shadow-sm: 0 1px 3px rgba(60, 30, 10, 0.08);
    --shadow-md: 0 4px 16px rgba(60, 30, 10, 0.10);
    --shadow-lg: 0 12px 40px rgba(60, 30, 10, 0.14);

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;

    --font-serif: 'Cormorant Garamond', 'Times New Roman', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Consolas', monospace;
}

/* --------- Theme: Dark --------- */
[data-theme="dark"] {
    --c-bg: #1A1410;
    --c-bg-elevated: #221A14;
    --c-bg-deep: #100B08;
    --c-text: #F5EDDC;
    --c-text-soft: #C7B89A;
    --c-text-muted: #8A7660;

    --c-burgundy: #C7807D;
    --c-burgundy-deep: #6B1F2E;
    --c-burgundy-soft: #E5A8A5;

    --c-gold: #D9B97A;
    --c-gold-soft: #EAD4A0;
    --c-gold-deep: #B8924C;

    --c-border: #3A2D20;
    --c-border-soft: #2A2018;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.40);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.55);
}

/* --------- Theme: Sepia --------- */
[data-theme="sepia"] {
    --c-bg: #EDE3D0;
    --c-bg-elevated: #F5ECD8;
    --c-bg-deep: #E0D2B5;
    --c-text: #3A2A18;
    --c-text-soft: #6A5238;
    --c-text-muted: #9A8260;

    --c-burgundy: #8A2A30;
    --c-burgundy-deep: #5D1A20;
    --c-burgundy-soft: #C68A82;

    --c-gold: #A6803A;
    --c-gold-soft: #C9A664;
    --c-gold-deep: #735623;

    --c-border: #C9B68A;
    --c-border-soft: #D9C9A0;

    --shadow-sm: 0 1px 3px rgba(80, 50, 20, 0.10);
    --shadow-md: 0 4px 16px rgba(80, 50, 20, 0.12);
    --shadow-lg: 0 12px 40px rgba(80, 50, 20, 0.18);
}

/* --------- Base --------- */
body {
    font-family: var(--font-sans);
    font-size: 16px;
    color: var(--c-text);
    background: var(--c-bg);
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.15;
    color: var(--c-text);
    letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.6rem, 5.5vw, 4.6rem); }
h2 { font-size: clamp(2.0rem, 4vw, 3.0rem); margin-bottom: 1.2rem; }
h3 { font-size: clamp(1.4rem, 2.2vw, 1.8rem); margin-bottom: 0.8rem; }
h4 { font-size: 1.2rem; margin-bottom: 0.5rem; }

p { color: var(--c-text-soft); }
strong { color: var(--c-text); font-weight: 600; }

::selection { background: var(--c-gold); color: var(--c-bg-elevated); }

/* --------- Layout --------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-narrow {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 96px 0;
    position: relative;
}

section.tight { padding: 64px 0; }

/* --------- Header --------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: color-mix(in srgb, var(--c-bg) 95%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--c-border-soft);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    max-width: 1320px;
    margin: 0 auto;
    gap: 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--c-burgundy);
    letter-spacing: 0.01em;
}
[data-theme="dark"] .brand { color: var(--c-burgundy-soft); }

.brand__mark {
    width: 36px;
    height: 36px;
    display: inline-block;
}

.nav {
    display: flex;
    align-items: center;
    gap: 28px;
    flex-wrap: wrap;
}

.nav__link {
    color: var(--c-text-soft);
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
    position: relative;
}
.nav__link:hover { color: var(--c-burgundy); }
[data-theme="dark"] .nav__link:hover { color: var(--c-burgundy-soft); }

.nav__link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0;
    height: 2px;
    background: var(--c-gold);
    transition: width 0.25s ease;
}
.nav__link:hover::after { width: 100%; }

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

.control-btn {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--c-text-soft);
    transition: background 0.2s ease, color 0.2s ease;
    font-size: 0.85rem;
    border: 1px solid var(--c-border-soft);
}
.control-btn:hover {
    background: var(--c-bg-deep);
    color: var(--c-burgundy);
}

.lang-select, .theme-select {
    background: transparent;
    color: var(--c-text-soft);
    border: 1px solid var(--c-border-soft);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-family: var(--font-sans);
}

/* --------- Buttons --------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
    transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
    border: 1px solid transparent;
    text-align: center;
    cursor: pointer;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
    background: var(--c-burgundy);
    color: #F8F2E4;
    box-shadow: var(--shadow-sm);
}
.btn--primary:hover {
    background: var(--c-burgundy-deep);
    box-shadow: var(--shadow-md);
}

.btn--gold {
    background: var(--c-gold);
    color: #1A1410;
    box-shadow: var(--shadow-sm);
}
.btn--gold:hover {
    background: var(--c-gold-deep);
    color: #F8F2E4;
    box-shadow: var(--shadow-md);
}

.btn--ghost {
    background: transparent;
    color: var(--c-burgundy);
    border-color: var(--c-burgundy);
}
[data-theme="dark"] .btn--ghost { color: var(--c-burgundy-soft); border-color: var(--c-burgundy-soft); }
.btn--ghost:hover {
    background: var(--c-burgundy);
    color: #F8F2E4;
}

.btn--lg { padding: 18px 36px; font-size: 1.05rem; }

/* --------- Hero --------- */
.hero {
    padding: 80px 0 96px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at top right, color-mix(in srgb, var(--c-gold) 18%, transparent) 0%, transparent 50%),
        radial-gradient(ellipse at bottom left, color-mix(in srgb, var(--c-burgundy) 12%, transparent) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.hero__inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 72px;
    align-items: center;
}

@media (max-width: 900px) {
    .hero__inner { grid-template-columns: 1fr; gap: 56px; text-align: center; }
}

.hero__eyebrow {
    display: inline-block;
    padding: 6px 14px;
    border: 1px solid var(--c-gold);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--c-gold-deep);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 28px;
    font-weight: 500;
}
[data-theme="dark"] .hero__eyebrow { color: var(--c-gold-soft); }

.hero__title {
    margin-bottom: 24px;
}

.hero__title em {
    font-style: italic;
    color: var(--c-burgundy);
}
[data-theme="dark"] .hero__title em { color: var(--c-burgundy-soft); }

.hero__lead {
    font-size: 1.2rem;
    color: var(--c-text-soft);
    max-width: 580px;
    margin-bottom: 40px;
    line-height: 1.55;
}
@media (max-width: 900px) {
    .hero__lead { margin-left: auto; margin-right: auto; }
}

.hero__actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
@media (max-width: 900px) {
    .hero__actions { justify-content: center; }
}

.hero__visual {
    position: relative;
    min-height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* --------- Stamp visual (decorative) --------- */
.stamp-frame {
    position: relative;
    width: 100%;
    max-width: 360px;
    aspect-ratio: 3/4;
    background: var(--c-bg-elevated);
    box-shadow: var(--shadow-lg);
    border-radius: 4px;
    padding: 18px;
    transform: rotate(-3deg);
    transition: transform 0.3s ease;
}
.stamp-frame:hover { transform: rotate(0deg) scale(1.02); }

.stamp-frame::before, .stamp-frame::after {
    content: '';
    position: absolute;
    inset: -4px;
    background-image:
        radial-gradient(circle, var(--c-bg) 4px, transparent 4.5px);
    background-size: 12px 12px;
    background-position: center;
    pointer-events: none;
    z-index: -1;
}

.stamp-frame__inner {
    height: 100%;
    background: linear-gradient(180deg,
        color-mix(in srgb, var(--c-burgundy) 95%, white) 0%,
        var(--c-burgundy-deep) 100%);
    border-radius: 2px;
    padding: 24px 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    color: #F5EDDC;
    font-family: var(--font-serif);
}

.stamp-frame__country {
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    opacity: 0.85;
}

.stamp-frame__title {
    font-size: 1.6rem;
    margin: 20px 0;
    line-height: 1.1;
}

.stamp-frame__denomination {
    align-self: flex-end;
    background: var(--c-gold);
    color: #1A1410;
    padding: 6px 12px;
    border-radius: 2px;
    font-weight: 600;
    font-size: 1.1rem;
    font-family: var(--font-sans);
}

.stamp-frame__year {
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    opacity: 0.7;
    margin-top: 16px;
}

.stamp-frame__cert-badge {
    position: absolute;
    top: -28px;
    right: -28px;
    width: 96px;
    height: 96px;
    border-radius: 50%;
    background: var(--c-gold);
    color: #1A1410;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    font-family: var(--font-serif);
    font-weight: 600;
    box-shadow: var(--shadow-md);
    transform: rotate(12deg);
    border: 3px solid var(--c-bg);
    font-size: 0.7rem;
    line-height: 1.1;
    text-align: center;
    padding: 6px;
}

/* --------- Sections --------- */
.section-heading {
    text-align: center;
    margin-bottom: 56px;
}
.section-heading__eyebrow {
    color: var(--c-gold-deep);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-size: 0.85rem;
    margin-bottom: 16px;
    font-weight: 500;
}
[data-theme="dark"] .section-heading__eyebrow { color: var(--c-gold-soft); }

.section-heading__lead {
    max-width: 640px;
    margin: 12px auto 0;
    color: var(--c-text-soft);
    font-size: 1.1rem;
}

/* --------- Services grid --------- */
.services {
    background: var(--c-bg-deep);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--c-bg-elevated);
    border: 1px solid var(--c-border-soft);
    border-radius: var(--radius-md);
    padding: 32px 28px;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--c-gold);
}

.service-card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    background: color-mix(in srgb, var(--c-burgundy) 12%, transparent);
    color: var(--c-burgundy);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.4rem;
}
[data-theme="dark"] .service-card__icon { color: var(--c-burgundy-soft); background: color-mix(in srgb, var(--c-burgundy) 25%, transparent); }

.service-card__title {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    color: var(--c-text);
    margin-bottom: 12px;
}

.service-card__desc {
    color: var(--c-text-soft);
    font-size: 0.95rem;
}

.service-card__price {
    display: inline-block;
    margin-top: 16px;
    padding: 4px 10px;
    border-radius: 4px;
    background: var(--c-gold);
    color: #1A1410;
    font-weight: 600;
    font-size: 0.9rem;
}

.service-card__free {
    display: inline-block;
    margin-top: 16px;
    padding: 4px 10px;
    border-radius: 4px;
    background: var(--c-success);
    color: #F5EDDC;
    font-weight: 600;
    font-size: 0.9rem;
}

/* --------- Postman section --------- */
.postman {
    padding: 120px 0;
    background: var(--c-burgundy-deep);
    color: #F5EDDC;
    position: relative;
    overflow: hidden;
}

.postman::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, color-mix(in srgb, var(--c-gold) 12%, transparent) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, color-mix(in srgb, var(--c-burgundy-soft) 8%, transparent) 0%, transparent 40%);
    pointer-events: none;
}

.postman__inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 72px;
    align-items: center;
}
@media (max-width: 900px) {
    .postman__inner { grid-template-columns: 1fr; gap: 48px; }
}

.postman h2 { color: #F5EDDC; }
.postman p { color: rgba(245, 237, 220, 0.85); }

.postman__eyebrow {
    color: var(--c-gold-soft);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-size: 0.85rem;
    margin-bottom: 16px;
    font-weight: 500;
}

.postman__lead {
    font-size: 1.15rem;
    margin: 20px 0 32px;
    max-width: 520px;
}

.postman__attrs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin: 28px 0 36px;
}
@media (max-width: 480px) {
    .postman__attrs { grid-template-columns: 1fr; }
}

.postman__attr {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    font-size: 0.95rem;
    color: rgba(245, 237, 220, 0.92);
}

.postman__attr::before {
    content: '✦';
    color: var(--c-gold);
    flex-shrink: 0;
    margin-top: 2px;
}

/* Chat preview card */
.chat-preview {
    background: rgba(245, 237, 220, 0.05);
    border: 1px solid rgba(245, 237, 220, 0.12);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-lg);
}

.chat-preview__header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(245, 237, 220, 0.10);
    margin-bottom: 20px;
}

.chat-preview__avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--c-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1A1410;
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 600;
    flex-shrink: 0;
}

.chat-preview__name {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: #F5EDDC;
}

.chat-preview__status {
    font-size: 0.8rem;
    color: var(--c-gold-soft);
    display: flex;
    align-items: center;
    gap: 6px;
}
.chat-preview__status::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #66CC8A;
}

.chat-preview__msg {
    margin-bottom: 14px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    max-width: 90%;
}

.chat-preview__msg--user {
    background: var(--c-burgundy);
    color: #F5EDDC;
    margin-left: auto;
    border-bottom-right-radius: 2px;
}
.chat-preview__msg--postman {
    background: rgba(245, 237, 220, 0.10);
    color: #F5EDDC;
    border-bottom-left-radius: 2px;
}

.chat-preview__input {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid rgba(245, 237, 220, 0.10);
    display: flex;
    gap: 8px;
    align-items: center;
}

.chat-preview__field {
    flex: 1;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    background: rgba(245, 237, 220, 0.06);
    color: #F5EDDC;
    border: 1px solid rgba(245, 237, 220, 0.10);
    font-size: 0.95rem;
    font-family: var(--font-sans);
}

.chat-preview__send {
    padding: 12px 18px;
    border-radius: var(--radius-sm);
    background: var(--c-gold);
    color: #1A1410;
    font-weight: 600;
    border: none;
    cursor: pointer;
}

.chat-typing {
    display: inline-flex;
    gap: 4px;
    padding: 2px 0;
}
.chat-typing > span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(245, 237, 220, 0.7);
    animation: chat-typing-blink 1.2s infinite ease-in-out both;
}
.chat-typing > span:nth-child(2) { animation-delay: 0.18s; }
.chat-typing > span:nth-child(3) { animation-delay: 0.36s; }

@keyframes chat-typing-blink {
    0%, 80%, 100% { opacity: 0.3; transform: translateY(0); }
    40%           { opacity: 1;   transform: translateY(-2px); }
}

/* --------- Certificate section --------- */
.certificate {
    background: var(--c-bg);
}

.certificate__inner {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 72px;
    align-items: center;
}
@media (max-width: 900px) {
    .certificate__inner { grid-template-columns: 1fr; gap: 48px; }
}

.certificate__doc {
    background: var(--c-bg-elevated);
    border: 2px solid var(--c-gold);
    border-radius: var(--radius-sm);
    padding: 36px 32px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    aspect-ratio: 3/4;
}

.certificate__doc::before {
    content: '';
    position: absolute;
    inset: 6px;
    border: 1px solid var(--c-gold);
    pointer-events: none;
    border-radius: 2px;
}

.certificate__doc-header {
    text-align: center;
    border-bottom: 1px solid var(--c-border);
    padding-bottom: 16px;
    margin-bottom: 20px;
}

.certificate__doc-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--c-burgundy);
    margin-bottom: 4px;
}
[data-theme="dark"] .certificate__doc-title { color: var(--c-burgundy-soft); }

.certificate__doc-sub {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-text-muted);
}

.certificate__doc-body {
    font-size: 0.9rem;
    color: var(--c-text-soft);
    line-height: 1.7;
}

.certificate__doc-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px dashed var(--c-border-soft);
}
.certificate__doc-row:last-child { border: none; }

.certificate__doc-row span:first-child {
    color: var(--c-text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.certificate__doc-row span:last-child {
    color: var(--c-text);
    font-weight: 600;
    font-family: var(--font-serif);
}

.certificate__doc-footer {
    margin-top: 20px;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 16px;
    align-items: flex-end;
}

.certificate__signature {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.4rem;
    color: var(--c-burgundy);
    border-bottom: 1px solid var(--c-text-muted);
    padding-bottom: 4px;
    text-align: center;
}
[data-theme="dark"] .certificate__signature { color: var(--c-burgundy-soft); }

.certificate__sig-name {
    text-align: center;
    font-size: 0.75rem;
    color: var(--c-text-muted);
    margin-top: 6px;
}

.certificate__qr {
    width: 64px;
    height: 64px;
    background:
        linear-gradient(45deg, var(--c-text) 25%, transparent 25%, transparent 75%, var(--c-text) 75%),
        linear-gradient(45deg, var(--c-text) 25%, transparent 25%, transparent 75%, var(--c-text) 75%),
        var(--c-bg-elevated);
    background-size: 16px 16px;
    background-position: 0 0, 8px 8px;
    border: 4px solid var(--c-bg-elevated);
    box-shadow: 0 0 0 1px var(--c-text);
}

.certificate__features {
    list-style: none;
}

.certificate__features li {
    display: flex;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid var(--c-border-soft);
    align-items: flex-start;
}

.certificate__features li::before {
    content: '✓';
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--c-gold);
    color: #1A1410;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.85rem;
    margin-top: 2px;
}

.certificate__features strong {
    display: block;
    margin-bottom: 4px;
    color: var(--c-text);
}

.certificate__features p {
    margin: 0;
    font-size: 0.93rem;
}

/* --------- Pricing --------- */
.pricing {
    background: var(--c-bg-deep);
}

.pricing__toggle {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin-bottom: 40px;
    padding: 4px;
    background: var(--c-bg-elevated);
    border: 1px solid var(--c-border-soft);
    border-radius: 100px;
    width: max-content;
    margin-left: auto;
    margin-right: auto;
}

.pricing__toggle-btn {
    padding: 10px 24px;
    border-radius: 100px;
    color: var(--c-text-soft);
    font-weight: 500;
    transition: all 0.2s ease;
}
.pricing__toggle-btn.active {
    background: var(--c-burgundy);
    color: #F5EDDC;
}

.pricing__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.price-card {
    background: var(--c-bg-elevated);
    border: 1px solid var(--c-border-soft);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    position: relative;
}
.price-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.price-card--featured {
    border-color: var(--c-gold);
    background: linear-gradient(180deg,
        color-mix(in srgb, var(--c-gold) 8%, var(--c-bg-elevated)) 0%,
        var(--c-bg-elevated) 100%);
}

.price-card__tag {
    position: absolute;
    top: -14px;
    right: 24px;
    padding: 6px 16px;
    background: var(--c-gold);
    color: #1A1410;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.price-card__title {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    color: var(--c-text);
    margin-bottom: 8px;
}

.price-card__sub {
    color: var(--c-text-muted);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.price-card__amount {
    display: flex;
    align-items: baseline;
    gap: 6px;
    margin-bottom: 28px;
}
.price-card__currency {
    font-size: 1.2rem;
    color: var(--c-burgundy);
    font-weight: 600;
}
[data-theme="dark"] .price-card__currency { color: var(--c-burgundy-soft); }
.price-card__value {
    font-family: var(--font-serif);
    font-size: 3rem;
    color: var(--c-text);
    font-weight: 500;
    line-height: 1;
}
.price-card__period {
    color: var(--c-text-muted);
    font-size: 0.95rem;
}

.price-card__features {
    list-style: none;
    margin-bottom: 28px;
}
.price-card__features li {
    padding: 8px 0;
    color: var(--c-text-soft);
    font-size: 0.95rem;
    display: flex;
    gap: 10px;
    align-items: flex-start;
}
.price-card__features li::before {
    content: '✓';
    color: var(--c-gold-deep);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}
[data-theme="dark"] .price-card__features li::before { color: var(--c-gold-soft); }

/* --------- Trust / Legal section --------- */
.trust {
    background: var(--c-bg);
}

.trust__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 28px;
    margin-top: 56px;
}

.trust__item {
    text-align: center;
    padding: 24px;
}

.trust__item-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    border-radius: 50%;
    background: var(--c-bg-deep);
    color: var(--c-burgundy);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    border: 2px solid var(--c-gold);
}
[data-theme="dark"] .trust__item-icon { color: var(--c-burgundy-soft); }

.trust__item h4 {
    font-family: var(--font-serif);
    margin-bottom: 8px;
}

.trust__item p {
    font-size: 0.92rem;
}

/* --------- About / Founder --------- */
.founder {
    background: var(--c-bg-deep);
}

.founder__inner {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 64px;
    align-items: center;
}
@media (max-width: 900px) {
    .founder__inner { grid-template-columns: 1fr; gap: 40px; text-align: center; }
}

.founder__portrait {
    width: 100%;
    max-width: 340px;
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    background:
        linear-gradient(135deg, var(--c-burgundy) 0%, var(--c-burgundy-deep) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #F5EDDC;
    font-family: var(--font-serif);
    font-size: 6rem;
    box-shadow: var(--shadow-lg);
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

.founder__portrait::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top left, color-mix(in srgb, var(--c-gold) 30%, transparent) 0%, transparent 60%);
}

.founder h2 { margin-bottom: 8px; }

.founder__role {
    color: var(--c-gold-deep);
    font-weight: 500;
    letter-spacing: 0.05em;
    margin-bottom: 28px;
    text-transform: uppercase;
    font-size: 0.9rem;
}
[data-theme="dark"] .founder__role { color: var(--c-gold-soft); }

/* --------- Contacts / CTA footer --------- */
.cta-final {
    background: var(--c-burgundy-deep);
    color: #F5EDDC;
    text-align: center;
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.cta-final::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at center, color-mix(in srgb, var(--c-gold) 8%, transparent) 0%, transparent 70%);
}

.cta-final h2 { color: #F5EDDC; margin-bottom: 16px; }
.cta-final p { color: rgba(245, 237, 220, 0.85); max-width: 580px; margin: 0 auto 36px; font-size: 1.1rem; }

.cta-final__actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.cta-final__contacts {
    margin-top: 40px;
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.cta-final__contact {
    color: rgba(245, 237, 220, 0.85);
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border: 1px solid rgba(245, 237, 220, 0.18);
    border-radius: 100px;
    transition: background 0.2s ease, border-color 0.2s ease;
}
.cta-final__contact:hover {
    background: rgba(245, 237, 220, 0.08);
    border-color: var(--c-gold);
}

/* --------- Footer --------- */
.site-footer {
    background: var(--c-bg-deep);
    padding: 56px 0 32px;
    border-top: 1px solid var(--c-border-soft);
}

.site-footer__top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}
@media (max-width: 900px) {
    .site-footer__top { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 500px) {
    .site-footer__top { grid-template-columns: 1fr; }
}

.site-footer__col h4 {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--c-text-muted);
    margin-bottom: 18px;
    font-weight: 500;
}

.site-footer__col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.site-footer__col a {
    color: var(--c-text-soft);
    font-size: 0.92rem;
    transition: color 0.2s ease;
}
.site-footer__col a:hover { color: var(--c-burgundy); }
[data-theme="dark"] .site-footer__col a:hover { color: var(--c-burgundy-soft); }

.site-footer__about p {
    font-size: 0.93rem;
    color: var(--c-text-muted);
    max-width: 360px;
    margin-top: 12px;
}

.site-footer__bottom {
    border-top: 1px solid var(--c-border-soft);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    color: var(--c-text-muted);
    font-size: 0.85rem;
}

.legal-disclaimer {
    background: color-mix(in srgb, var(--c-warn) 6%, var(--c-bg-deep));
    border: 1px solid color-mix(in srgb, var(--c-warn) 30%, transparent);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    margin-bottom: 24px;
    font-size: 0.88rem;
    color: var(--c-text-soft);
    line-height: 1.55;
}

.legal-disclaimer strong { color: var(--c-warn); }

/* --------- RTL support for Arabic --------- */
[dir="rtl"] .nav__link::after { left: auto; right: 0; }
[dir="rtl"] .chat-preview__msg--user { margin-left: 0; margin-right: auto; }
[dir="rtl"] .chat-preview__msg--user { border-bottom-right-radius: var(--radius-sm); border-bottom-left-radius: 2px; }
[dir="rtl"] .stamp-frame { transform: rotate(3deg); }
[dir="rtl"] .stamp-frame__cert-badge { right: auto; left: -28px; transform: rotate(-12deg); }

/* --------- Utility --------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mt-md { margin-top: 24px; }
.mt-lg { margin-top: 48px; }

/* --------- Animations --------- */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-up {
    animation: fadeUp 0.6s ease forwards;
}

/* --------- Mobile menu --------- */
.mobile-toggle {
    display: none;
    font-size: 1.4rem;
}

@media (max-width: 760px) {
    .nav { display: none; }
    .mobile-toggle { display: flex; }
    .nav.is-open {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--c-bg-elevated);
        flex-direction: column;
        padding: 16px 24px;
        gap: 4px;
        border-bottom: 1px solid var(--c-border);
        box-shadow: var(--shadow-md);
    }
    .nav.is-open .nav__link {
        padding: 12px 0;
        border-bottom: 1px solid var(--c-border-soft);
    }
    .controls .control-btn span { display: none; }
}

/* --------- Print styles for certificate page --------- */
@media print {
    .site-header, .site-footer, .controls { display: none !important; }
    body { background: white; color: black; }
}

/* --------- Legal pages (terms / privacy) --------- */
.legal-page {
    padding: 72px 0 96px;
    background: var(--c-bg);
}

.legal-page__hero {
    border-bottom: 1px solid var(--c-border-soft);
    padding-bottom: 32px;
    margin-bottom: 48px;
}
.legal-page__hero .section-heading__eyebrow { margin-bottom: 12px; }
.legal-page__hero h1 {
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    margin-bottom: 12px;
}
.legal-page__hero .legal-meta {
    color: var(--c-text-muted);
    font-size: 0.95rem;
}
.legal-page__hero .legal-meta strong { color: var(--c-text-soft); }

.legal-body {
    max-width: 800px;
}
.legal-body p,
.legal-body li {
    font-size: 1rem;
    line-height: 1.75;
    color: var(--c-text-soft);
}
.legal-body p { margin-bottom: 16px; }
.legal-body h2 {
    font-size: clamp(1.45rem, 2.2vw, 1.85rem);
    margin: 48px 0 16px;
    padding-top: 12px;
    border-top: 1px solid var(--c-border-soft);
    color: var(--c-text);
}
.legal-body h2:first-child { border-top: none; padding-top: 0; margin-top: 0; }
.legal-body h3 {
    font-size: 1.2rem;
    margin: 28px 0 10px;
    color: var(--c-text);
}
.legal-body ul, .legal-body ol {
    margin: 12px 0 20px;
    padding-inline-start: 24px;
}
.legal-body li { margin-bottom: 8px; }
.legal-body a {
    color: var(--c-burgundy);
    text-decoration: underline;
    text-underline-offset: 3px;
}
[data-theme="dark"] .legal-body a { color: var(--c-burgundy-soft); }
.legal-body strong { color: var(--c-text); }

.callout {
    background: var(--c-bg-elevated);
    border-inline-start: 4px solid var(--c-gold);
    padding: 16px 20px;
    border-radius: 4px;
    margin: 20px 0;
    font-size: 0.97rem;
    color: var(--c-text-soft);
}
.callout strong { color: var(--c-warn); }

.toc {
    background: var(--c-bg-elevated);
    border: 1px solid var(--c-border-soft);
    border-radius: var(--radius-md);
    padding: 24px 28px;
    margin-bottom: 40px;
}
.toc h3 {
    margin: 0 0 12px;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--c-text-muted);
    font-family: var(--font-sans);
    font-weight: 500;
}
.toc ol {
    counter-reset: toc-num;
    list-style: none;
    padding: 0;
    margin: 0;
}
.toc li {
    counter-increment: toc-num;
    padding: 4px 0;
    font-size: 0.93rem;
}
.toc li::before {
    content: counter(toc-num) ".";
    color: var(--c-gold-deep);
    margin-inline-end: 8px;
    font-variant-numeric: tabular-nums;
}
[data-theme="dark"] .toc li::before { color: var(--c-gold-soft); }
.toc a { color: var(--c-text-soft); text-decoration: none; }
.toc a:hover { color: var(--c-burgundy); }

/* --------- Registry page --------- */
.registry-search {
    display: flex;
    gap: 8px;
    max-width: 600px;
    margin: 32px auto 48px;
}
.registry-search input {
    flex: 1;
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--c-border);
    background: var(--c-bg-elevated);
    color: var(--c-text);
    font-size: 1rem;
    font-family: var(--font-sans);
}
.registry-search button {
    padding: 14px 24px;
}

.registry-list {
    display: grid;
    gap: 16px;
}
.cert-row {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 20px;
    align-items: center;
    background: var(--c-bg-elevated);
    border: 1px solid var(--c-border-soft);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    transition: border-color 0.2s ease, transform 0.2s ease;
}
.cert-row:hover {
    border-color: var(--c-gold);
    transform: translateY(-1px);
}
.cert-row__num {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--c-text-muted);
    background: var(--c-bg-deep);
    padding: 6px 10px;
    border-radius: 4px;
    white-space: nowrap;
}
.cert-row__title {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--c-text);
    margin-bottom: 4px;
}
.cert-row__meta {
    color: var(--c-text-muted);
    font-size: 0.9rem;
}
.cert-row__tag {
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}
.cert-row__tag--pre {
    background: color-mix(in srgb, var(--c-warn) 15%, transparent);
    color: var(--c-warn);
    border: 1px solid color-mix(in srgb, var(--c-warn) 40%, transparent);
}
.cert-row__tag--full {
    background: var(--c-gold);
    color: #1A1410;
}
@media (max-width: 600px) {
    .cert-row { grid-template-columns: 1fr; gap: 12px; }
}

.registry-empty {
    text-align: center;
    padding: 64px 20px;
    background: var(--c-bg-elevated);
    border: 1px dashed var(--c-border);
    border-radius: var(--radius-md);
    color: var(--c-text-muted);
}
.registry-empty h3 {
    font-family: var(--font-serif);
    color: var(--c-text-soft);
    margin-bottom: 8px;
}