:root {

    --paper: #FCFAF6;
    --paper-2: #F4EEE2;
    --surface: #FFFFFF;
    --surface-2: #F7F1E8;
    --surface-3: #FBF6EE;
    --surface-ink: #241C14;

    --ink: #221A12;
    --ink-2: #5C4B3A;
    --ink-3: #8B7862;
    --ink-on-dark: #F5EBDB;
    --ink-on-dark-2: #CDBB9C;

    --brown: #9A6738;
    --brown-deep: #7C4E2A;
    --brown-soft: #C79A6D;

    --gold: #BE9052;
    --gold-deep: #9C7333;
    --gold-soft: #E4C892;
    --gold-glow: rgba(190, 144, 82, .15);

    --hairline: #E6DAC8;
    --hairline-soft: #F0E8DA;


    --primary-bg: #7C4E2A;
    --primary-fg: #FDF8EF;
    --primary-bg-h: #8E5C33;
    --accent-bg: #BE9052;
    --accent-fg: #2A1E11;
    --accent-bg-h: #CD9E5D;

    --header-bg: rgba(252, 250, 246, .82);
    --header-bg-2: rgba(252, 250, 246, .96);
    --footer-bg: linear-gradient(180deg, #F7EEDC 0%, #EFE1C6 100%);
    --footer-fg: var(--ink);
    --footer-fg-2: var(--ink-2);
    --footer-muted: var(--ink-3);
    --footer-border: var(--hairline);
    --footer-social: var(--brown);
    --footer-chip: rgba(138, 90, 52, .05);
    --footer-chip-border: var(--hairline);
    --footer-accent: var(--gold-deep);
    --popup-bg: #241C14;
    --popup-fg: #F5EBDB;

    --ok: #4E7A3E;
    --danger: #B4523A;
    --warn: #B0894C;
    --focus: #BE9052;
    --overlay: rgba(33, 24, 15, .5);


    --shadow-1: 0 1px 2px rgba(60, 40, 18, .05), 0 1px 3px rgba(60, 40, 18, .05);
    --shadow-2: 0 10px 28px -12px rgba(60, 40, 18, .16);
    --shadow-3: 0 26px 52px -20px rgba(60, 40, 18, .22);
    --ring: 0 0 0 4px var(--gold-glow);
}

:root {

    --r-xs: 4px;
    --r-sm: 8px;
    --r: 12px;
    --r-md: 14px;
    --r-lg: 18px;
    --r-xl: 22px;


    --font-ui: 'Vazirmatn', 'Vazir', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --font-display: 'Vazirmatn', 'Vazir', system-ui, sans-serif;

    --fs-xs: .78rem;
    --fs-sm: .875rem;
    --fs-base: 1rem;
    --fs-md: 1.125rem;
    --fs-lg: 1.375rem;
    --fs-xl: 1.75rem;
    --fs-2xl: clamp(1.9rem, 3.4vw, 2.5rem);
    --fs-3xl: clamp(2.3rem, 4.8vw, 3.3rem);
    --fs-display: clamp(2.7rem, 6.6vw, 4.6rem);
    --lh-tight: 1.2;
    --lh-snug: 1.5;
    --lh-body: 1.85;


    --sp-1: 4px;
    --sp-2: 8px;
    --sp-3: 12px;
    --sp-4: 16px;
    --sp-5: 24px;
    --sp-6: 32px;
    --sp-7: 48px;
    --sp-8: 64px;
    --sp-9: 96px;
    --sp-10: 128px;


    --maxw: 1200px;
    --maxw-wide: 1320px;
    --maxw-read: 720px;
    --header-h: 76px;
    --gutter: clamp(16px, 4vw, 32px);


    --ease: cubic-bezier(.2, .7, .3, 1);
    --ease-out: cubic-bezier(.16, 1, .3, 1);
    --ease-spring: cubic-bezier(.34, 1.56, .64, 1);
    --dur-1: .16s;
    --dur-2: .28s;
    --dur-3: .5s;
    --dur-4: .8s;

    --z-header: 1100;
    --z-overlay: 9000;
    --z-toast: 10000;
    color-scheme: light;
}


[data-theme="dark"] {
    --paper: #14100C;
    --paper-2: #1A140F;
    --surface: #221A13;
    --surface-2: #2A2118;
    --surface-3: #302619;
    --surface-ink: #2A2118;

    --ink: #F4EADB;
    --ink-2: #D3C1A4;
    --ink-3: #9F8B71;
    --ink-on-dark: #F5EBDB;
    --ink-on-dark-2: #CDBB9C;

    --brown: #C68F57;
    --brown-deep: #D9A971;
    --brown-soft: #8A5E38;

    --gold: #D9B172;
    --gold-deep: #E1BE84;
    --gold-soft: #F0D6A4;
    --gold-glow: rgba(217, 177, 114, .18);

    --hairline: #3B2E22;
    --hairline-soft: #2C2117;

    --primary-bg: #C68F57;
    --primary-fg: #1A130D;
    --primary-bg-h: #D49E63;
    --accent-bg: #D9B172;
    --accent-fg: #1A130D;
    --accent-bg-h: #E4C084;

    --header-bg: rgba(20, 16, 12, .74);
    --header-bg-2: rgba(20, 16, 12, .95);
    --footer-bg: linear-gradient(180deg, #241A10 0%, #180F08 100%);
    --footer-fg: #ECE0C8;
    --footer-fg-2: #CDBB9C;
    --footer-muted: #AD997A;
    --footer-border: rgba(217, 177, 114, .22);
    --footer-social: var(--gold-soft);
    --footer-chip: rgba(255, 255, 255, .05);
    --footer-chip-border: rgba(217, 177, 114, .26);
    --footer-accent: var(--gold-soft);
    --popup-bg: #2A2118;
    --popup-fg: #F5EBDB;

    --ok: #7FA968;
    --danger: #E0795C;
    --warn: #D9B172;
    --focus: #D9B172;
    --overlay: rgba(0, 0, 0, .66);

    --shadow-1: 0 1px 2px rgba(0, 0, 0, .5);
    --shadow-2: 0 12px 30px -12px rgba(0, 0, 0, .65);
    --shadow-3: 0 28px 56px -20px rgba(0, 0, 0, .72);
    color-scheme: dark;
}


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

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

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

body {
    font-family: var(--font-ui);
    font-size: var(--fs-base);
    line-height: var(--lh-body);
    color: var(--ink);
    background: var(--paper);
    min-height: 100vh;
    overflow-x: hidden;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(1100px 460px at 82% -8%, var(--gold-glow), transparent 70%),
    radial-gradient(900px 420px at 10% -6%, rgba(154, 103, 56, .07), transparent 72%);
}


body, .site-header, .card, .feature, .surface, .frame, .chip, .word-item,
input, textarea, select, .btn, .site-footer, table.table, .table-wrap {
    transition: background-color var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease), color var(--dur-2) var(--ease);
}

img, svg, video {
    max-width: 100%;
    height: auto;
    display: block;
}

svg {
    fill: none;
}

a {
    color: var(--gold-deep);
    text-decoration: none;
    transition: color var(--dur-1) var(--ease);
}

a:hover {
    color: var(--brown-deep);
}

::selection {
    background: var(--primary-bg);
    color: var(--primary-fg);
}

:focus-visible {
    outline: 2px solid var(--focus);
    outline-offset: 2px;
    border-radius: var(--r-xs);
}

::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--paper-2);
}

::-webkit-scrollbar-thumb {
    background: var(--brown-soft);
    border: 3px solid var(--paper-2);
    border-radius: 20px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--brown);
}

* {
    scrollbar-color: var(--brown-soft) var(--paper-2);
    scrollbar-width: thin;
}


h1, h2, h3, h4, h5, h6 {
    line-height: var(--lh-tight);
    color: var(--ink);
    font-weight: 800;
    letter-spacing: -.01em;
}

h1 {
    font-size: var(--fs-3xl);
    font-weight: 900;
}

h2 {
    font-size: var(--fs-2xl);
}

h3 {
    font-size: var(--fs-lg);
    font-weight: 800;
}

h4 {
    font-size: var(--fs-md);
}

p {
    max-width: 72ch;
}

.lead {
    font-size: var(--fs-md);
    color: var(--ink-2);
    line-height: var(--lh-snug);
}

.muted {
    color: var(--ink-3);
}

small, .text-sm {
    font-size: var(--fs-sm);
}

.prose {
    max-width: var(--maxw-read);
}

.prose p, .prose li {
    color: var(--ink-2);
}

.prose > * + * {
    margin-block-start: var(--sp-4);
}


.grad-text {
    background: linear-gradient(100deg, var(--brown-deep), var(--gold-deep) 60%, var(--brown));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.display {
    font-family: var(--font-display);
    font-size: var(--fs-display);
    font-weight: 900;
    line-height: 1.08;
    letter-spacing: -.02em;
}


.container {
    max-width: var(--maxw);
    margin-inline: auto;
    padding-inline: var(--gutter);
    width: 100%;
}

.container-wide {
    max-width: var(--maxw-wide);
    margin-inline: auto;
    padding-inline: var(--gutter);
    width: 100%;
}

.container-read {
    max-width: var(--maxw-read);
    margin-inline: auto;
    padding-inline: var(--gutter);
    width: 100%;
}

.section {
    padding-block: clamp(48px, 8vw, 104px);
}

.section--tight {
    padding-block: clamp(28px, 4vw, 52px);
}

.section-head {
    text-align: center;
    margin-block-end: var(--sp-7);
    max-width: 720px;
    margin-inline: auto;
}

.section-head h2 {
    color: var(--ink);
}

.section-head .sub {
    color: var(--ink-3);
    margin-block-start: var(--sp-3);
    font-size: var(--fs-md);
}


.rule-ornament {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-3);
    margin-block-start: var(--sp-4);
}

.rule-ornament::before, .rule-ornament::after {
    content: "";
    height: 2px;
    width: clamp(48px, 12vw, 130px);
    border-radius: 2px;
    background: linear-gradient(var(--_d, 90deg), transparent, var(--gold));
}

.rule-ornament::after {
    --_d: 270deg;
}

.rule-ornament .diamond {
    width: 9px;
    height: 9px;
    background: var(--gold);
    transform: rotate(45deg);
    border-radius: 2px;
}


.btn {
    --_bg: var(--primary-bg);
    --_fg: var(--primary-fg);
    --_bgh: var(--primary-bg-h);
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-2);
    min-height: 46px;
    padding: 12px 28px;
    font-family: var(--font-ui);
    font-size: var(--fs-base);
    font-weight: 700;
    line-height: 1;
    color: var(--_fg);
    background: var(--_bg);
    border: 1px solid transparent;
    border-radius: var(--r);
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
    box-shadow: var(--shadow-1);
    transition: transform var(--dur-1) var(--ease), box-shadow var(--dur-2) var(--ease), background var(--dur-2) var(--ease);
}

.btn::before {
    content: "";
    position: absolute;
    inset: 0;
    transform: translateX(-120%);
    background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .28), transparent);
    transition: transform var(--dur-3) var(--ease);
}

.btn:hover {
    background: var(--_bgh);
    transform: translateY(-2px);
    box-shadow: var(--shadow-2);
}

.btn:hover::before {
    transform: translateX(120%);
}

.btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-1);
}

.btn:disabled, .btn[aria-disabled="true"] {
    opacity: .55;
    pointer-events: none;
    box-shadow: none;
}

.btn .icon {
    width: 20px;
    height: 20px;
}

.btn--primary {
    --_bg: var(--primary-bg);
    --_fg: var(--primary-fg);
    --_bgh: var(--primary-bg-h);
}

.btn--gold {
    --_bg: var(--accent-bg);
    --_fg: var(--accent-fg);
    --_bgh: var(--accent-bg-h);
    color: var(--surface-3) !important;
}

.btn--ink {
    --_bg: var(--surface-ink);
    --_fg: var(--ink-on-dark);
    --_bgh: var(--surface-3);
}

.btn--outline {
    --_bg: transparent;
    --_fg: var(--brown-deep);
    --_bgh: var(--surface-2);
    border-color: var(--hairline);
    box-shadow: none;
    color: var(--brown-deep);
}

.btn--outline:hover {
    border-color: var(--gold);
}

.btn--ghost {
    --_bg: transparent;
    --_fg: var(--brown-deep);
    --_bgh: var(--surface-2);
    box-shadow: none;
}

.btn--sm {
    min-height: 38px;
    padding: 8px 18px;
    font-size: var(--fs-sm);
}

.btn--lg {
    min-height: 54px;
    padding: 16px 36px;
    font-size: var(--fs-md);
}

.btn--block {
    width: 100%;
}


.surface {
    background: var(--surface);
    border: 1px solid var(--hairline-soft);
    border-radius: var(--r-lg);
    box-shadow: var(--shadow-1);
}

.card {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--hairline-soft);
    border-radius: var(--r-lg);
    padding: var(--sp-6) var(--sp-5);
    box-shadow: var(--shadow-1);
    transition: transform var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2);
    border-color: var(--hairline);
}

.card__title {
    font-size: var(--fs-lg);
    font-weight: 800;
    color: var(--brown-deep);
    margin-block-end: var(--sp-2);
}

.card__text {
    color: var(--ink-2);
    font-size: var(--fs-sm);
    line-height: var(--lh-snug);
}


.frame {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--gold);
    border-radius: var(--r-md);
    padding: clamp(22px, 4vw, 44px);
    box-shadow: var(--shadow-1);
}

.frame::before {
    content: "";
    position: absolute;
    inset: 5px;
    border: 1px solid var(--hairline);
    border-radius: calc(var(--r-md) - 3px);
    pointer-events: none;
}

.frame--ink {
    background: var(--surface-ink);
    color: var(--ink-on-dark);
    border-color: var(--gold-deep);
}

.frame--ink::before {
    border-color: rgba(217, 177, 114, .32);
}


.chip {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    min-height: 42px;
    padding: 9px 20px;
    background: var(--surface);
    color: var(--ink-2);
    border: 1px solid var(--hairline);
    border-radius: var(--r);
    font-weight: 600;
    font-size: var(--fs-sm);
    transition: transform var(--dur-1) var(--ease), background var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease), color var(--dur-2) var(--ease);
}

.chip:hover {
    transform: translateY(-2px);
    border-color: var(--gold);
    color: var(--brown-deep);
}

.chip .icon {
    width: 18px;
    height: 18px;
    color: var(--gold-deep);
}

.chip--active {
    background: var(--primary-bg);
    color: var(--primary-fg);
    border-color: var(--primary-bg);
}

.chip--active .icon {
    color: var(--gold-soft);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 11px;
    border-radius: var(--r-sm);
    font-size: var(--fs-xs);
    font-weight: 700;
    background: var(--gold-glow);
    color: var(--gold-deep);
    border: 1px solid rgba(190, 144, 82, .32);
}

.divider {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    color: var(--gold);
    margin-block: var(--sp-6);
}

.divider::before, .divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--hairline);
}

.divider .diamond {
    width: 8px;
    height: 8px;
    background: var(--gold);
    transform: rotate(45deg);
    border-radius: 1px;
}


.field {
    display: flex;
    flex-direction: column;
    gap: var(--sp-2);
    margin-block-end: var(--sp-5);
}

.field > label, .form-label {
    font-weight: 700;
    color: var(--ink);
    font-size: var(--fs-sm);
}

.field .hint, .form-help {
    font-size: var(--fs-xs);
    color: var(--ink-3);
}

.input, .textarea, select,
input[type="text"], input[type="email"], input[type="url"], input[type="search"],
input[type="number"], input[type="tel"], input[type="password"], textarea {
    width: 100%;
    font-family: var(--font-ui);
    font-size: var(--fs-base);
    color: var(--ink);
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--r);
    padding: 13px 16px;
    min-height: 50px;
    transition: border-color var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease), background var(--dur-2) var(--ease);
}

textarea, .textarea {
    min-height: 140px;
    resize: vertical;
    line-height: var(--lh-snug);
}

::placeholder {
    color: var(--ink-3);
    opacity: .85;
}

.input:focus, .textarea:focus, select:focus, input:focus, textarea:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: var(--ring);
}

input:disabled, textarea:disabled, select:disabled {
    background: var(--surface-2);
    opacity: .7;
    cursor: not-allowed;
}

select {
    appearance: none;
    cursor: pointer;
    padding-inline-start: 44px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%239A6738' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: left 14px center;
}

.field--error .input, .field--error textarea, input.is-error {
    border-color: var(--danger);
    box-shadow: 0 0 0 4px rgba(180, 82, 58, .14);
}

.form-error, .errorlist {
    color: var(--danger);
    font-size: var(--fs-sm);
    font-weight: 600;
    list-style: none;
}

.form-success {
    color: var(--ok);
    font-weight: 700;
}

.input-group {
    display: flex;
    gap: var(--sp-2);
    align-items: stretch;
}

.input-group .input, .input-group input {
    flex: 1;
}

input[type="checkbox"], input[type="radio"] {
    width: 20px;
    height: 20px;
    accent-color: var(--brown);
    cursor: pointer;
}

.check {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    cursor: pointer;
}


.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--hairline-soft);
    border-radius: var(--r-lg);
    background: var(--surface);
    box-shadow: var(--shadow-1);
}

table.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--fs-sm);
}

.table th, .table td {
    padding: 14px 18px;
    text-align: start;
}

.table thead th {
    background: var(--surface-2);
    color: var(--brown-deep);
    font-weight: 800;
    border-block-end: 2px solid var(--hairline);
    white-space: nowrap;
}

.table tbody tr + tr td {
    border-block-start: 1px solid var(--hairline-soft);
}

.table tbody tr {
    transition: background var(--dur-1) var(--ease);
}

.table tbody tr:hover {
    background: var(--surface-2);
}

.pagination {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-2);
    justify-content: center;
    align-items: center;
    margin-block-start: var(--sp-7);
}

.pagination a, .pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    padding: 0 12px;
    background: var(--surface);
    border: 1px solid var(--hairline-soft);
    border-radius: var(--r);
    color: var(--ink-2);
    font-weight: 700;
    transition: all var(--dur-1) var(--ease);
}

.pagination a:hover {
    border-color: var(--gold);
    color: var(--brown-deep);
    transform: translateY(-2px);
}

.pagination .current, .pagination [aria-current="page"] {
    background: var(--primary-bg);
    color: var(--primary-fg);
    border-color: var(--primary-bg);
}

.empty-state {
    text-align: center;
    padding: var(--sp-8) var(--sp-5);
    color: var(--ink-3);
}

.empty-state .icon {
    width: 48px;
    height: 48px;
    color: var(--hairline);
    margin-inline: auto;
    margin-block-end: var(--sp-3);
}


.site-header {
    position: fixed;
    inset-block-start: 0;
    inset-inline: 0;
    z-index: var(--z-header);
    background: var(--header-bg);
    backdrop-filter: blur(16px) saturate(1.1);
    -webkit-backdrop-filter: blur(16px) saturate(1.1);
    border-block-end: 1px solid var(--hairline);
    transition: background var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease);
}

.site-header::after {
    content: "";
    position: absolute;
    inset-block-end: -1px;
    inset-inline: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    opacity: .5;
}

.site-header.scrolled {
    background: var(--header-bg-2);
    box-shadow: var(--shadow-2);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4);
    min-height: var(--header-h);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-3);
}

.brand__mark {
    width: 40px;
    height: 40px;
    flex: none;
    border-radius: var(--r-sm);
    transition: transform var(--dur-2) var(--ease-spring);
}

.brand:hover .brand__mark {
    transform: scale(1.08) rotate(-4deg);
}

.logo-dark {
    display: none;
}

[data-theme="dark"] .logo-light {
    display: none;
}

[data-theme="dark"] .logo-dark {
    display: block;
}

.pahlavi {
    color: var(--gold-deep);
    font-weight: 700;
    letter-spacing: 0.04em;
}

.brand__name {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: 1.85rem;
    line-height: 1;
    color: var(--brown-deep);
    letter-spacing: -.01em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: clamp(12px, 2vw, 28px);
}

.nav-links a {
    position: relative;
    font-weight: 600;
    color: var(--ink);
    padding: 6px 2px;
}

.nav-links a::after {
    content: "";
    position: absolute;
    inset-block-end: -3px;
    inset-inline-end: 0;
    width: 0;
    height: 2px;
    background: var(--gold);
    border-radius: 2px;
    transition: width var(--dur-2) var(--ease);
}

.nav-links a:hover {
    color: var(--brown-deep);
}

.nav-links a:hover::after, .nav-links a[aria-current="page"]::after {
    width: 100%;
}

.nav-links a[aria-current="page"] {
    color: var(--brown-deep);
}

.nav-tools {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    flex: none;
    border: 1px solid var(--hairline);
    border-radius: var(--r);
    background: var(--surface);
    color: var(--brown-deep);
    cursor: pointer;
    transition: border-color var(--dur-2) var(--ease), background var(--dur-2) var(--ease), transform var(--dur-1) var(--ease);
}

.icon-btn:hover {
    border-color: var(--gold);
    background: var(--surface-2);
    transform: translateY(-1px);
}

.icon-btn .icon {
    width: 22px;
    height: 22px;
}

.theme-toggle .icon-moon {
    display: none;
}

.theme-toggle .icon-sun {
    display: block;
}

[data-theme="dark"] .theme-toggle .icon-sun {
    display: none;
}

[data-theme="dark"] .theme-toggle .icon-moon {
    display: block;
}

.nav-toggle {
    display: none;
}

.nav-toggle .icon-close {
    display: none;
}

.nav-toggle[aria-expanded="true"] .icon-open {
    display: none;
}

.nav-toggle[aria-expanded="true"] .icon-close {
    display: block;
}

main {
    padding-block-start: var(--header-h);
    min-height: 64vh;
}

@media (max-width: 940px) {
    .nav-toggle {
        display: inline-flex;
    }

    .nav-links {
        position: absolute;
        inset-block-start: 100%;
        inset-inline: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: var(--header-bg-2);
        backdrop-filter: blur(16px);
        border-block-end: 1px solid var(--hairline);
        padding: var(--sp-3) var(--gutter) var(--sp-5);
        box-shadow: var(--shadow-2);
        clip-path: inset(0 0 100% 0);
        opacity: 0;
        pointer-events: none;
        transition: clip-path var(--dur-3) var(--ease), opacity var(--dur-2) var(--ease);
    }

    .nav-links.active {
        clip-path: inset(0 0 0 0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-links a {
        padding: 14px 4px;
        border-block-end: 1px solid var(--hairline-soft);
    }

    .nav-links a::after {
        display: none;
    }
}


.features {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: var(--sp-5);
}

.feature {
    position: relative;
    display: block;
    background: var(--surface);
    border: 1px solid var(--hairline-soft);
    border-radius: var(--r-lg);
    padding: var(--sp-6) var(--sp-5);
    box-shadow: var(--shadow-1);
    overflow: hidden;
    transition: transform var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease);
}

.feature::before {
    content: "";
    position: absolute;
    inset-block-start: 0;
    inset-inline: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gold-deep), var(--gold-soft));
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--dur-2) var(--ease);
}

.feature:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-3);
    border-color: var(--hairline);
}

.feature:hover::before {
    transform: scaleX(1);
}

.feature__icon {
    width: 54px;
    height: 54px;
    display: grid;
    place-items: center;
    color: var(--gold-deep);
    background: var(--surface-2);
    border: 1px solid var(--hairline-soft);
    border-radius: var(--r-md);
    margin-block-end: var(--sp-4);
    transition: color var(--dur-2) var(--ease), background var(--dur-2) var(--ease), transform var(--dur-2) var(--ease-spring);
}

.feature__icon .icon {
    width: 28px;
    height: 28px;
}

.feature:hover .feature__icon {
    color: var(--brown-deep);
    background: var(--gold-glow);
    transform: scale(1.06) rotate(-3deg);
}

.feature h3 {
    font-size: var(--fs-lg);
    color: var(--brown-deep);
    margin-block-end: var(--sp-2);
}

.feature p {
    color: var(--ink-2);
    font-size: var(--fs-sm);
    line-height: var(--lh-snug);
    max-width: none;
}

.mini-nav {
    margin-block-start: var(--sp-7);
}

.mini-nav__title {
    text-align: center;
    color: var(--ink-3);
    font-weight: 700;
    margin-block-end: var(--sp-4);
}

.mini-nav__row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--sp-3);
}

.mini-nav__item .pahlavi {
    font-size: 1.15rem;
    color: var(--gold-deep);
    letter-spacing: .04em;
}


.word-of-day {
    padding-block: clamp(40px, 6vw, 80px);
}

.word-of-day .frame {
    max-width: 660px;
    margin-inline: auto;
    text-align: center;
}

.word-of-day__eyebrow {
    color: var(--gold-deep);
    font-weight: 700;
}

.word-of-day__word {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: clamp(2.6rem, 7vw, 4rem);
    line-height: 1.1;
    color: var(--brown-deep);
    margin-block: var(--sp-3);
}

.word-of-day__meaning {
    color: var(--ink-2);
    font-size: var(--fs-md);
}

.word-of-day a {
    color: inherit;
}

.word-of-day a:hover .word-of-day__word {
    color: var(--gold-deep);
}


.prefooter {
    margin-block-start: var(--sp-9);
    background: var(--footer-bg);
    border-start-start-radius: clamp(22px, 4vw, 46px);
    border-start-end-radius: clamp(22px, 4vw, 46px);
    position: relative;
    box-shadow: 0 -18px 40px -28px rgba(74, 48, 22, .35);
}

.prefooter::before {
    content: "";
    position: absolute;
    inset-block-start: 0;
    inset-inline: 10%;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, transparent, var(--footer-accent), transparent);
    background-size: 220% 100%;
    animation: footer-sheen 6s linear infinite;
}

@keyframes footer-sheen { to { background-position: -220% 0; } }

.prefooter__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--sp-2) var(--sp-4);
    padding-block: var(--sp-5);
}

.prefooter__label { color: var(--footer-muted); font-size: var(--fs-sm); font-weight: 700; }

.prefooter__list { list-style: none; display: flex; flex-wrap: wrap; justify-content: center; gap: var(--sp-2); }

.site-footer {
    background: var(--footer-bg);
    color: var(--footer-fg-2);
    padding-block: var(--sp-7) 0;
}

.site-footer a { color: var(--footer-fg-2); }
.site-footer a:hover { color: var(--footer-accent); }

.prefooter__list a {
    display: inline-flex;
    padding: 7px 16px;
    border: 1px solid var(--footer-chip-border);
    background: var(--footer-chip);
    border-radius: var(--r-sm);
    font-size: var(--fs-sm);
    font-weight: 600;
    transition: all var(--dur-1) var(--ease);
}

.prefooter__list a:hover { border-color: var(--footer-accent); transform: translateY(-2px); }

.social { display: flex; gap: var(--sp-2); }

.social a {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    color: var(--footer-social);
    background: var(--footer-chip);
    border: 1px solid var(--footer-chip-border);
    border-radius: var(--r);
    transition: transform var(--dur-1) var(--ease), background var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease), color var(--dur-2) var(--ease);
}

.social a:hover { transform: translateY(-3px); border-color: var(--footer-accent); color: var(--footer-accent); }

.social .icon { width: 22px; height: 22px; }

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: var(--sp-6) var(--sp-5);
    padding-block-end: var(--sp-7);
}

.footer-brand { display: flex; flex-direction: column; gap: var(--sp-3); align-items: flex-start; }

.footer-brand__id { display: inline-flex; align-items: center; gap: var(--sp-2); }

.footer-brand__logo { width: 44px; height: 44px; }

.footer-brand__name { font-family: var(--font-display); font-weight: 700; font-size: 1.7rem; color: var(--footer-fg); }

.footer-brand__tag { color: var(--footer-muted); font-size: var(--fs-sm); line-height: var(--lh-snug); max-width: 34ch; }

.footer-col { display: flex; flex-direction: column; gap: var(--sp-2); }

.footer-col__title { color: var(--footer-fg); font-size: var(--fs-base); font-weight: 800; margin-block-end: var(--sp-1); }

.footer-col a { font-size: var(--fs-sm); font-weight: 600; width: fit-content; transition: color var(--dur-1) var(--ease), transform var(--dur-1) var(--ease); }

.footer-col a:hover { transform: translateX(-4px); }

.footer-app p { color: var(--footer-muted); font-size: var(--fs-sm); margin-block-end: var(--sp-1); }

/* ورودِ نرمِ ستون‌های پابرگ (ایمن: پیش‌فرض نمایان) */
.site-footer.reveal-ready .footer-grid > * { animation: fade-up .6s var(--ease-out) backwards; }
.site-footer.reveal-ready .footer-col:nth-child(2) { animation-delay: .08s; }
.site-footer.reveal-ready .footer-col:nth-child(3) { animation-delay: .14s; }
.site-footer.reveal-ready .footer-col:nth-child(4) { animation-delay: .2s; }

.footer-bar {
    border-block-start: 1px solid var(--footer-border);
    padding-block: var(--sp-4);
}

.footer-bar__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-2);
    font-size: var(--fs-sm);
    color: var(--footer-muted);
}

.footer-bar__made { opacity: .82; }

@media (max-width: 900px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .footer-brand { align-items: center; text-align: center; }
    .footer-brand__tag { max-width: none; }
    .footer-col { align-items: center; }
    .footer-col a:hover { transform: none; }
    .footer-bar__inner { justify-content: center; text-align: center; }
    .social { justify-content: center; }
}


.cookie-popup, .app-banner {
    position: fixed;
    z-index: var(--z-toast);
    background: var(--popup-bg);
    color: var(--popup-fg);
    border: 1px solid var(--gold-deep);
    border-radius: var(--r-lg);
    box-shadow: var(--shadow-3);
}

.cookie-popup {
    inset-block-end: 20px;
    inset-inline-start: 50%;
    transform: translateX(50%);
    width: min(92%, 430px);
    padding: var(--sp-5);
    text-align: center;
    display: none;
}

.cookie-popup p {
    font-size: var(--fs-sm);
    color: var(--ink-on-dark-2);
    margin-block-end: var(--sp-3);
    max-width: none;
}

.app-banner {
    inset-block-end: 20px;
    inset-inline-start: 20px;
    display: none;
    align-items: center;
    justify-content: center;
    gap: var(--sp-4);
    padding: 12px 12px 12px 20px;
}

.app-banner span {
    font-size: var(--fs-sm);
    color: var(--ink-on-dark);
}

.app-banner .banner-buttons {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
}

.app-banner .close-btn {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    background: transparent;
    border: 1px solid rgba(217, 177, 114, .28);
    border-radius: var(--r-sm);
    color: var(--ink-on-dark-2);
    cursor: pointer;
    transition: all var(--dur-1) var(--ease);
}

.app-banner .close-btn:hover {
    color: var(--gold-soft);
    border-color: var(--gold);
}

.app-banner .close-btn .icon {
    width: 18px;
    height: 18px;
}

@media (max-width: 520px) {
    .app-banner {
        inset-inline: 12px;
        inset-block-end: 12px;
    }
}


.ad-slot:not(:empty) {
    max-width: 1000px;
    margin: var(--sp-6) auto;
    padding-inline: var(--gutter);
}


.pas-preloader {
    position: fixed;
    inset: 0;
    z-index: var(--z-overlay);
    display: grid;
    place-items: center;
    background: var(--paper);
    transition: opacity var(--dur-3) var(--ease), visibility var(--dur-3) var(--ease);
}

.pas-preloader__inner {
    position: relative;
    display: grid;
    place-items: center;
    gap: var(--sp-4);
}

.pas-preloader__ring {
    position: absolute;
    top: -17px;
    inset-inline-start: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 2px solid var(--gold-soft);
    opacity: .55;
    animation: pulse-ring 1.5s var(--ease-out) infinite;
}

.pas-preloader__seal {
    width: 86px;
    height: 86px;
    animation: seal-in .6s var(--ease-out) both;
}

.pas-preloader__word {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: 1.7rem;
    color: var(--brown-deep);
    opacity: 0;
    animation: seal-in .5s var(--ease-out) .3s both;
}

body.is-ready .pas-preloader {
    opacity: 0;
    visibility: hidden;
}

@keyframes pulse-ring {
    0% {
        transform: translateX(-50%) scale(.72);
        opacity: .55;
    }
    100% {
        transform: translateX(-50%) scale(1.2);
        opacity: 0;
    }
}

@keyframes seal-in {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: none;
    }
}

.reveal-load {
    opacity: 0;
    transform: translateY(18px);
}

body.is-ready .reveal-load {
    animation: fade-up .7s var(--ease-out) forwards;
}

body.is-ready .reveal-load:nth-child(2) {
    animation-delay: .08s;
}

body.is-ready .reveal-load:nth-child(3) {
    animation-delay: .16s;
}

body.is-ready .reveal-load:nth-child(4) {
    animation-delay: .24s;
}

body.is-ready .reveal-load:nth-child(5) {
    animation-delay: .32s;
}

[data-reveal] {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
}

[data-reveal].in-view {
    opacity: 1;
    transform: none;
}

[data-reveal].d1 {
    transition-delay: .09s;
}

[data-reveal].d2 {
    transition-delay: .18s;
}

[data-reveal].d3 {
    transition-delay: .27s;
}

[data-reveal].d4 {
    transition-delay: .36s;
}

@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
    to {
        opacity: 1;
        transform: none;
    }
}

@keyframes float-soft {
    0%, 100% {
        transform: translateY(0)
    }
    50% {
        transform: translateY(-14px)
    }
}

@keyframes shimmer {
    100% {
        background-position-x: -200%;
    }
}

.skeleton {
    background: linear-gradient(90deg, var(--surface-2) 25%, var(--paper-2) 37%, var(--surface-2) 63%);
    background-size: 200% 100%;
    animation: shimmer 1.4s infinite linear;
    border-radius: var(--r);
}


.icon {
    width: 24px;
    height: 24px;
    display: inline-block;
    vertical-align: middle;
    stroke-width: 2;
}

.flow > * + * {
    margin-block-start: var(--sp-4);
}

.text-center {
    text-align: center;
}

.cluster {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-3);
    align-items: center;
}

.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: fixed;
    inset-block-start: 8px;
    inset-inline-start: 50%;
    transform: translate(50%, -160%);
    z-index: var(--z-toast);
    background: var(--primary-bg);
    color: var(--primary-fg);
    padding: 10px 18px;
    border-radius: var(--r);
    font-weight: 700;
    transition: transform var(--dur-2) var(--ease);
}

.skip-link:focus {
    transform: translate(50%, 0);
    color: var(--primary-fg);
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
    }

    .reveal-load, [data-reveal] {
        opacity: 1 !important;
        transform: none !important;
    }

    .pas-preloader {
        display: none !important;
    }

    .feature:hover, .card:hover, .chip:hover, .btn:hover, .social a:hover, .word-item:hover {
        transform: none !important;
    }
}

.tc {
    text-align: center;
    margin: 0 auto;
}