/* ============================================================
   АТИСАФ — style.css
   Дизайн-концепция «Поле» | Тёмный минимализм
   ============================================================ */

:root {
    --bg:        #0A0906;
    --bg-alt:    #0F0D0B;
    --text:      #F0EAE0;
    --accent:    #A08B5A;
    --muted:     rgba(240, 234, 224, 0.4);
    --line:      #2A2520;
    --serif:     'Cormorant Garant', Georgia, serif;
    --sans:      'Inter', system-ui, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    font-weight: 300;
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── SCROLLBAR ──────────────────────────────── */
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--line); }

/* ── LAYOUT ─────────────────────────────────── */
.container {
    max-width: 640px;
    margin: 0 auto;
    padding: 0 40px;
}

.section {
    padding: 120px 0;
}

.section-alt {
    background-color: var(--bg-alt);
}

/* ── SECTION LABEL ──────────────────────────── */
.section-label {
    font-family: var(--sans);
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.38em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 56px;
}

/* ── PROSE TEXT ─────────────────────────────── */
.prose p {
    font-size: 15px;
    font-weight: 300;
    line-height: 1.95;
    color: var(--text);
    opacity: 0.78;
    margin-bottom: 32px;
}

.prose p:last-child {
    margin-bottom: 0;
}

/* Contrast pairs: "Это не X. / Это Y." */
.stmt-pair {
    opacity: 0.9 !important;
}

/* Triple rhythm in italics */
.stmt-triple {
    font-family: var(--serif) !important;
    font-style: italic !important;
    font-size: 21px !important;
    line-height: 1.75 !important;
    opacity: 1 !important;
    color: var(--text) !important;
    letter-spacing: 0.01em;
}

/* Key declarations */
.stmt-key {
    font-family: var(--serif) !important;
    font-style: italic !important;
    font-size: 19px !important;
    line-height: 1.7 !important;
    opacity: 1 !important;
    color: var(--text) !important;
    letter-spacing: 0.02em;
}

/* ══════════════════════════════════════════════
   HERO
══════════════════════════════════════════════ */
#hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    text-align: center;
}

#particles-canvas {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-inner {
    position: relative;
    z-index: 1;
    max-width: 640px;
    padding: 80px 40px;
}

.hero-brand {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(54px, 13vw, 112px);
    letter-spacing: 0.42em;
    color: var(--text);
    margin-bottom: 36px;
    line-height: 1;
}

.hero-tagline {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(11px, 1.6vw, 14px);
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 68px;
}

.hero-body {
    margin-bottom: 72px;
}

.hero-body p {
    font-size: 15px;
    font-weight: 300;
    color: var(--text);
    opacity: 0.7;
    margin-bottom: 18px;
    line-height: 1.9;
}

.hero-key {
    font-family: var(--serif) !important;
    font-style: italic !important;
    font-size: 22px !important;
    opacity: 1 !important;
    margin-top: 44px !important;
    color: var(--text) !important;
    letter-spacing: 0.04em;
}

/* ══════════════════════════════════════════════
   CTA BUTTON
══════════════════════════════════════════════ */
.btn-cta {
    display: inline-block;
    font-family: var(--sans);
    font-size: 11px;
    font-weight: 300;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    color: var(--text);
    text-decoration: none;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(160, 139, 90, 0.45);
    transition: border-color 0.5s ease;
    cursor: pointer;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
    outline: none;
}

.btn-cta:hover {
    border-bottom-color: var(--accent);
}

button.btn-cta {
    padding: 0;
    padding-bottom: 10px;
}

/* ══════════════════════════════════════════════
   FORMATS
══════════════════════════════════════════════ */
.formats-list {
    margin-bottom: 48px;
}

.format-item {
    padding: 40px 0;
    border-bottom: 1px solid var(--line);
}

.format-item:first-child {
    border-top: 1px solid var(--line);
}

.format-name {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 20px;
    letter-spacing: 0.03em;
    color: var(--text);
    margin-bottom: 16px;
}

.format-desc {
    font-size: 14px;
    font-weight: 300;
    line-height: 1.9;
    color: var(--text);
    opacity: 0.6;
}

.formats-note {
    font-size: 11px;
    font-weight: 300;
    letter-spacing: 0.15em;
    color: var(--accent);
    opacity: 0.85;
}

/* ══════════════════════════════════════════════
   FORM
══════════════════════════════════════════════ */
.form-intro {
    margin-bottom: 56px;
}

#access-form {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.field label {
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--accent);
}

.field input,
.field textarea {
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--line);
    color: var(--text);
    font-family: var(--sans);
    font-size: 14px;
    font-weight: 300;
    padding: 14px 0;
    outline: none;
    width: 100%;
    transition: border-color 0.35s ease;
    caret-color: var(--accent);
}

.field input::placeholder,
.field textarea::placeholder {
    color: var(--muted);
    font-size: 13px;
}

.field input:focus,
.field textarea:focus {
    border-bottom-color: var(--accent);
}

.field textarea {
    resize: none;
    line-height: 1.75;
    min-height: 80px;
}

.field-submit {
    padding-top: 8px;
}

.form-success {
    margin-top: 56px;
    padding-top: 56px;
    border-top: 1px solid var(--line);
}

.form-success p {
    font-family: var(--serif);
    font-style: italic;
    font-size: 22px;
    line-height: 1.7;
    color: var(--text);
    opacity: 0.75;
}

/* ══════════════════════════════════════════════
   FINAL SECTION
══════════════════════════════════════════════ */
#final {
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 40px;
}

.final-inner {
    max-width: 560px;
}

.final-title {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(34px, 6vw, 60px);
    letter-spacing: 0.04em;
    color: var(--text);
    margin-bottom: 44px;
    line-height: 1.15;
}

.final-sub {
    font-size: 15px;
    font-weight: 300;
    color: var(--text);
    opacity: 0.65;
    line-height: 1.9;
    margin-bottom: 44px;
}

.final-note {
    font-family: var(--serif);
    font-style: italic;
    font-size: 19px;
    color: var(--text);
    opacity: 0.55;
    line-height: 1.75;
    margin-bottom: 60px;
}

/* ══════════════════════════════════════════════
   FADE-IN ANIMATION
══════════════════════════════════════════════ */
.fade-in {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 1s ease, transform 1s ease;
}

.fade-in.delay-1 { transition-delay: 0.25s; }
.fade-in.delay-2 { transition-delay: 0.5s; }
.fade-in.delay-3 { transition-delay: 0.75s; }

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ══════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════ */
/* ── Блок ориентации (без рекомендации) ── */
#no-recommendation {
    opacity: 0.9;
}

.orientation-note {
    font-size: 0.82em;
    letter-spacing: 0.08em;
    color: rgba(255,255,255,0.35);
    margin-top: 2em;
    font-style: italic;
}

.btn-orientation {
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(255,255,255,0.3);
    color: rgba(255,255,255,0.55);
    font-family: inherit;
    font-size: 0.78em;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding: 0.3em 0;
    cursor: pointer;
    transition: color 0.3s, border-color 0.3s;
}

.btn-orientation:hover {
    color: rgba(255,255,255,0.85);
    border-color: rgba(255,255,255,0.6);
}

#orientation-form {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

@media (max-width: 640px) {
    .section {
        padding: 80px 0;
    }
    .container {
        padding: 0 24px;
    }
    #final {
        padding: 80px 24px;
    }
    .hero-inner {
        padding: 80px 24px;
    }
    .hero-brand {
        letter-spacing: 0.28em;
    }
    .stmt-triple {
        font-size: 18px !important;
    }
    .stmt-key {
        font-size: 17px !important;
    }
}

/* ══════════════════════════════════════════════
   LANGUAGE SWITCHER
══════════════════════════════════════════════ */
.lang-switcher {
    position: fixed;
    top: 28px;
    right: 36px;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 6px;
}
.lang-btn {
    background: none;
    border: none;
    color: rgba(255,255,255,0.3);
    font-family: inherit;
    font-size: 0.7em;
    letter-spacing: 0.14em;
    cursor: pointer;
    padding: 0;
    transition: color 0.3s;
}
.lang-btn:hover { color: rgba(255,255,255,0.7); }
.lang-btn.active { color: rgba(255,255,255,0.75); }
.lang-sep { color: rgba(255,255,255,0.15); font-size: 0.7em; }

/* ══════════════════════════════════════════════
   DEPTH SECTION NARROW
══════════════════════════════════════════════ */
#depth .container { max-width: 600px; margin: 0 auto; }

/* ══════════════════════════════════════════════
   FINAL EXTRA
══════════════════════════════════════════════ */
.final-extra {
    font-size: 0.85em;
    letter-spacing: 0.04em;
    color: rgba(255,255,255,0.3);
    margin-top: 1.5em;
    font-style: italic;
}

/* ══════════════════════════════════════════════
   AUTHORITY SIGNAL
══════════════════════════════════════════════ */
.authority-signal {
    text-align: center;
    padding: 40px 24px 60px;
    opacity: 0.18;
    font-size: 0.72em;
    letter-spacing: 0.08em;
    line-height: 2;
}

/* ══════════════════════════════════════════════
   ORIENTATION BLOCK
══════════════════════════════════════════════ */
.orientation-section { padding: 60px 0; }

.orientation-toggle,
.orientation-deeper-toggle {
    background: none;
    border: none;
    color: rgba(255,255,255,0.3);
    font-family: inherit;
    font-size: 0.72em;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    cursor: pointer;
    padding: 0;
    display: block;
    transition: color 0.3s;
}

.orientation-toggle:hover,
.orientation-deeper-toggle:hover {
    color: rgba(255,255,255,0.6);
}

.orientation-content {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.7s ease, opacity 0.5s ease;
}

.orientation-block.open .orientation-content {
    max-height: 2000px;
    opacity: 1;
}

.orientation-text p {
    color: rgba(255,255,255,0.45);
    font-size: 0.92em;
    line-height: 2;
    margin: 20px 0;
    letter-spacing: 0.02em;
}

.orientation-deeper-toggle {
    margin-top: 32px;
    margin-bottom: 0;
    color: rgba(255,255,255,0.2);
}

.orientation-deeper {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.8s ease, opacity 0.6s ease;
    margin-top: 0;
}

.orientation-deeper.open {
    max-height: 2000px;
    opacity: 1;
    margin-top: 32px;
}

.orientation-deeper p {
    color: rgba(168,168,179,0.7);
    font-size: 0.86em;
    line-height: 2.1;
    margin: 18px 0;
    letter-spacing: 0.02em;
}

/* ══════════════════════════════════════════════
   MICRO-BRIDGES & SILENT CTAs
══════════════════════════════════════════════ */
.section-bridge {
    text-align: center;
    padding: 20px 24px 0;
}

.section-bridge p {
    color: rgba(255,255,255,0.22);
    font-size: 0.8em;
    letter-spacing: 0.1em;
    font-style: italic;
    line-height: 1.8;
}

.silent-cta {
    text-align: center;
    padding: 40px 0 0;
}

.silent-cta a,
.deeper-cta a {
    color: rgba(255,255,255,0.2);
    text-decoration: none;
    font-size: 0.72em;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 2px;
    transition: color 0.3s, border-color 0.3s;
}

.silent-cta a:hover,
.deeper-cta a:hover {
    color: rgba(255,255,255,0.5);
    border-color: rgba(255,255,255,0.3);
}

.deeper-cta {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.05);
    text-align: center;
}

.deeper-cta p {
    color: rgba(255,255,255,0.25);
    font-size: 0.82em;
    font-style: italic;
    margin-bottom: 16px;
    letter-spacing: 0.03em;
    line-height: 1.8;
}

.final-signal {
    color: rgba(255,255,255,0.25);
    font-size: 0.82em;
    font-style: italic;
    letter-spacing: 0.04em;
    margin-bottom: 32px;
}

/* ══════════════════════════════════════════════
   UX MESSAGE (behavioural triggers)
══════════════════════════════════════════════ */
.ux-message {
    position: fixed;
    bottom: 36px;
    left: 36px;
    max-width: 300px;
    background: rgba(8,8,10,0.92);
    border: 1px solid rgba(255,255,255,0.07);
    padding: 18px 22px;
    color: rgba(255,255,255,0.55);
    font-size: 0.78em;
    line-height: 1.75;
    letter-spacing: 0.03em;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.5s ease, transform 0.5s ease;
    z-index: 200;
    pointer-events: auto;
}

.ux-message.visible {
    opacity: 1;
    transform: translateY(0);
}

.ux-message p { margin: 0 0 8px; }

.ux-message a {
    color: rgba(255,255,255,0.35);
    text-decoration: none;
    font-size: 0.9em;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    border-bottom: 1px solid rgba(255,255,255,0.15);
    padding-bottom: 1px;
    transition: color 0.3s;
}

.ux-message a:hover { color: rgba(255,255,255,0.7); }

@media (max-width: 640px) {
    .ux-message {
        left: 16px;
        right: 16px;
        max-width: none;
        bottom: 20px;
    }
}