/* ============================================
   ВЕРБАЛКОМ · инновационный интерфейс
   terminal aesthetic — phosphor green CRT
   ============================================ */

/* hidden работает поверх display: flex */
[hidden] {
    display: none !important;
}

:root {
    --term-bg: #0a0a0a;
    --term-bg-deep: #050505;
    --term-fg: #f2f2ec;
    --term-green: #5ce39a;
    --term-green-dim: #3a9669;
    --term-amber: #e8c46c;
    --term-dim: rgba(242, 242, 236, 0.5);
    --term-faint: rgba(242, 242, 236, 0.22);

    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
}

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

html, body {
    height: 100%;
    width: 100%;
}

body.term {
    background: var(--term-bg);
    color: var(--term-fg);
    font-family: var(--font-mono);
    font-size: 15px;
    line-height: 1.55;
    overflow: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

/* CRT-эффекты: тонкие сканлайны + виньетка */
.term-crt {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 100;
    background:
        repeating-linear-gradient(
            0deg,
            rgba(0, 0, 0, 0) 0px,
            rgba(0, 0, 0, 0) 2px,
            rgba(0, 0, 0, 0.035) 2px,
            rgba(0, 0, 0, 0.035) 3px
        ),
        radial-gradient(
            ellipse at center,
            transparent 60%,
            rgba(0, 0, 0, 0.3) 100%
        );
}

.term-crt::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(
        ellipse at center,
        rgba(92, 227, 154, 0.02) 0%,
        transparent 70%
    );
    animation: crt-flicker 6s infinite;
}

@keyframes crt-flicker {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.97; }
    52% { opacity: 1; }
}

/* ============================================
   Шапка
   ============================================ */

.term-head {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    gap: 1.2rem;
    padding: 0.9rem 1.6rem;
    border-bottom: 1px solid var(--term-faint);
    background: var(--term-bg-deep);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    z-index: 50;
    color: var(--term-dim);
}

.term-head__brand {
    color: var(--term-green);
    font-weight: 500;
    letter-spacing: 0.25em;
    text-decoration: none;
    transition: text-shadow 0.25s ease, opacity 0.25s ease;
}

.term-head__brand:hover {
    text-shadow: 0 0 8px rgba(92, 227, 154, 0.6);
}

.term-head__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: transparent;
    border: 1px solid var(--term-faint);
    color: var(--term-dim);
    cursor: pointer;
    padding: 0;
    transition: all 0.25s ease;
}

.term-head__btn:hover {
    color: var(--term-green);
    border-color: var(--term-green-dim);
    box-shadow: 0 0 8px rgba(92, 227, 154, 0.25);
}

/* Кнопка возврата на главную — с текстом */
.term-head__back {
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    padding: 0.35em 0.8em;
    border: 1px solid var(--term-faint);
    color: var(--term-dim);
    text-decoration: none;
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    transition: all 0.25s ease;
}

.term-head__back:hover {
    color: var(--term-green);
    border-color: var(--term-green-dim);
    box-shadow: 0 0 8px rgba(92, 227, 154, 0.2);
}

.term-head__back-arrow {
    font-size: 1.1em;
    line-height: 1;
}

.term-head__btn--pause {
    margin-left: auto;
}

.term-head__btn.is-paused .term-head__icon-pause { display: none !important; }
.term-head__btn.is-paused .term-head__icon-play  { display: block !important; }

.term-head__sep {
    color: var(--term-faint);
}

.term-head__path {
    color: var(--term-amber);
}

.term-head__status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.term-head__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--term-green);
    box-shadow: 0 0 8px var(--term-green);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.85); }
}

/* ============================================
   Главное окно
   ============================================ */

.term-screen {
    position: relative;
    height: 100vh;
    height: 100dvh;
    /* Верх — отступ от шапки.
       Низ — треть экрана: это нужно, чтобы строка ввода (которая
       появляется в потоке после реплик) визуально оказывалась
       на ⅓ от низа экрана, а не у самого футера. */
    padding: 4rem clamp(1rem, 4vw, 3rem) 33vh;
    overflow-y: auto;
    scroll-behavior: smooth;
}

.term-screen::-webkit-scrollbar {
    width: 6px;
}

.term-screen::-webkit-scrollbar-track {
    background: transparent;
}

.term-screen::-webkit-scrollbar-thumb {
    background: var(--term-faint);
}

.term-output {
    max-width: 78ch;
    margin: 0 auto;
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* Блоки вывода */

.term-line {
    margin-bottom: 0.2em;
    min-height: 1.55em;
}

.term-block {
    margin: 1.2em 0;
}

.term-block--user {
    color: var(--term-amber);
    margin-top: 0.6em;
}

.term-block--user::before {
    content: '> ';
    color: var(--term-green);
    font-weight: 500;
}

.term-block--system {
    color: var(--term-dim);
    font-style: italic;
    font-size: 0.85rem;
    border-left: 2px solid var(--term-faint);
    padding-left: 0.8em;
    margin: 0.8em 0;
}

.term-block--accent {
    color: var(--term-green);
}

.term-block--joke {
    color: var(--term-amber);
    margin: 1.2em 0;
}

/* Курсор печати */

.term-typing-cursor {
    display: inline-block;
    width: 0.5em;
    height: 1em;
    background: var(--term-green);
    vertical-align: text-bottom;
    margin-left: 1px;
    animation: blink 1s steps(2) infinite;
    box-shadow: 0 0 8px var(--term-green);
}

.term-typing-cursor--paused {
    background: var(--term-amber);
    box-shadow: 0 0 8px var(--term-amber);
    animation: blink 0.4s steps(2) infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* ============================================
   Строка ввода
   ============================================ */

.term-prompt {
    position: relative;
    max-width: 78ch;
    margin: 1.2em auto 0;
    display: flex;
    align-items: center;
    gap: 0.6em;
    padding: 0.6em 0;
    border-top: 1px dashed var(--term-faint);
}

.term-prompt__sigil {
    color: var(--term-green);
    font-weight: 500;
    text-shadow: 0 0 8px rgba(92, 227, 154, 0.5);
}

.term-prompt__input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--term-fg);
    font-family: var(--font-mono);
    font-size: inherit;
    padding: 0;
    caret-color: var(--term-green);
}

/* Когда поле в фокусе — подчёркиваем активность строки */
.term-prompt:focus-within {
    border-top-color: var(--term-green-dim);
}

/* ============================================
   Согласие + кнопка отправки
   ============================================ */

.term-consent {
    max-width: 78ch;
    margin: 1.6em auto 0;
    padding-top: 1.2em;
    border-top: 1px solid var(--term-faint);
    display: flex;
    flex-direction: column;
    gap: 1.2em;
    animation: term-fade-in 0.4s ease-out;
}

.term-consent__check {
    display: flex;
    align-items: flex-start;
    gap: 0.7em;
    cursor: pointer;
    font-size: 0.88rem;
    color: var(--term-fg);
    line-height: 1.4;
}

.term-consent__check input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.term-consent__box {
    width: 16px;
    height: 16px;
    border: 1px solid var(--term-green-dim);
    flex-shrink: 0;
    margin-top: 4px;
    position: relative;
    transition: all 0.2s ease;
}

.term-consent__check input:checked + .term-consent__box {
    background: var(--term-green);
    border-color: var(--term-green);
    box-shadow: 0 0 10px rgba(92, 227, 154, 0.5);
}

.term-consent__check input:checked + .term-consent__box::after {
    content: '✓';
    position: absolute;
    inset: 0;
    color: var(--term-bg);
    font-weight: 700;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.term-consent__label a {
    color: var(--term-green);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.term-consent__btn {
    align-self: flex-start;
    background: transparent;
    color: var(--term-green);
    border: 1px solid var(--term-green-dim);
    padding: 0.7em 1.6em;
    font-family: var(--font-mono);
    font-size: 0.88rem;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.25s ease;
}

.term-consent__btn:not(:disabled):hover {
    background: var(--term-green);
    color: var(--term-bg);
    box-shadow: 0 0 16px rgba(92, 227, 154, 0.4);
}

.term-consent__btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ============================================
   Подсказка "нажми любую клавишу"
   ============================================ */

.term-hint {
    max-width: 78ch;
    margin: 1.6em auto 0;
    font-size: 0.95rem;
    color: var(--term-green);
    letter-spacing: 0.08em;
    display: flex;
    align-items: center;
    gap: 0.7em;
    padding: 0.7em 1em;
    border-left: 2px solid var(--term-green);
    background: rgba(92, 227, 154, 0.04);
    animation: term-fade-in 0.6s ease-out;
    text-shadow: 0 0 8px rgba(92, 227, 154, 0.4);
}

.term-hint__pulse {
    color: var(--term-green);
    font-size: 1.2em;
    animation: blink 1.2s steps(2) infinite;
    text-shadow: 0 0 10px rgba(92, 227, 154, 0.7);
}

@keyframes term-fade-in {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   Кнопка «продолжай» — пульсирующая, зелёная
   ============================================ */

.term-continue {
    max-width: 78ch;
    margin: 1.6em auto 0;
    display: flex;
    justify-content: flex-start;
    animation: term-fade-in 0.4s ease-out;
}

.term-continue__btn {
    background: transparent;
    color: var(--term-green);
    border: 1px solid var(--term-green);
    padding: 0.7em 1.6em;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    animation: term-continue-pulse 1.6s ease-in-out infinite;
    transition: background 0.2s ease, color 0.2s ease;
}

.term-continue__btn::before {
    content: '▸ ';
    margin-right: 0.2em;
}

.term-continue__btn:hover {
    background: var(--term-green);
    color: var(--term-bg);
    animation: none;
    box-shadow: 0 0 16px rgba(92, 227, 154, 0.6);
}

.term-continue__btn:disabled {
    opacity: 0.4;
    cursor: default;
    animation: none;
}

@keyframes term-continue-pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(92, 227, 154, 0.5);
        text-shadow: 0 0 4px rgba(92, 227, 154, 0.4);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(92, 227, 154, 0);
        text-shadow: 0 0 12px rgba(92, 227, 154, 0.8);
    }
}

/* ============================================
   Финальная модалка
   ============================================ */

.term-modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: rgba(5, 5, 5, 0.75);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    animation: term-fade-in 0.3s ease-out;
}

.term-modal__box {
    width: 100%;
    max-width: 420px;
    background: var(--term-bg);
    border: 1px solid var(--term-green-dim);
    box-shadow: 0 0 24px rgba(92, 227, 154, 0.25);
    font-family: var(--font-mono);
    color: var(--term-fg);
    animation: term-fade-in 0.4s ease-out;
}

.term-modal__head {
    display: flex;
    align-items: center;
    gap: 0.6em;
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--term-faint);
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--term-dim);
}

.term-modal__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--term-green);
    box-shadow: 0 0 8px var(--term-green);
}

.term-modal__title {
    color: var(--term-amber);
}

.term-modal__body {
    padding: 1.4rem 1.2rem;
    font-size: 0.92rem;
    line-height: 1.5;
}

.term-modal__body p + p {
    margin-top: 0.6em;
    color: var(--term-dim);
}

.term-modal__foot {
    padding: 0 1.2rem 1.2rem;
    display: flex;
    justify-content: flex-end;
}

.term-modal__btn {
    background: transparent;
    color: var(--term-green);
    border: 1px solid var(--term-green);
    padding: 0.6em 1.6em;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 0.12em;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.term-modal__btn:hover,
.term-modal__btn:focus {
    background: var(--term-green);
    color: var(--term-bg);
    box-shadow: 0 0 14px rgba(92, 227, 154, 0.5);
    outline: none;
}

/* ============================================
   Подвал
   ============================================ */

.term-foot {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.8rem;
    padding: 0.7rem 1.6rem;
    border-top: 1px solid var(--term-faint);
    background: var(--term-bg-deep);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--term-dim);
    z-index: 50;
}

.term-foot__sep {
    color: var(--term-faint);
}

.term-foot a {
    color: var(--term-dim);
    text-decoration: none;
    border-bottom: 1px solid var(--term-faint);
    padding-bottom: 1px;
    transition: color 0.3s ease;
}

.term-foot a:hover {
    color: var(--term-green);
}

/* ============================================
   Адаптив
   ============================================ */

@media (max-width: 720px) {
    body.term {
        font-size: 13.5px;
    }

    .term-head {
        padding: 0.7rem 1rem;
        font-size: 0.65rem;
        gap: 0.6rem;
    }

    .term-head__path {
        display: none;
    }

    .term-head__back-text {
        display: none;
    }

    .term-head__back {
        padding: 0.35em 0.6em;
    }

    .term-screen {
        padding: 3rem 1rem 33vh;
    }

    .term-foot {
        font-size: 0.62rem;
        padding: 0.6rem 1rem;
        gap: 0.5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .term-crt::after,
    .term-head__dot,
    .term-typing-cursor,
    .term-hint__pulse,
    .term-continue__btn {
        animation: none !important;
    }
}