/* =========================================================
   СВЕТ-ИИ — VIDEO
========================================================= */

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

:root {
    color-scheme: dark;
    --bg-color: #050505;
    --text-color: #fff;
    --muted-color: #888;
    --surface-color: #080808;
    --surface-hover: #151515;
    --border-color: #252525;
    --border-hover: #555;
    --subtle-color: #666;
    --faint-color: #555;
    --control-bg: #080808;
    --control-text: #fff;
    --accent-bg: #fff;
    --accent-text: #000;
    --accent-hover: #ddd;
    --header-border: #1a1a1a;
    --nav-border: #151515;
    --overlay-bg: rgba(0, 0, 0, 0.8);
}

html[data-theme="light"] {
    color-scheme: light;
    --bg-color: #f7f7f7;
    --text-color: #171717;
    --muted-color: #666;
    --surface-color: #fff;
    --surface-hover: #f0f0f0;
    --border-color: #dedede;
    --border-hover: #aaa;
    --subtle-color: #777;
    --faint-color: #888;
    --control-bg: #fff;
    --control-text: #171717;
    --accent-bg: #171717;
    --accent-text: #fff;
    --accent-hover: #333;
    --header-border: #e3e3e3;
    --nav-border: #e8e8e8;
    --overlay-bg: rgba(0, 0, 0, 0.75);
}

body {
    margin: 0;
    background: var(--bg-color);
    color: var(--text-color);
    font-family: Arial, sans-serif;
    line-height: 1.5;
    transition: background-color 0.2s, color 0.2s;
}

/* =========================================================
   HEADER
========================================================= */

.header {
    width: 100%;
    padding: 28px 6vw;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--header-border);
}

.logo {
    color: var(--text-color);
    text-decoration: none;
    font-size: 22px;
    font-weight: 800;
    letter-spacing: 2px;
}

.header-account {
    display: flex;
    align-items: center;
    gap: 24px;
}

.header-account a {
    color: var(--muted-color);
    text-decoration: none;
    font-size: 12px;
    letter-spacing: 1px;
}

.header-account a:hover {
    color: var(--text-color);
}

.header-balance {
    color: var(--text-color) !important;
}

.header-logout {
    color: var(--subtle-color) !important;
}

/* =========================================================
   NAVIGATION
========================================================= */

.services-nav {
    width: 100%;
    padding: 18px 6vw;
    display: flex;
    gap: 35px;
    border-bottom: 1px solid var(--nav-border);
}

.service-link {
    color: var(--muted-color);
    text-decoration: none;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.5px;
    transition: color 0.2s;
}

.service-link:hover,
.service-link.active {
    color: var(--text-color);
}

/* =========================================================
   MAIN
========================================================= */

main {
    width: 100%;
}

.video-section {
    width: min(900px, 88vw);
    margin: 0 auto;
    padding: 80px 0 120px;
}

/* =========================================================
   HEADING
========================================================= */

.section-heading {
    display: flex;
    gap: 28px;
    margin-bottom: 55px;
}

.section-number {
    color: var(--subtle-color);
    font-size: 14px;
    font-weight: 700;
    padding-top: 9px;
}

.section-heading h1 {
    margin: 0 0 12px;
    font-size: clamp(32px, 5vw, 58px);
    line-height: 1;
    letter-spacing: -2px;
}

.section-heading p {
    max-width: 600px;
    margin: 0;
    color: var(--muted-color);
    font-size: 15px;
}

/* =========================================================
   GENERATOR
========================================================= */

.video-generator {
    padding: 35px;
    border: 1px solid var(--border-color);
    background: var(--surface-color);
}

.generator-label {
    margin-bottom: 12px;
    color: var(--muted-color);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1.5px;
}

/* =========================================================
   UPLOAD
========================================================= */

.upload-area {
    position: relative;
    width: 100%;
    min-height: 330px;
    border: 1px dashed var(--border-hover);
    background: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    transition: border-color 0.2s, background-color 0.2s;
}

.upload-area:hover {
    border-color: var(--muted-color);
}

.upload-content {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 50px 20px;
}

.upload-icon {
    width: 55px;
    height: 55px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-hover);
    color: var(--muted-color);
    font-size: 30px;
    font-weight: 300;
}

.upload-content h3 {
    margin: 0 0 7px;
    font-size: 17px;
}

.upload-content p {
    margin: 0 0 22px;
    color: var(--muted-color);
    font-size: 12px;
}

.upload-button {
    padding: 12px 20px;
    border: 1px solid var(--border-hover);
    background: transparent;
    color: var(--text-color);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
}

.upload-button:hover {
    background: var(--accent-bg);
    color: var(--accent-text);
}

/* =========================================================
   IMAGE PREVIEW
========================================================= */

.image-preview {
    position: absolute;
    inset: 0;
}

.image-preview img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
}

.remove-image {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 34px;
    height: 34px;
    border: 1px solid #777;
    background: var(--overlay-bg);
    color: #fff;
    font-size: 22px;
    cursor: pointer;
}

.remove-image:hover {
    background: #fff;
    color: #000;
}

/* =========================================================
   PROMPT
========================================================= */

.generator-field {
    margin-top: 32px;
}

textarea {
    width: 100%;
    min-height: 130px;
    padding: 18px;
    resize: vertical;
    border: 1px solid var(--border-color);
    outline: none;
    background: var(--bg-color);
    color: var(--text-color);
    font-family: Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
}

textarea:focus {
    border-color: var(--border-hover);
}

textarea::placeholder {
    color: var(--muted-color);
}

.field-hint {
    margin-top: 8px;
    color: var(--muted-color);
    font-size: 11px;
}

/* =========================================================
   SETTINGS
========================================================= */

.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.option-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.option-button {
    padding: 12px 18px;
    border: 1px solid var(--border-color);
    background: var(--control-bg);
    color: var(--muted-color);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s, background-color 0.2s;
}

.option-button:hover {
    border-color: var(--border-hover);
    color: var(--text-color);
}

.option-button.active {
    border-color: var(--accent-bg);
    background: var(--accent-bg);
    color: var(--accent-text);
}

/* =========================================================
   PRICE
========================================================= */

.price-box {
    margin-top: 35px;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.price-label {
    display: block;
    color: var(--muted-color);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1.5px;
}

.price-description {
    display: block;
    margin-top: 5px;
    color: var(--muted-color);
    font-size: 11px;
}

.price-box strong {
    font-size: 18px;
    letter-spacing: 1px;
}

/* =========================================================
   GENERATE BUTTON
========================================================= */

.generate-button {
    width: 100%;
    margin-top: 25px;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border: none;
    background: var(--accent-bg);
    color: var(--accent-text);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 1.5px;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
}

.generate-button:hover {
    background: var(--accent-hover);
}

.generate-arrow {
    font-size: 22px;
    font-weight: 400;
}

.generator-status {
    min-height: 20px;
    margin-top: 15px;
    color: var(--muted-color);
    font-size: 12px;
    text-align: center;
}

/* =========================================================
   RESULT
========================================================= */

.video-result {
    margin-top: 70px;
}

.result-container {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
}

.result-container video {
    width: 100%;
    display: block;
}

.download-button {
    display: block;
    margin-top: 15px;
    padding: 15px;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    text-decoration: none;
    text-align: center;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    transition: background-color 0.2s, color 0.2s;
}

.download-button:hover {
    background: var(--accent-bg);
    color: var(--accent-text);
}

/* =========================================================
   FOOTER
========================================================= */

footer {
    padding: 45px 6vw;
    border-top: 1px solid var(--nav-border);
    text-align: center;
}

footer p {
    margin: 12px 0 0;
    color: var(--muted-color);
    font-size: 12px;
}

/* =========================================================
   MOBILE
========================================================= */

@media (max-width: 700px) {
    .header {
        padding: 22px 5vw;
    }

    .header-account {
        gap: 12px;
    }

    .header-account-link,
    .header-register-link,
    .header-logout {
        display: none;
    }

    .services-nav {
        padding: 15px 5vw;
        gap: 20px;
        overflow-x: auto;
    }

    .video-section {
        width: 90vw;
        padding-top: 55px;
    }

    .section-heading {
        gap: 15px;
        margin-bottom: 35px;
    }

    .section-heading h1 {
        font-size: 34px;
    }

    .section-heading p {
        font-size: 13px;
    }

    .video-generator {
        padding: 20px;
    }

    .upload-area {
        min-height: 260px;
    }

    .settings-grid {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .price-box {
        align-items: flex-start;
        gap: 15px;
    }

    .price-box strong {
        white-space: nowrap;
    }
}


/* =========================================================
   VIDEO FORMAT SELECTOR
========================================================= */

.ratio-buttons {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.ratio-button {
    min-width: 0;
    min-height: 125px;
    padding: 14px 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 7px;
    border-radius: 8px;
    letter-spacing: 0;
}

.ratio-shape {
    display: block;
    flex-shrink: 0;
    border: 2px solid var(--muted-color);
    border-radius: 3px;
    transition: border-color 0.2s, background-color 0.2s;
}

.ratio-16-9 {
    width: 48px;
    height: 27px;
}

.ratio-9-16 {
    width: 22px;
    height: 39px;
}

.ratio-1-1 {
    width: 34px;
    height: 34px;
}

.ratio-name {
    font-size: 13px;
    font-weight: 700;
}

.ratio-description {
    color: var(--muted-color);
    font-size: 10px;
    font-weight: 400;
}

.ratio-button.active .ratio-shape {
    border-color: var(--accent-text);
    background: var(--accent-bg);
}

.ratio-button.active .ratio-description {
    color: var(--accent-text);
}

@media (max-width: 400px) {
    .ratio-buttons {
        gap: 6px;
    }

    .ratio-button {
        padding: 12px 4px;
    }

    .ratio-description {
        font-size: 9px;
    }
}

/* Прогресс генерации видео */

.generator-progress {
    margin-top: 20px;
    width: 100%;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
    font-size: 14px;
}

#progressMessage {
    opacity: 0.85;
}

#progressPercent {
    font-weight: 700;
    white-space: nowrap;
    color: var(--accent-color);
}

.progress-track {
    width: 100%;
    height: 8px;
    overflow: hidden;
    border-radius: 10px;
    background: var(--border-color, #303030);
}

.progress-fill {
    width: 0%;
    height: 100%;
    border-radius: inherit;
    background: var(--accent-color, #00ff99);
    transition: width 0.7s ease;
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: "";
    position: absolute;
    top: 0;
    left: -50%;
    width: 40%;
    height: 100%;
    background: rgba(255, 255, 255, 0.35);
    transform: skewX(-20deg);
    animation: progressShimmer 1.5s infinite;
}

@keyframes progressShimmer {
    from {
        left: -50%;
    }
    to {
        left: 130%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .progress-fill {
        transition: none;
    }

    .progress-fill::after {
        animation: none;
    }
}