* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: linear-gradient(180deg, #0b1220 0%, #10192d 100%);
    color: #ffffff;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: 100%;
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 20px;
}

.small-container {
    max-width: 760px;
}

/* -------------------------------------------------------
   ШАПКА
------------------------------------------------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(11, 18, 32, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.header-inner {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.logo {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 0.02em;
}

.nav {
    display: flex;
    align-items: center;
    gap: 22px;
    flex-wrap: wrap;
}

.nav a {
    color: #c7d2e3;
    transition: 0.2s;
}

.nav a:hover {
    color: #ffffff;
}

.nav-btn {
    padding: 10px 16px;
    border-radius: 10px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.1);
}

/* -------------------------------------------------------
   ГЕРОЙ
------------------------------------------------------- */
.hero {
    padding: 72px 0 48px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 28px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(71, 156, 255, 0.15);
    border: 1px solid rgba(71, 156, 255, 0.35);
    color: #cfe5ff;
    font-size: 14px;
    margin-bottom: 20px;
}

.hero h1 {
    margin: 0 0 18px;
    font-size: 54px;
    line-height: 1.08;
    letter-spacing: -0.02em;
}

.hero-text {
    max-width: 720px;
    margin: 0 0 28px;
    font-size: 19px;
    color: #c7d2e3;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.hero-pills {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.hero-pills span {
    display: inline-block;
    padding: 9px 14px;
    border-radius: 999px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    color: #d4dceb;
    font-size: 14px;
}

/* -------------------------------------------------------
   ОБЩИЕ КАРТОЧКИ
------------------------------------------------------- */
.hero-card,
.card,
.demo-main,
.demo-side,
.notice-box,
.upload-card,
.result-page-card,
.result-block,
.info-box {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.25);
}

.hero-card {
    padding: 24px;
}

.hero-card-top {
    font-size: 14px;
    color: #c7d2e3;
    margin-bottom: 16px;
}

.wave-box {
    height: 130px;
    border-radius: 16px;
    margin-bottom: 18px;
    background:
        linear-gradient(180deg, rgba(66,133,244,0.25), rgba(76,175,80,0.12)),
        repeating-linear-gradient(
            90deg,
            rgba(255,255,255,0.12) 0 2px,
            transparent 2px 14px
        );
    position: relative;
    overflow: hidden;
}

.wave-box::after {
    content: "";
    position: absolute;
    left: 12px;
    right: 12px;
    top: 24px;
    bottom: 24px;
    border-radius: 12px;
    background: repeating-linear-gradient(
        90deg,
        transparent 0 12px,
        rgba(95, 188, 255, 0.85) 12px 15px,
        transparent 15px 21px,
        rgba(121, 255, 214, 0.7) 21px 26px,
        transparent 26px 34px
    );
    opacity: 0.8;
}

.mini-result h3 {
    margin: 0 0 12px;
    font-size: 22px;
    line-height: 1.3;
}

.mini-result ul {
    margin: 0;
    padding-left: 20px;
    color: #c7d2e3;
}

/* -------------------------------------------------------
   СЕКЦИИ
------------------------------------------------------- */
.section {
    padding: 56px 0;
}

.section-head {
    max-width: 760px;
    margin-bottom: 28px;
}

.section-head.center {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.section-head h1,
.section-head h2 {
    margin: 0 0 12px;
    font-size: 40px;
    line-height: 1.12;
    letter-spacing: -0.02em;
}

.section-head p {
    margin: 0;
    color: #c7d2e3;
    font-size: 17px;
}

/* -------------------------------------------------------
   КАРТОЧКИ x3
------------------------------------------------------- */
.cards-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.card {
    padding: 24px;
}

.card h3 {
    margin: 0 0 10px;
    font-size: 22px;
}

.card p {
    margin: 0;
    color: #c7d2e3;
}

.card-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-weight: 700;
    background: rgba(71, 156, 255, 0.18);
    border: 1px solid rgba(71, 156, 255, 0.3);
}

/* -------------------------------------------------------
   ДЕМО-РЕЗУЛЬТАТ
------------------------------------------------------- */
.demo-result {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 20px;
}

.demo-main,
.demo-side {
    padding: 24px;
}

.result-label {
    display: inline-block;
    margin-bottom: 16px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 186, 73, 0.12);
    border: 1px solid rgba(255, 186, 73, 0.24);
    color: #ffe3a6;
    font-size: 13px;
}

.demo-main h3 {
    margin: 0 0 14px;
    font-size: 34px;
    line-height: 1.15;
}

.demo-main p {
    margin: 0 0 18px;
    color: #c7d2e3;
}

.result-list {
    display: grid;
    gap: 14px;
}

.result-item {
    padding: 16px;
    border-radius: 16px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
}

.result-item strong {
    display: block;
    margin-bottom: 6px;
}

/* -------------------------------------------------------
   INFO-BOX
------------------------------------------------------- */
.info-box {
    padding: 18px;
    margin-bottom: 16px;
}

.info-box:last-child {
    margin-bottom: 0;
}

.info-title {
    color: #c7d2e3;
    font-size: 14px;
    margin-bottom: 8px;
}

.info-value {
    font-size: 22px;
    font-weight: 700;
    line-height: 1.3;
}

/* -------------------------------------------------------
   УВЕДОМЛЕНИЕ
------------------------------------------------------- */
.notice-section {
    padding-top: 20px;
}

.notice-box {
    padding: 20px 22px;
    color: #d6dfef;
    text-align: center;
}

/* -------------------------------------------------------
   CTA
------------------------------------------------------- */
.cta-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 28px;
    border-radius: 24px;
    background: linear-gradient(135deg, rgba(71, 156, 255, 0.18), rgba(120, 255, 214, 0.08));
    border: 1px solid rgba(255,255,255,0.08);
}

.cta-box h2 {
    margin: 0 0 10px;
    font-size: 36px;
}

.cta-box p {
    margin: 0;
    color: #c7d2e3;
}

/* -------------------------------------------------------
   ЗАГРУЗКА (upload.php)
------------------------------------------------------- */
.upload-card {
    padding: 30px;
}

.upload-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 24px;
}

.upload-label {
    font-weight: 700;
    font-size: 16px;
}

.upload-form input[type="file"] {
    width: 100%;
    padding: 16px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.06);
    color: #ffffff;
    cursor: pointer;
    transition: border-color 0.2s;
}

.upload-form input[type="file"]:hover {
    border-color: rgba(46, 107, 255, 0.5);
}

.upload-form input[type="file"]::file-selector-button {
    background: #2e6bff;
    color: #ffffff;
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size 6px;
    font-size: 15px;
}

/* -------------------------------------------------------
   АЛЕРТ
------------------------------------------------------- */
.alert {
    margin-top: 20px;
    padding: 16px 18px;
    border-radius: 12px;
}

.alert-error {
    background: rgba(220, 38, 38, 0.16);
    border: 1px solid rgba(220, 38, 38, 0.35);
    color: #ffd4d4;
}

/* -------------------------------------------------------
   РЕЗУЛЬТАТ (result.php)
------------------------------------------------------- */
.result-page-card {
    padding: 30px;
}

.result-page-title {
    margin: 0 0 14px;
    font-size: 40px;
    line-height: 1.15;
}

.result-page-text {
    margin: 0 0 24px;
    color: #c7d2e3;
    font-size: 17px;
}

/* Уверенность модели */
.result-confidence {
    margin: -8px 0 20px;
    color: #c7d2e3;
    font-size: 15px;
}

.result-confidence strong {
    color: #ffffff;
}

.result-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

.result-block {
    padding: 22px;
}

.result-block h3 {
    margin: 0 0 12px;
    font-size: 22px;
}

.result-block ul {
    margin: 0;
    padding-left: 20px;
    color: #c7d2e3;
}

.result-block ul li {
    margin-bottom: 6px;
    font-size: 15px;
}

.result-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.result-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

/* -------------------------------------------------------
   ТОП-3 предсказания
------------------------------------------------------- */
.result-top3 {
    margin-bottom: 24px;
    padding: 22px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.result-top3 h3 {
    margin: 0 0 16px;
    font-size: 18px;
}

.top3-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
}

.top3-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
}

.top3-item--best .top3-name {
    color: #ffffff;
    font-weight: 700;
}

.top3-name {
    flex: 0 0 260px;
    color: #c7d2e3;
}

.top3-bar-wrap {
    flex: 1;
    height: 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    overflow: hidden;
}

.top3-bar {
    display: block;
    height: 100%;
    border-radius: 999px;
    background: #2e6bff;
    transition: width 0.4s ease;
}

.top3-item--best .top3-bar {
    background: linear-gradient(90deg, #2e6bff, #5bc8ff);
}

.top3-pct {
    flex: 0 0 48px;
    text-align: right;
    font-weight: 700;
    color: #ffffff;
}

/* -------------------------------------------------------
   КНОПКИ
------------------------------------------------------- */
.btn {
    display: inline-block;
    padding: 14px 22px;
    border-radius: 12px;
    font-weight: 700;
    transition: 0.2s ease;
    border: 1px solid transparent;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: #2e6bff;
    color: #ffffff;
}

.btn-primary:hover {
    background: #255ae0;
}

.btn-secondary {
    background: rgba(255,255,255,0.06);
    color: #ffffff;
    border-color: rgba(255,255,255,0.1);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
}

.btn-large {
    padding: 16px 26px;
    font-size: 16px;
}

.btn-full {
    width: 100%;
    text-align: center;
}

/* -------------------------------------------------------
   УТИЛИТЫ
------------------------------------------------------- */
.center {
    text-align: center;
}

.mt-24 {
    margin-top: 24px;
}

/* -------------------------------------------------------
   ПОДВАЛ
------------------------------------------------------- */
.site-footer {
    padding: 28px 0 40px;
    border-top: 1px solid rgba(255,255,255,0.08);
    text-align: center;
    color: #94a3b8;
}

/* -------------------------------------------------------
   АДАПТИВ 980px
------------------------------------------------------- */
@media (max-width: 980px) {
    .hero-grid,
    .demo-result,
    .cards-3,
    .result-grid-2,
    .result-stats,
    .cta-box {
        grid-template-columns: 1fr;
        display: grid;
    }

    .cta-box {
        justify-content: stretch;
    }

    .hero h1 {
        font-size: 42px;
    }

    .demo-main h3,
    .result-page-title {
        font-size: 32px;
    }

    .section-head h1,
    .section-head h2 {
        font-size: 34px;
    }
}

/* -------------------------------------------------------
   АДАПТИВ 760px
------------------------------------------------------- */
@media (max-width: 760px) {
    .header-inner {
        flex-direction: column;
        align-items: flex-start;
        padding: 14px 0;
    }

    .nav {
        gap: 12px;
    }

    .hero {
        padding-top: 40px;
    }

    .hero h1 {
        font-size: 34px;
    }

    .hero-text {
        font-size: 17px;
    }

    .section-head h1,
    .section-head h2 {
        font-size: 28px;
    }

    .demo-main h3,
    .result-page-title {
        font-size: 28px;
    }

    .result-actions,
    .hero-actions {
        flex-direction: column;
    }

    .btn,
    .btn-large {
        width: 100%;
        text-align: center;
    }

    .upload-card,
    .result-page-card,
    .card,
    .hero-card,
    .demo-main,
    .demo-side,
    .info-box,
    .notice-box {
        padding: 20px;
    }

    .top3-name {
        flex: 0 0 160px;
    }

    .result-top3 {
        padding: 16px;
    }
}