/* ============================================
   ТЕМЫ
   ============================================ */
:root {
    /* 🌌 Тёмный киберпанк (по умолчанию) */
    --bg-gradient: linear-gradient(135deg, #000000 0%, #0a0a1a 40%, #1a0033 100%);
    --text-color: #e0e0ff;
    --text-muted: #8888aa;
    --accent: #00d4ff;
    --accent-2: #a855f7;
    --card-bg: rgba(10, 10, 26, 0.7);
    --card-border: rgba(0, 212, 255, 0.15);
    --header-bg: rgba(10, 10, 26, 0.8);
    --header-border: rgba(0, 212, 255, 0.2);
    --footer-bg: rgba(5, 5, 15, 0.5);
    --input-bg: rgba(0, 0, 0, 0.5);
    --input-border: rgba(0, 212, 255, 0.3);
}

[data-theme="light"] {
    /* ☀️ Светлый минимализм */
    --bg-gradient: linear-gradient(135deg, #ffffff 0%, #f0f4ff 50%, #e0e8ff 100%);
    --text-color: #1a1a2e;
    --text-muted: #666688;
    --accent: #0066cc;
    --accent-2: #7c3aed;
    --card-bg: rgba(255, 255, 255, 0.9);
    --card-border: rgba(0, 102, 204, 0.15);
    --header-bg: rgba(255, 255, 255, 0.9);
    --header-border: rgba(0, 102, 204, 0.2);
    --footer-bg: rgba(240, 245, 255, 0.7);
    --input-bg: rgba(255, 255, 255, 0.8);
    --input-border: rgba(0, 102, 204, 0.3);
}

[data-theme="sunset"] {
    /* 🌅 Закат */
    --bg-gradient: linear-gradient(135deg, #1a0a1f 0%, #3d1a33 40%, #7c2d4a 100%);
    --text-color: #ffe0e6;
    --text-muted: #cc99aa;
    --accent: #ff6b9d;
    --accent-2: #ffa94d;
    --card-bg: rgba(40, 10, 30, 0.7);
    --card-border: rgba(255, 107, 157, 0.2);
    --header-bg: rgba(30, 10, 25, 0.8);
    --header-border: rgba(255, 107, 157, 0.25);
    --footer-bg: rgba(20, 5, 15, 0.5);
    --input-bg: rgba(0, 0, 0, 0.4);
    --input-border: rgba(255, 107, 157, 0.3);
}

[data-theme="ocean"] {
    /* 🌊 Океан */
    --bg-gradient: linear-gradient(135deg, #001a2e 0%, #003d5c 50%, #00a0b0 100%);
    --text-color: #e0f7ff;
    --text-muted: #7ab8cc;
    --accent: #00d4ff;
    --accent-2: #00ffb3;
    --card-bg: rgba(0, 30, 50, 0.7);
    --card-border: rgba(0, 212, 255, 0.2);
    --header-bg: rgba(0, 25, 45, 0.8);
    --header-border: rgba(0, 212, 255, 0.25);
    --footer-bg: rgba(0, 15, 30, 0.5);
    --input-bg: rgba(0, 0, 0, 0.4);
    --input-border: rgba(0, 212, 255, 0.3);
}

[data-theme="forest"] {
    /* 🌲 Лес */
    --bg-gradient: linear-gradient(135deg, #0a1f0a 0%, #14331a 40%, #2d5a2d 100%);
    --text-color: #e0ffe6;
    --text-muted: #99cc99;
    --accent: #4ade80;
    --accent-2: #a3e635;
    --card-bg: rgba(15, 35, 20, 0.7);
    --card-border: rgba(74, 222, 128, 0.2);
    --header-bg: rgba(10, 25, 15, 0.8);
    --header-border: rgba(74, 222, 128, 0.25);
    --footer-bg: rgba(5, 15, 10, 0.5);
    --input-bg: rgba(0, 0, 0, 0.4);
    --input-border: rgba(74, 222, 128, 0.3);
}

/* ============================================
   ОБЩИЕ НАСТРОЙКИ
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-color);
    min-height: 100vh;
    line-height: 1.5;
    overflow-x: hidden;
    transition: background 0.5s ease, color 0.3s ease;
}

a {
    color: #00d4ff;
    text-decoration: none;
    transition: color 0.3s;
}
a:hover {
    color: #a855f7;
}


/* ============================================
   ШАПКА
   ============================================ */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    background: rgba(10, 10, 26, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-logo {
    width: 40px;
    height: 40px;
    border-radius: 10px;
}

.header-title {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(90deg, #00d4ff, #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.theme-switcher {
    display: flex;
    gap: 6px;
    margin-right: 12px;
}

.theme-btn {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    width: 36px;
    height: 36px;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s;
    padding: 0;
    line-height: 1;
}

.theme-btn:hover {
    border-color: var(--accent);
    transform: scale(1.1);
}

.theme-btn.active {
    border-color: var(--accent);
    background: var(--accent);
    box-shadow: 0 0 15px var(--accent);
}

.btn-telegram {
    background: linear-gradient(90deg, #00d4ff, #0088cc);
    color: #fff !important;
    padding: 10px 20px;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}
.btn-telegram:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.5);
}


/* ============================================
   КОНТЕЙНЕР
   ============================================ */
.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 30px 20px;
}

.section-title {
    font-size: 20px;
    margin-bottom: 15px;
    color: #00d4ff;
}


/* ============================================
   КОНВЕРТЕР
   ============================================ */
.converter {
    background: rgba(10, 10, 26, 0.7);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 0 40px rgba(0, 212, 255, 0.1);
}

.converter-form {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.input, .select {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 10px;
    padding: 12px 15px;
    color: #e0e0ff;
    font-size: 16px;
    outline: none;
    transition: all 0.3s;
}

.input:focus, .select:focus {
    border-color: #00d4ff;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

.input {
    flex: 1;
    min-width: 120px;
}

.select {
    flex: 2;
    min-width: 150px;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(90deg, #a855f7, #00d4ff);
    color: #fff;
    border: none;
    border-radius: 10px;
    padding: 12px 25px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(168, 85, 247, 0.5);
}

.convert-result {
    margin-top: 15px;
    font-size: 18px;
    color: #00d4ff;
    font-weight: 600;
    min-height: 27px;
}


/* ============================================
   ПОИСК
   ============================================ */
.search-section {
    margin-bottom: 20px;
}

.search-input {
    width: 100%;
    background: rgba(10, 10, 26, 0.7);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 12px;
    padding: 15px 20px;
    color: #e0e0ff;
    font-size: 16px;
    outline: none;
    transition: all 0.3s;
}
.search-input:focus {
    border-color: #00d4ff;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}


/* ============================================
   КАТЕГОРИИ
   ============================================ */
.categories {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 25px;
}

.cat-btn {
    background: rgba(10, 10, 26, 0.7);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 12px;
    padding: 10px 18px;
    color: #e0e0ff;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
}
.cat-btn:hover {
    border-color: #00d4ff;
    background: rgba(0, 212, 255, 0.1);
}
.cat-btn.active {
    background: linear-gradient(90deg, #00d4ff, #a855f7);
    border-color: transparent;
    color: #fff;
    font-weight: 600;
}


/* ============================================
   СЕТКА ВАЛЮТ
   ============================================ */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 15px;
}

.card {
    background: rgba(10, 10, 26, 0.7);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: 14px;
    padding: 18px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}
.card:hover {
    border-color: #00d4ff;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.card-flag {
    font-size: 28px;
}

.card-code {
    font-size: 18px;
    font-weight: 700;
    color: #00d4ff;
}

.card-name {
    font-size: 13px;
    color: #8888aa;
    margin-left: auto;
    text-align: right;
}

.card-price {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    margin: 8px 0;
}

.card-price-unit {
    font-size: 13px;
    color: #8888aa;
}

.card-change {
    font-size: 14px;
    font-weight: 600;
    margin-top: 5px;
}
.card-change.up {
    color: #4ade80;
}
.card-change.down {
    color: #f87171;
}

.card-footer {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    font-size: 12px;
    color: #8888aa;
}

.loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px;
    color: #8888aa;
    font-size: 16px;
}


/* ============================================
   ПОДВАЛ
   ============================================ */
.footer {
    margin-top: 60px;
    padding: 30px 20px;
    border-top: 1px solid rgba(0, 212, 255, 0.15);
    background: rgba(5, 5, 15, 0.5);
}

.footer-content {
    max-width: 1300px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-fox {
    width: 60px;
    height: 60px;
    border-radius: 12px;
}

.footer-text {
    flex: 1;
}
.footer-text p {
    margin-bottom: 4px;
}
.footer-small {
    font-size: 12px;
    color: #666688;
}

.footer-links {
    display: flex;
    gap: 15px;
}
.footer-links a {
    font-size: 14px;
}


/* ============================================
   МОДАЛЬНОЕ ОКНО
   ============================================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 20px;
    overflow-y: auto;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: linear-gradient(135deg, #0a0a1a 0%, #1a0033 100%);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    padding: 30px;
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.3);
    animation: modalIn 0.3s ease-out;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    color: #e0e0ff;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.modal-close:hover {
    background: rgba(0, 212, 255, 0.2);
    transform: rotate(90deg);
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    padding-right: 40px;
}

.modal-flag {
    font-size: 48px;
}

.modal-title-group {
    display: flex;
    flex-direction: column;
}

.modal-code {
    font-size: 24px;
    font-weight: 700;
    color: #00d4ff;
}

.modal-name {
    font-size: 14px;
    color: #8888aa;
}

.modal-price {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin-bottom: 10px;
}

.modal-price-value {
    font-size: 32px;
    font-weight: 700;
    color: #fff;
}

.modal-price-unit {
    font-size: 14px;
    color: #8888aa;
}

.modal-change {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    min-height: 27px;
}
.modal-change.up {
    color: #4ade80;
}
.modal-change.down {
    color: #f87171;
}

.modal-periods {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.period-btn {
    background: rgba(10, 10, 26, 0.7);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 10px;
    padding: 8px 16px;
    color: #e0e0ff;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
}
.period-btn:hover {
    border-color: #00d4ff;
}
.period-btn.active {
    background: linear-gradient(90deg, #00d4ff, #a855f7);
    border-color: transparent;
    color: #fff;
    font-weight: 600;
}

.modal-chart-wrapper {
    position: relative;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 14px;
    padding: 20px;
    margin-bottom: 20px;
    min-height: 300px;
    height: 300px;
}

.modal-chart-loading,
.modal-chart-error {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #8888aa;
    font-size: 16px;
    text-align: center;
}

.modal-btn-telegram {
    display: block;
    text-align: center;
    background: linear-gradient(90deg, #00d4ff, #0088cc);
    color: #fff !important;
    padding: 14px 20px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}
.modal-btn-telegram:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.5);
}


/* ============================================
   АДАПТИВ
   ============================================ */
@media (max-width: 768px) {
    .header {
        padding: 12px 15px;
    }
    .header-title {
        font-size: 18px;
    }
    .btn-telegram {
        padding: 8px 12px;
        font-size: 13px;
    }
    .grid {
        grid-template-columns: 1fr;
    }
    .converter-form {
        flex-direction: column;
    }
    .input, .select, .btn-primary {
        width: 100%;
    }
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    .modal-content {
        padding: 20px;
    }
    .modal-flag {
        font-size: 36px;
    }
    .modal-code {
        font-size: 20px;
    }
    .modal-price-value {
        font-size: 24px;
    }
    .modal-chart-wrapper {
        height: 250px;
    }
}
/* ============================================
   МЕНЮ НАВИГАЦИИ
   ============================================ */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 25px;
    background: #0a0a1a;
    border-bottom: 1px solid #1a1a3a;
    flex-wrap: wrap;
    gap: 15px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-nav {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.nav-btn {
    padding: 10px 18px;
    border-radius: 10px;
    background: transparent;
    color: #8899bb;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.nav-btn:hover {
    color: #fff;
    background: #1a1a3a;
}

.nav-btn.active {
    background: linear-gradient(90deg, #00d4ff, #7b2fff);
    color: #fff;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.4);
}

/* ============================================
   TELEGRAM-ИКОНКА (квадрат с выезжающим текстом)
   ============================================ */
.telegram-icon {
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #0088cc, #00d4ff);
    border-radius: 12px;
    padding: 12px;
    text-decoration: none;
    color: #fff;
    transition: all 0.4s ease;
    overflow: hidden;
    max-width: 50px;
    box-shadow: 0 0 20px rgba(0, 136, 204, 0.4);
}

.telegram-icon:hover {
    max-width: 300px;
    padding-right: 20px;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.7);
}

.tg-icon {
    font-size: 20px;
    min-width: 26px;
    text-align: center;
}

.tg-text {
    white-space: nowrap;
    font-weight: 700;
    font-size: 14px;
    opacity: 0;
    transition: opacity 0.3s ease 0.1s;
    margin-left: 0;
}

.telegram-icon:hover .tg-text {
    opacity: 1;
    margin-left: 10px;
}
/* ============================================
   ШАПКА — новая версия (не дёргается)
   ============================================ */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 25px;
    background: #0a0a1a;
    border-bottom: 1px solid #1a1a3a;
    gap: 15px;
    position: relative;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.header-nav {
    display: flex;
    gap: 8px;
    flex: 1;
    justify-content: center;
}

.nav-btn {
    padding: 10px 18px;
    border-radius: 10px;
    background: transparent;
    color: #8899bb;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s;
    border: 2px solid transparent;
    white-space: nowrap;
}

.nav-btn:hover {
    color: #fff;
    background: #1a1a3a;
}

.nav-btn.active {
    background: linear-gradient(90deg, #00d4ff, #7b2fff);
    color: #fff;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.4);
}

.header-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
    flex-shrink: 0;
}

/* ============================================
   TELEGRAM — иконка + выезжающий текст
   ============================================ */
.telegram-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.telegram-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    background: linear-gradient(135deg, #0088cc, #00d4ff);
    border-radius: 12px;
    text-decoration: none;
    color: #fff;
    font-size: 20px;
    box-shadow: 0 0 20px rgba(0, 136, 204, 0.4);
    transition: box-shadow 0.3s, transform 0.3s;
    position: relative;
    z-index: 2;
}

.telegram-icon:hover {
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.8);
    transform: scale(1.05);
}

.tg-text {
    position: absolute;
    right: 55px;
    top: 50%;
    transform: translateY(-50%) translateX(15px);
    background: linear-gradient(135deg, #0088cc, #00d4ff);
    color: #fff;
    font-weight: 700;
    font-size: 13px;
    padding: 10px 16px;
    border-radius: 10px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.6);
}

.telegram-wrap:hover .tg-text {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

/* Темы — под Telegram */
.theme-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    background: #1a1a3a;
    border: 2px solid #2a2a5a;
    border-radius: 12px;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s;
}

.theme-btn:hover {
    border-color: #00d4ff;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.4);
}
.theme-picker {
    display: flex;
    gap: 6px;
    background: #1a1a3a;
    padding: 6px;
    border-radius: 12px;
}

.theme-btn {
    width: 36px;
    height: 36px;
    border: 2px solid transparent;
    border-radius: 8px;
    background: transparent;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-btn:hover { background: #2a2a5a; }
.theme-btn.active {
    border-color: #00d4ff;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.6);
}