:root {
    /* ========================================
       ОСНОВНАЯ ПАЛИТРА
    ======================================== */

    --color-primary: #47c2c0;
    --color-primary-hover: #36a9a7;
    --color-primary-light: #e7f8f8;
    --color-primary-soft: rgba(71, 194, 192, 0.12);

    /* ========================================
       ДОПОЛНИТЕЛЬНЫЕ АКЦЕНТЫ
    ======================================== */

    --color-secondary: #5c7cfa;
    --color-secondary-hover: #4c6ef5;

    --color-success: #2fbf71;
    --color-warning: #ffb547;
    --color-danger: #ff6b6b;
    --color-info: #4dabf7;

    /* ========================================
       ФОНЫ
    ======================================== */

    --color-bg: #f5f7fb;
    --color-surface: #ffffff;
    --color-surface-secondary: #f8fafc;

    --color-card: #ffffff;
    --color-card-hover: #fcfcfd;

    /* ========================================
       ТЕКСТ
    ======================================== */

    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-text-light: #94a3b8;

    /* ========================================
       ГРАНИЦЫ
    ======================================== */

    --color-border: #e2e8f0;
    --color-border-light: #eef2f7;

    /* ========================================
       ТЕНИ
    ======================================== */

    --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);

    /* ========================================
       BOOTSTRAP 5 OVERRIDES
    ======================================== */

    --bs-primary: #47c2c0;
    --bs-primary-rgb: 71, 194, 192;

    --bs-secondary: #5c7cfa;
    --bs-secondary-rgb: 92, 124, 250;

    --bs-success: #2fbf71;
    --bs-success-rgb: 47, 191, 113;

    --bs-danger: #ff6b6b;
    --bs-danger-rgb: 255, 107, 107;

    --bs-warning: #ffb547;
    --bs-warning-rgb: 255, 181, 71;

    --bs-info: #4dabf7;
    --bs-info-rgb: 77, 171, 247;

    --bs-body-bg: #f5f7fb;
    --bs-body-color: #1e293b;

    --bs-border-color: #e2e8f0;

    --bs-link-color: #47c2c0;
    --bs-link-hover-color: #36a9a7;

    --bs-primary-bg-subtle: rgba(71, 194, 192, 0.12);
    --bs-primary-border-subtle: rgba(71, 194, 192, 0.24);
}

/* ========================================
   BASE
======================================== */

body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: Inter, sans-serif;
}

.section-title {
    color: var(--color-text);
    font-weight: 800;
}

.section-subtitle {
    color: var(--color-text-secondary);
}

/* ========================================
   BUTTONS
======================================== */

.btn-primary {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background: var(--color-primary-hover) !important;
    border-color: var(--color-primary-hover) !important;
}

.btn-outline-primary {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline-primary:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

/* ========================================
   CARDS
======================================== */

.card,
.problem-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    box-shadow: var(--shadow-sm);
    transition: .25s ease;
}

.card:hover,
.problem-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.problem-icon {
    width: 72px;
    height: 72px;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: 22px;

    background: var(--color-primary-soft);
    color: var(--color-primary);

    font-size: 30px;
}

/* ========================================
   TAGS
======================================== */

.problem-tags span {
    background: var(--color-surface-secondary);
    border: 1px solid var(--color-border-light);
    color: var(--color-text-secondary);

    border-radius: 999px;
    padding: 7px 14px;

    font-size: .9rem;
    font-weight: 500;
}

/* ========================================
   HERO BLOCK
======================================== */

.hero-badge {
    background: var(--color-primary-soft);
    color: var(--color-primary);

    border-radius: 999px;
    padding: 10px 18px;

    font-weight: 600;
}

/* ========================================
   STATS
======================================== */

.stats-box {
    background: linear-gradient(
        135deg,
        var(--color-primary),
        #5cd6d4
    );

    color: white;

    border-radius: 32px;

    box-shadow: var(--shadow-lg);
}

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

.bottom-nav {
    background: rgba(255, 255, 255, .9);
    backdrop-filter: blur(12px);

    border: 1px solid rgba(255, 255, 255, .6);

    box-shadow: var(--shadow-md);
}

.bottom-nav .nav-item {
    color: var(--color-text-light);
}

.bottom-nav .nav-item.active {
    background: var(--color-primary-soft);
    color: var(--color-primary);
}

/* ========================================
   INPUTS
======================================== */

.form-control,
.form-select {
    border-radius: 16px;
    border: 1px solid var(--color-border);
    padding: 12px 16px;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 .25rem rgba(71, 194, 192, 0.18);
}

/* ========================================
   ALERTS
======================================== */

.alert-primary {
    background: var(--color-primary-soft);
    border-color: rgba(71, 194, 192, 0.2);
    color: var(--color-primary-hover);
}

/* ========================================
   CUSTOM SCROLLBAR
======================================== */

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #edf2f7;
}

::-webkit-scrollbar-thumb {
    background: rgba(71, 194, 192, 0.55);
    border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}