:root {
    /* Colors */
    --color-primary: #2289e4;
    --color-primary-dark: #1a6cb5;
    --color-primary-light: #5baef4;
    --color-accent: #00d1ff;
    --color-bg-body: #0b111a;
    --color-bg-card: #151e2b;
    --color-bg-input: #1e2837;
    --color-text-main: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-white: #ffffff;
    --color-success: #2ecc71;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    --gradient-glow: radial-gradient(circle at center, rgba(34, 137, 228, 0.2) 0%, transparent 70%);
    --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.01) 100%);

    /* Typography */
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --fs-h1: clamp(1.8rem, 5vw, 3.5rem);
    --fs-h2: clamp(1.5rem, 4vw, 2.2rem);
    --fs-body: 1rem;
    --fs-small: 0.875rem;

    /* Spacing & Sizes */
    --container-width: 1200px;
    --spacer-xs: 0.5rem;
    --spacer-sm: 1rem;
    --spacer-md: 2rem;
    --spacer-lg: 4rem;
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 2rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg-body);
    color: var(--color-text-main);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* --- Typography --- */
h1, h2, h3 {
    color: var(--color-white);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacer-sm);
}

h1 {
    font-size: var(--fs-h1);
    text-transform: uppercase;
    letter-spacing: -0.02em;
    text-align: center;
    margin-top: var(--spacer-md);
    text-shadow: 0 4px 20px rgba(34, 137, 228, 0.4);
}

h1 span {
    color: var(--color-primary);
    display: block;
    font-size: 1.2em;
}

h2 {
    font-size: var(--fs-h2);
    margin-top: var(--spacer-lg);
    border-left: 4px solid var(--color-primary);
    padding-left: var(--spacer-sm);
}

p {
    margin-bottom: var(--spacer-sm);
    color: var(--color-text-muted);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--color-primary-light);
}

/* --- Layout Utils --- */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding-left: var(--spacer-sm);
    padding-right: var(--spacer-sm);
}

.row-center {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.col-xs-12 {
    width: 100%;
    flex: 0 0 100%;
}

.text-center {
    text-align: center;
}

/* --- Header Section --- */
header.bg-bk {
    background: var(--color-bg-body);
    background-image: var(--gradient-glow);
    padding: var(--spacer-lg) 0;
    position: relative;
    overflow: hidden;
}

/* Logo Animation */
.logo {
    width: 100%;
    max-width: 12rem;
    height: auto;
    display: block;
    margin: 0 auto;
    filter: drop-shadow(0 0 10px rgba(34, 137, 228, 0.3));
    animation: fadeInDown 1s ease-out;
}

.logo path {
    transition: var(--transition-smooth);
}

.logo:hover path[fill="#fff"] {
    fill: var(--color-accent);
}

/* --- Promo Card Component --- */
.item-promo-kod {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: var(--spacer-md);
    margin: var(--spacer-md) auto;
    max-width: 800px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacer-md);
    align-items: center;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease-out 0.3s backwards;
}

.item-promo-kod::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-card);
    z-index: 0;
    pointer-events: none;
}

.item-promo-kod > div {
    position: relative;
    z-index: 1;
}

.item-title {
    font-size: var(--fs-small);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.item-title.color {
    color: var(--color-primary);
    font-weight: 700;
}

.item-text {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-white);
    margin: 0;
}

/* Copy Section */
.item-copy {
    background: rgba(0, 0, 0, 0.2);
    padding: var(--spacer-sm);
    border-radius: var(--radius-sm);
    border: 1px dashed var(--color-primary);
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: center;
}

.item-copy:hover {
    background: rgba(34, 137, 228, 0.1);
    transform: translateY(-2px);
}

.item-copy:active {
    transform: scale(0.98);
}

.item-copy p {
    font-size: 0.75rem;
    margin: 0;
    color: var(--color-text-muted);
}

.promo-text {
    display: block;
    font-family: monospace;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 0.1em;
}

/* --- Buttons --- */
.button, .button.href-site {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    background: var(--gradient-primary);
    color: var(--color-white);
    font-weight: 700;
    text-transform: uppercase;
    padding: 1rem 2.5rem;
    border-radius: var(--radius-full);
    font-size: 1rem;
    letter-spacing: 0.05em;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(34, 137, 228, 0.4);
    transition: all var(--transition-fast);
    margin: var(--spacer-md) auto;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.button::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

.button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(34, 137, 228, 0.6);
}

.button:hover::after {
    left: 100%;
}

.button:active {
    transform: translateY(-1px);
}

/* Centering button wrapper manually if needed */
.center {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* --- Content Section --- */
.content {
    padding: var(--spacer-lg) 0;
    max-width: 860px; /* Reading width */
    margin: 0 auto;
}

.content ul {
    list-style: none;
    margin-bottom: var(--spacer-md);
    padding-left: var(--spacer-md);
}

.content ul li {
    position: relative;
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    color: var(--color-text-muted);
}

.content ul li::before {
    content: '•';
    color: var(--color-primary);
    font-size: 1.5rem;
    position: absolute;
    left: 0;
    top: -0.2rem;
    line-height: 1;
}

/* Images in content */
.img {
    margin: var(--spacer-md) 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    transition: var(--transition-smooth);
}

.img img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.img:hover img {
    transform: scale(1.03);
}

/* Tables (if any hidden in content) */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacer-md);
    background: var(--color-bg-card);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

td, th {
    padding: 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    text-align: left;
}

/* --- Footer --- */
footer {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: var(--spacer-lg) 0;
    margin-top: var(--spacer-lg);
    text-align: center;
    background: #080c12;
}

footer p {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.3);
    max-width: 600px;
    margin: 0 auto;
}

/* --- Animations --- */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* --- Responsive Media Queries --- */
@media (max-width: 768px) {
    :root {
        --spacer-lg: 2.5rem;
        --spacer-md: 1.5rem;
    }

    .item-promo-kod {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
    }
    
    .item-copy {
        max-width: 100%;
    }

    h2 {
        border-left: none;
        padding-left: 0;
        text-align: center;
    }

    .button {
        width: 100%;
        max-width: 300px;
    }
}

/* Utility classes correction */
.pa-0 { padding: 0 !important; }

/* Form Styles (Generic styling just in case) */
input[type="text"], input[type="email"], select {
    width: 100%;
    padding: 0.8rem 1rem;
    background: var(--color-bg-input);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    color: var(--color-white);
    outline: none;
    transition: var(--transition-fast);
}

input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(34, 137, 228, 0.2);
}