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

:root {
    /* Color Palette - Dark Theme (1Win Style) */
    --color-bg-body: #0f1923;
    --color-bg-card: #1c2530;
    --color-bg-card-hover: #252f3c;
    
    --color-primary: #1e90ff; /* Electric Blue */
    --color-primary-dark: #0069d9;
    --color-accent: #ffc107; /* Gold/Yellow for CTA */
    --color-accent-hover: #e0a800;
    
    --color-text-main: #ffffff;
    --color-text-muted: #aab4be;
    --color-text-dark: #121212;
    
    --color-success: #28a745;
    --color-border: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-family-base: 'Inter', system-ui, -apple-system, sans-serif;
    --font-size-base: 1rem;
    --line-height-base: 1.6;

    /* Spacing & Layout */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 1rem;
    --container-width: 75rem; /* ~1200px */

    /* Effects */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.4);
    --shadow-neon: 0 0 15px rgba(30, 144, 255, 0.4);
    --transition-base: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

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

/* =========================================
   2. Layout & Utilities
   ========================================= */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
}

.row-center {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

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

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

/* Helper for spacing */
.text-center > div {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

/* =========================================
   3. Header & Navigation
   ========================================= */
.line-menu-mobile {
    background: rgba(28, 37, 48, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.line-menu-mobile .row-center {
    justify-content: flex-end; /* Align buttons to right */
}

.landing-header-right-login,
.landing-header-right-reg {
    cursor: pointer;
    font-weight: 600;
    padding: 0.6rem 1.2rem;
    border-radius: var(--border-radius-md);
    transition: var(--transition-base);
    font-size: 0.9rem;
    text-align: center;
    user-select: none;
}

.landing-header-right-login {
    color: var(--color-text-main);
    background: transparent;
    border: 1px solid var(--color-border);
}

.landing-header-right-login:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-primary);
}

.landing-header-right-reg {
    background: linear-gradient(135deg, var(--color-success) 0%, #208e3b 100%);
    color: white;
    box-shadow: 0 4px 10px rgba(40, 167, 69, 0.3);
}

.landing-header-right-reg:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 14px rgba(40, 167, 69, 0.4);
}

/* =========================================
   4. Hero Section (.header-box)
   ========================================= */
.header-box {
    position: relative;
    background: linear-gradient(180deg, rgba(15, 25, 35, 0) 0%, var(--color-bg-body) 100%),
                radial-gradient(circle at center, #1e2f45 0%, #0f1923 100%);
    padding: var(--spacing-xl) 0;
    min-height: 70vh; /* Viewport height for impact */
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Decorative glowing elements */
.header-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    width: 60%;
    height: 100%;
    background: radial-gradient(circle, rgba(30, 144, 255, 0.15) 0%, transparent 70%);
    transform: translateX(-50%);
    pointer-events: none;
}

/* Overriding table layout for Flexbox */
.header-box .table {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

.header-box .ctr {
    width: 100%;
    max-width: 800px;
    padding: 0 var(--spacing-sm);
    z-index: 2;
}

.header-box h1 {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 800;
    text-transform: uppercase;
    text-align: center;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(90deg, #fff 0%, #aab4be 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.1;
    letter-spacing: -0.02em;
    text-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.text-head {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-muted);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.text-head b {
    color: var(--color-accent);
    font-weight: 700;
}

/* Promo Code Box */
.promo {
    display: inline-block;
    font-family: 'Courier New', monospace;
    font-weight: 700;
    color: var(--color-accent);
    border: 2px dashed var(--color-accent);
    padding: 0.3em 0.8em;
    border-radius: var(--border-radius-sm);
    background: rgba(255, 193, 7, 0.1);
    cursor: pointer;
    position: relative;
    transition: var(--transition-base);
}

.promo:hover {
    background: rgba(255, 193, 7, 0.2);
    transform: scale(1.05);
    box-shadow: 0 0 15px rgba(255, 193, 7, 0.3);
}

.promo::after {
    content: '📋';
    margin-left: 8px;
    font-size: 0.9em;
}

.inform-promo {
    font-size: 0.85rem;
    color: var(--color-success);
    margin-top: var(--spacing-xs);
    opacity: 0.8;
}

/* =========================================
   5. Buttons (Main CTA)
   ========================================= */
.button, .bbb {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text-dark);
    text-transform: uppercase;
    text-decoration: none;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 15px rgba(255, 193, 7, 0.4);
    cursor: pointer;
    transition: var(--transition-base);
    border: none;
    position: relative;
    overflow: hidden;
}

.button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: 0.5s;
}

.button:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(255, 193, 7, 0.6);
}

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

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

/* =========================================
   6. Content Area
   ========================================= */
.content {
    padding: var(--spacing-xl) var(--spacing-sm);
    background-color: var(--color-bg-body);
}

.content h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--color-primary);
    margin: var(--spacing-xl) 0 var(--spacing-md);
    position: relative;
    padding-bottom: var(--spacing-xs);
}

.content h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--color-accent);
    border-radius: 2px;
}

.content h3 {
    font-size: 1.25rem;
    color: var(--color-text-main);
    margin: var(--spacing-lg) 0 var(--spacing-sm);
}

.content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-muted);
    font-size: 1.05rem;
    text-align: justify;
}

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

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

.content ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

/* Images within content */
.img {
    margin: var(--spacing-lg) 0;
    width: 100%;
    display: flex;
    justify-content: center;
}

.img img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    filter: brightness(0.9);
}

.img img:hover {
    filter: brightness(1.05);
    transform: scale(1.01);
    box-shadow: var(--shadow-lg);
}

/* Lazy load initial state */
img.lazyload:not([src]) {
    visibility: hidden;
}

/* =========================================
   7. Media Queries (Responsiveness)
   ========================================= */

/* Tablet & Smaller */
@media (max-width: 992px) {
    :root {
        --container-width: 100%;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .line-menu-mobile .row-center {
        justify-content: space-between; /* Spread buttons */
    }
    
    .landing-header-right-login,
    .landing-header-right-reg {
        padding: 0.5rem 0.8rem;
        font-size: 0.8rem;
        flex: 1; /* Stretch buttons */
        margin: 0 5px;
    }

    .header-box {
        min-height: auto;
        padding: var(--spacing-xl) 0;
    }

    .header-box h1 br {
        display: none; /* Let text flow naturally */
    }

    .button {
        width: 100%; /* Full width buttons on mobile */
        padding: 1rem;
    }
    
    .content p {
        text-align: left; /* Better for reading on small screens */
    }
}

/* =========================================
   8. Animations & Effects
   ========================================= */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.content > div {
    animation: fadeIn 0.8s ease-out;
}

/* Focus styles for accessibility */
button:focus,
a:focus,
.button:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 4px;
}

/* Selection color */
::selection {
    background: var(--color-primary);
    color: #fff;
}