/* =========================================
   MAIN STYLES - 4HYPER-X CLONE
   ========================================= */

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--light-text);
    margin-bottom: var(--space-md);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--space-md);
    color: var(--gray-text);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--space-md);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--border-radius-large);
    font-weight: 600;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: var(--transition-slow);
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: var(--light-text);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(66, 65, 240, 0.5);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: var(--light-text);
    box-shadow: var(--shadow-medium);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(232, 199, 66, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--light-text);
    border-color: var(--light-text);
}

.btn-outline:hover {
    background: var(--light-text);
    color: var(--dark-bg);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.1);
    color: var(--light-text);
    backdrop-filter: blur(10px);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Cards */
.card {
    background: var(--gradient-card);
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    box-shadow: var(--shadow-medium);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-normal);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-large);
    border-color: var(--primary-color);
}

.card-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-md);
    color: var(--light-text);
}

.card-text {
    color: var(--gray-text);
    margin-bottom: var(--space-md);
}

/* Sections */
.section {
    padding: var(--space-xxl) 0;
}

.section-title {
    text-align: center;
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-xxl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: var(--font-size-xl);
    color: var(--gray-text);
    margin-bottom: var(--space-xl);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

/* Flex Utilities */
.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-column {
    display: flex;
    flex-direction: column;
}

.flex-wrap {
    flex-wrap: wrap;
}

.flex-1 {
    flex: 1;
}

/* Spacing Utilities */
.m-0 { margin: 0; }
.m-1 { margin: var(--space-xs); }
.m-2 { margin: var(--space-sm); }
.m-3 { margin: var(--space-md); }
.m-4 { margin: var(--space-lg); }
.m-5 { margin: var(--space-xl); }

.p-0 { padding: 0; }
.p-1 { padding: var(--space-xs); }
.p-2 { padding: var(--space-sm); }
.p-3 { padding: var(--space-md); }
.p-4 { padding: var(--space-lg); }
.p-5 { padding: var(--space-xl); }

/* Text Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-accent { color: var(--accent-color); }
.text-white { color: var(--light-text); }
.text-gray { color: var(--gray-text); }

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }
.text-4xl { font-size: var(--font-size-4xl); }

.font-thin { font-weight: 100; }
.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }
.font-black { font-weight: 900; }

/* Background Utilities */
.bg-primary { background: var(--primary-color); }
.bg-secondary { background: var(--secondary-color); }
.bg-accent { background: var(--accent-color); }
.bg-dark { background: var(--dark-bg); }
.bg-dark-secondary { background: var(--dark-secondary); }
.bg-dark-tertiary { background: var(--dark-tertiary); }

.bg-gradient-primary { background: var(--gradient-primary); }
.bg-gradient-secondary { background: var(--gradient-secondary); }
.bg-gradient-dark { background: var(--gradient-dark); }

/* Border Utilities */
.border { border: 1px solid rgba(255, 255, 255, 0.1); }
.border-primary { border: 1px solid var(--primary-color); }
.border-secondary { border: 1px solid var(--secondary-color); }

.rounded { border-radius: var(--border-radius); }
.rounded-sm { border-radius: var(--border-radius-small); }
.rounded-lg { border-radius: var(--border-radius-large); }
.rounded-full { border-radius: 50%; }

/* Shadow Utilities */
.shadow-sm { box-shadow: var(--shadow-small); }
.shadow { box-shadow: var(--shadow-medium); }
.shadow-lg { box-shadow: var(--shadow-large); }
.shadow-glow { box-shadow: var(--shadow-glow); }

/* Position Utilities */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* Display Utilities */
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.grid { display: grid; }

/* Overflow Utilities */
.overflow-hidden { overflow: hidden; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-y-hidden { overflow-y: hidden; }

/* Transition Utilities */
.transition { transition: var(--transition-normal); }
.transition-fast { transition: var(--transition-fast); }
.transition-slow { transition: var(--transition-slow); }

/* Hover Effects */
.hover-lift:hover {
    transform: translateY(-4px);
}

.hover-scale:hover {
    transform: scale(1.05);
}

.hover-glow:hover {
    box-shadow: var(--shadow-glow);
}

/* Loading */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Animations */
.animate-fadeIn {
    animation: fadeIn 0.5s ease-in-out;
}

.animate-slideInLeft {
    animation: slideInLeft 0.5s ease-in-out;
}

.animate-slideInRight {
    animation: slideInRight 0.5s ease-in-out;
}

.animate-slideInUp {
    animation: slideInUp 0.5s ease-in-out;
}

.animate-bounce {
    animation: bounce 2s infinite;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-30px);
    }
    60% {
        transform: translateY(-15px);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

/* Demo Banner */
.demo-banner {
    width: 100%;
    background: linear-gradient(90deg, #e8c742 0%, #ffd700 100%);
    color: #222;
    text-align: center;
    font-weight: bold;
    padding: 20px 0;
    font-size: 1.1rem;
    letter-spacing: 1px;
    z-index: 9999;
    position: fixed;
    top: 80px;
    left: 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
body {
    font-family: 'Kanit', sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background: #0a0a0a;
    overflow-x: hidden;
    padding-top: 48px; /* ปรับให้เนื้อหาไม่โดนแบนเนอร์ทับ */
    margin: 0;
    min-height: 100vh;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    body {
        padding-top: 70px;
        padding-bottom: 85px; /* เพิ่ม padding สำหรับเมนูล่าง */
    }
}

@media (max-width: 480px) {
    body {
        padding-top: 65px;
        padding-bottom: 80px;
    }
}

@media (max-width: 360px) {
    body {
        padding-top: 60px;
        padding-bottom: 75px;
    }
}

/* ป้องกันเมนูล่างซ้อนกับเนื้อหา */
.footer {
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .footer {
        margin-bottom: 85px;
    }
}

@media (max-width: 480px) {
    .footer {
        margin-bottom: 80px;
    }
}

@media (max-width: 360px) {
    .footer {
        margin-bottom: 75px;
    }
}