/**
 * kkkk ph Layout CSS - Mobile-first responsive design
 * Version: 1.0.0
 * Author: kkkk ph Development Team
 */

/* CSS Variables */
:root {
    --s135-primary: #00CED1;
    --s135-secondary: #6C757D;
    --s135-accent1: #FFCCCB;
    --s135-accent2: #FFB6C1;
    --s135-dark: #1C2833;
    --s135-light: #FA8072;
    --s135-bg: #1C2833;
    --s135-surface: rgba(28, 40, 51, 0.95);
    --s135-text: #FFFFFF;
    --s135-text-muted: #B0B0B0;
    --s135-text-secondary: #6C757D;
    --s135-border: rgba(108, 117, 125, 0.2);
    --s135-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --s135-shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.2);
    --s135-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --vh: 1vh;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 62.5%;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 1.6rem;
    line-height: 1.5;
    color: var(--s135-text);
    background: linear-gradient(135deg, var(--s135-dark) 0%, #0F1A23 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

.s135-loading {
    overflow: hidden;
}

.s135-loaded {
    overflow-x: visible;
}

/* Container and Layout */
.s135-container {
    max-width: 430px;
    width: 100%;
    margin: 0 auto;
    padding: 0 1rem;
    position: relative;
}

.s135-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.s135-main {
    flex: 1;
    padding-bottom: 80px; /* Space for bottom nav */
}

/* Header Styles */
.s135-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--s135-surface);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--s135-border);
    z-index: 1000;
    transition: var(--s135-transition);
}

.s135-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.8rem 1rem;
    max-width: 430px;
    margin: 0 auto;
}

.s135-header-scrolled {
    background: rgba(28, 40, 51, 0.98);
    box-shadow: var(--s135-shadow-sm);
}

/* Logo */
.s135-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--s135-text);
}

.s135-logo img {
    width: 2.4rem;
    height: 2.4rem;
    margin-right: 0.8rem;
    border-radius: 4px;
}

.s135-logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--s135-primary);
}

/* Header Actions */
.s135-header-actions {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

/* Buttons */
.s135-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.2rem;
    font-size: 1.2rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: 0.8rem;
    cursor: pointer;
    transition: var(--s135-transition);
    position: relative;
    overflow: hidden;
    min-height: 44px;
    min-width: 44px;
    white-space: nowrap;
}

.s135-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--s135-primary), var(--s135-light));
    opacity: 0;
    transition: opacity 0.3s;
}

.s135-btn:hover::before {
    opacity: 1;
}

.s135-btn span,
.s135-btn i {
    position: relative;
    z-index: 1;
}

.s135-btn i {
    margin-right: 0.5rem;
}

.s135-btn-primary {
    background: linear-gradient(135deg, var(--s135-primary), var(--s135-light));
    color: var(--s135-dark);
    border: 2px solid var(--s135-primary);
}

.s135-btn-secondary {
    background: transparent;
    color: var(--s135-text);
    border: 2px solid var(--s135-primary);
}

.s135-btn-secondary::before {
    background: var(--s135-primary);
    opacity: 0.1;
}

.s135-btn:active {
    transform: scale(0.95);
}

/* Burger Menu */
.s135-burger-menu {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    cursor: pointer;
    transition: var(--s135-transition);
}

.s135-burger-line {
    width: 24px;
    height: 2px;
    background: var(--s135-text);
    margin: 2px 0;
    transition: var(--s135-transition);
    border-radius: 2px;
}

.s135-menu-active .s135-burger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.s135-menu-active .s135-burger-line:nth-child(2) {
    opacity: 0;
}

.s135-menu-active .s135-burger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Menu */
.s135-mobile-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 85%;
    max-width: 350px;
    height: 100vh;
    background: var(--s135-surface);
    backdrop-filter: blur(20px);
    z-index: 9999;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}

.s135-menu-open {
    left: 0;
    box-shadow: var(--s135-shadow);
}

.s135-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.2rem 1rem;
    border-bottom: 1px solid var(--s135-border);
}

.s135-menu-close {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--s135-primary);
    border: none;
    border-radius: 50%;
    color: var(--s135-dark);
    cursor: pointer;
    transition: var(--s135-transition);
}

.s135-menu-close:hover {
    background: var(--s135-light);
    transform: scale(1.1);
}

.s135-menu-nav {
    padding: 1rem 0;
}

.s135-menu-link {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    color: var(--s135-text);
    text-decoration: none;
    transition: var(--s135-transition);
    position: relative;
    overflow: hidden;
}

.s135-menu-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--s135-primary);
    transform: translateX(-100%);
    transition: transform 0.3s;
}

.s135-menu-link:hover {
    background: rgba(0, 206, 209, 0.1);
}

.s135-menu-link:hover::before {
    transform: translateX(0);
}

.s135-menu-link.active {
    background: rgba(0, 206, 209, 0.2);
    color: var(--s135-primary);
}

.s135-menu-link i {
    width: 24px;
    margin-right: 1rem;
    color: var(--s135-primary);
}

.s135-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    opacity: 0;
    animation: fadeIn 0.3s forwards;
}

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

/* Carousel */
.s135-carousel {
    position: relative;
    width: 100%;
    height: 200px;
    border-radius: 1.2rem;
    overflow: hidden;
    margin: 1rem 0;
    background: var(--s135-secondary);
}

.s135-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    cursor: pointer;
}

.s135-slide-active {
    opacity: 1;
}

.s135-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.s135-indicators {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
}

.s135-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--s135-transition);
}

.s135-indicator-active {
    background: var(--s135-primary);
    transform: scale(1.2);
}

/* Sections */
.s135-section {
    margin: 2rem 0;
    padding: 0;
}

.s135-section-title {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--s135-text);
    margin-bottom: 1.5rem;
    text-align: center;
    background: linear-gradient(135deg, var(--s135-primary), var(--s135-light));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Cards */
.s135-card {
    background: var(--s135-surface);
    backdrop-filter: blur(10px);
    border-radius: 1.2rem;
    padding: 1.5rem;
    box-shadow: var(--s135-shadow-sm);
    border: 1px solid var(--s135-border);
    margin-bottom: 1.5rem;
    transition: var(--s135-transition);
}

.s135-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--s135-shadow);
}

.s135-card-highlight {
    background: linear-gradient(135deg, rgba(0, 206, 209, 0.1), rgba(250, 128, 114, 0.1));
    border-color: var(--s135-primary);
}

.s135-card-title {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--s135-text);
    margin-bottom: 1rem;
}

.s135-card-content {
    color: var(--s135-text-muted);
    line-height: 1.6;
}

/* Text Utilities */
.s135-text-center {
    text-align: center;
}

.s135-text-left {
    text-align: left;
}

.s135-text-right {
    text-align: right;
}

.s135-text-primary {
    color: var(--s135-primary);
}

.s135-text-secondary {
    color: var(--s135-text-secondary);
}

.s135-text-muted {
    color: var(--s135-text-muted);
}

.s135-mb-1 {
    margin-bottom: 1rem;
}

.s135-mb-2 {
    margin-bottom: 1.5rem;
}

.s135-mb-3 {
    margin-bottom: 2rem;
}

.s135-mt-1 {
    margin-top: 1rem;
}

.s135-mt-2 {
    margin-top: 1.5rem;
}

.s135-mt-3 {
    margin-top: 2rem;
}

/* Game Grid */
.s135-game-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 1rem 0;
}

.s135-game-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--s135-surface);
    border-radius: 1rem;
    padding: 1rem 0.5rem;
    cursor: pointer;
    transition: var(--s135-transition);
    border: 1px solid var(--s135-border);
    min-height: 90px;
}

.s135-game-item:hover {
    background: rgba(0, 206, 209, 0.1);
    transform: scale(1.05);
    border-color: var(--s135-primary);
}

.s135-game-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    object-fit: cover;
}

.s135-game-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--s135-text);
    text-align: center;
    line-height: 1.2;
    word-break: break-word;
}

/* Accordion */
.s135-accordion {
    background: var(--s135-surface);
    border-radius: 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--s135-border);
    overflow: hidden;
}

.s135-accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.2rem;
    cursor: pointer;
    transition: var(--s135-transition);
    user-select: none;
}

.s135-accordion-header:hover {
    background: rgba(0, 206, 209, 0.05);
}

.s135-accordion-header h3 {
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--s135-text);
    margin: 0;
}

.s135-accordion-icon {
    font-size: 1.2rem;
    color: var(--s135-primary);
    transition: transform 0.3s;
}

.s135-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.s135-accordion-content-inner {
    padding: 0 1.2rem 1.2rem;
    color: var(--s135-text-muted);
    line-height: 1.6;
}

.s135-accordion-open .s135-accordion-header {
    background: rgba(0, 206, 209, 0.1);
}

/* Footer */
.s135-footer {
    background: var(--s135-surface);
    border-top: 1px solid var(--s135-border);
    padding: 2rem 0 1rem;
    margin-top: 3rem;
}

.s135-footer-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 2rem;
}

.s135-partners {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
    justify-items: center;
}

.s135-partner-logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
    opacity: 0.7;
    transition: var(--s135-transition);
}

.s135-partner-logo:hover {
    opacity: 1;
    transform: scale(1.1);
}

.s135-footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.s135-footer-link {
    color: var(--s135-text-muted);
    text-decoration: none;
    font-size: 1.2rem;
    transition: var(--s135-transition);
    text-align: center;
    padding: 0.5rem 0;
}

.s135-footer-link:hover {
    color: var(--s135-primary);
}

.s135-copyright {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid var(--s135-border);
    color: var(--s135-text-muted);
    font-size: 1.1rem;
}

/* Bottom Navigation */
.s135-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--s135-surface);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--s135-border);
    z-index: 1000;
}

.s135-bottom-nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 0.5rem 0;
    max-width: 430px;
    margin: 0 auto;
}

.s135-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--s135-text-muted);
    transition: var(--s135-transition);
    min-width: 60px;
    min-height: 60px;
    border-radius: 0.8rem;
    padding: 0.5rem;
    position: relative;
}

.s135-nav-item:hover,
.s135-nav-item.active {
    color: var(--s135-primary);
    background: rgba(0, 206, 209, 0.1);
}

.s135-nav-icon {
    font-size: 2rem;
    margin-bottom: 0.2rem;
}

.s135-nav-text {
    font-size: 1rem;
    font-weight: 500;
    line-height: 1;
}

/* Loading States */
.s135-lazy {
    filter: blur(5px);
    transition: filter 0.3s;
}

.s135-image-loaded {
    filter: blur(0);
}

.s135-image-error {
    opacity: 0.5;
}

/* Touch Feedback */
.s135-touch-active {
    transform: scale(0.95);
    opacity: 0.8;
}

/* Forms */
.s135-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.s135-form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.s135-form-label {
    font-weight: 600;
    color: var(--s135-text);
    font-size: 1.4rem;
}

.s135-form-input {
    padding: 1rem;
    border: 2px solid var(--s135-border);
    border-radius: 0.8rem;
    background: var(--s135-surface);
    color: var(--s135-text);
    font-size: 1.6rem;
    transition: var(--s135-transition);
    min-height: 44px;
}

.s135-form-input:focus {
    outline: none;
    border-color: var(--s135-primary);
    box-shadow: 0 0 0 3px rgba(0, 206, 209, 0.2);
}

.s135-form-input.error {
    border-color: var(--s135-light);
}

.s135-error-message {
    color: var(--s135-light);
    font-size: 1.2rem;
    margin-top: 0.5rem;
}

.s135-success-message {
    background: var(--s135-primary);
    color: var(--s135-dark);
    padding: 1rem;
    border-radius: 0.8rem;
    text-align: center;
    font-weight: 600;
    animation: slideInUp 0.3s ease-out;
}

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

/* Tooltips */
.s135-tooltip {
    background: var(--s135-dark);
    color: var(--s135-text);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 1.2rem;
    box-shadow: var(--s135-shadow-sm);
    z-index: 10000;
    pointer-events: none;
}

/* Responsive Design */
@media (min-width: 768px) {
    .s135-container {
        padding: 0 2rem;
    }

    .s135-burger-menu {
        display: none;
    }

    .s135-header-actions {
        gap: 1rem;
    }

    .s135-bottom-nav {
        display: none;
    }

    .s135-main {
        padding-bottom: 0;
    }

    .s135-game-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 1.5rem;
    }

    .s135-footer-links {
        grid-template-columns: repeat(4, 1fr);
    }

    .s135-partners {
        grid-template-columns: repeat(8, 1fr);
    }
}

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

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-5px);
    }
    75% {
        transform: translateX(5px);
    }
}

/* Utility Classes */
.s135-hidden {
    display: none !important;
}

.s135-visible {
    display: block !important;
}

.s135-opacity-50 {
    opacity: 0.5;
}

.s135-opacity-75 {
    opacity: 0.75;
}

/* Special Effects */
.s135-glow {
    box-shadow: 0 0 20px rgba(0, 206, 209, 0.5);
}

.s135-glow-primary {
    box-shadow: 0 0 20px rgba(0, 206, 209, 0.7);
}

.s135-shimmer {
    position: relative;
    overflow: hidden;
}

.s135-shimmer::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    100% {
        left: 100%;
    }
}