/*
Theme Name: TTSVoice Landing Page
Description: Theme WordPress landing page giới thiệu Discord bot TTSVoice - Chuyển text sang giọng nói miễn phí
Version: 1.0
Author: TTSVoice Team
*/

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    text-decoration: none;
    color: white;
}

/* WordPress Menu Styles */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
    padding: 0;
    align-items: center;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 0.8rem 1rem;
    display: flex;
    align-items: center;
    border-radius: 8px;
    font-weight: 500;
}

.nav-menu a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

/* Dropdown Menu Styles */
.nav-menu .menu-item-has-children > a::after {
    content: '▼';
    font-size: 0.7rem;
    margin-left: 0.5rem;
    transition: transform 0.3s ease;
}

.nav-menu .menu-item-has-children:hover > a::after {
    transform: rotate(180deg);
}

.nav-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 220px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    border-radius: 12px;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    list-style: none;
}

.nav-menu .menu-item-has-children:hover .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-menu .sub-menu li {
    width: 100%;
}

.nav-menu .sub-menu a {
    color: #333;
    padding: 0.8rem 1.2rem;
    display: flex;
    align-items: center;
    border-radius: 0;
    font-weight: 400;
    transition: all 0.2s ease;
}

.nav-menu .sub-menu a:hover {
    background-color: #f8f9fa;
    color: #667eea;
    transform: translateX(5px);
}

/* Language Switcher Specific Styles */
.nav-menu .lang-item img {
    margin-right: 0.5rem;
    border-radius: 3px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease;
}

.nav-menu .lang-item:hover img {
    transform: scale(1.1);
}

.nav-menu .current-lang > a {
    background-color: rgba(255, 255, 255, 0.15);
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-menu .current-lang > a::before {
    content: '●';
    color: #4CAF50;
    margin-right: 0.5rem;
    font-size: 0.8rem;
}

/* Enhanced Language Dropdown */
.nav-menu .pll-parent-menu-item .sub-menu {
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1), 0 5px 15px rgba(0, 0, 0, 0.08);
}

.nav-menu .pll-parent-menu-item .sub-menu::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 20px;
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid white;
}

.nav-menu .lang-item a {
    position: relative;
    overflow: hidden;
}

.nav-menu .lang-item a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.5s ease;
}

.nav-menu .lang-item:hover a::before {
    left: 100%;
}

.nav-menu .current-lang.lang-item a {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.1) 0%, rgba(76, 175, 80, 0.05) 100%);
    border-left: 3px solid #4CAF50;
}

/* CTA Button in Menu */
.nav-menu .cta-button {
    background: #ff6b6b;
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
}

.nav-menu .cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 107, 107, 0.4);
    opacity: 1;
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
    display: none;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.8rem;
    z-index: 1001;
    border-radius: 12px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.mobile-menu-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: scale(1.05);
}

.mobile-menu-toggle:active {
    transform: scale(0.95);
}

.hamburger-icon {
    display: block;
    font-size: 1.4rem;
    transition: all 0.3s ease;
    font-weight: bold;
}

.mobile-menu-toggle.active .hamburger-icon {
    transform: rotate(90deg);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    background: #ff6b6b;
    color: white;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1.1rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 107, 107, 0.3);
}

/* Features Section */
.features {
    padding: 80px 0;
    background: white;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* How to Use Section */
.how-to-use {
    padding: 80px 0;
    background: #f8f9fa;
}

.how-to-use h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.step {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    position: relative;
}

.step-number {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    margin: 0 auto 1rem;
}

.step h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.step p {
    color: #666;
}

/* Footer */
.footer {
    background: #333;
    color: white;
    padding: 40px 0;
    text-align: center;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: #fff;
}

.footer-section p,
.footer-section a {
    color: #ccc;
    text-decoration: none;
    line-height: 1.8;
}

.footer-section a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid #555;
    padding-top: 2rem;
    color: #ccc;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    /* Mobile Menu Styles */
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        gap: 0;
        padding: 1.5rem 0;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
        border-radius: 0 0 20px 20px;
        border-top: 1px solid rgba(255, 255, 255, 0.2);
    }
    
    .nav-menu.active {
        display: flex;
        animation: slideDown 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .nav-menu li {
        text-align: center;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        margin: 0 1rem;
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-menu a {
        padding: 1.2rem 1rem;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all 0.3s ease;
        color: #333;
        font-weight: 500;
        border-radius: 12px;
        margin: 0.2rem 0;
    }
    
    .nav-menu a:hover {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
    }
    
    /* Mobile Dropdown Styles */
    .nav-menu .sub-menu {
        position: static;
        background: rgba(0, 0, 0, 0.05);
        box-shadow: none;
        border-radius: 12px;
        margin: 0.5rem 0;
        padding: 0.5rem;
        opacity: 1;
        visibility: visible;
        transform: none;
    }
    
    .nav-menu .sub-menu a {
        color: #666;
        font-size: 0.9rem;
        padding: 0.8rem;
        margin: 0.1rem 0;
    }
    
    .nav-menu .sub-menu a:hover {
        background: #667eea;
        color: white;
    }
    
    .nav-menu .cta-button {
        margin: 0.5rem 1rem;
        border-radius: 25px;
        background: #ff6b6b;
        color: white;
    }
    
    .nav-menu .cta-button:hover {
        transform: translateY(-2px);
        background: #ff5252;
        box-shadow: 0 5px 15px rgba(255, 107, 107, 0.4);
    }
    
    .features-grid,
    .steps {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 0 15px;
    }
}

/* Mobile Menu Animation */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .features,
    .how-to-use {
        padding: 60px 0;
    }
}