/* ===== CSS Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;background:var(--bg-light);color:var(--text-dark);line-height:1.6;overflow-x:hidden;transition:background .4s ease,color .4s ease}
a{color:var(--primary);text-decoration:none;transition:color .3s}
a:hover{color:var(--primary-dark)}
img,svg{max-width:100%;height:auto;display:block}
ul{list-style:none}
button{cursor:pointer;border:none;background:none;font-family:inherit}

/* ===== CSS Variables ===== */
:root{--primary:#e94560;--primary-dark:#c73a52;--secondary:#0f3460;--accent:#16213e;--bg-dark:#1a1a2e;--bg-light:#f8f9fa;--text-dark:#1a1a2e;--text-light:#e0e0e0;--glass-bg:rgba(255,255,255,0.1);--glass-border:rgba(255,255,255,0.2);--shadow:0 8px 32px rgba(0,0,0,0.2);--radius:20px;--transition:0.4s cubic-bezier(0.25,0.46,0.45,0.94)}

/* ===== Dark Mode ===== */
[data-theme="dark"]{--bg-light:#1a1a2e;--text-dark:#e0e0e0;--glass-bg:rgba(0,0,0,0.3);--glass-border:rgba(255,255,255,0.1)}
[data-theme="dark"] .card p,[data-theme="dark"] .section-subtitle,[data-theme="dark"] .faq-answer{color:#b0b0b0}
[data-theme="dark"] .logo span{color:#e0e0e0}

/* ===== Container ===== */
.container{max-width:1280px;margin:0 auto;padding:0 24px}

/* ===== Header & Nav ===== */
header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--glass-border);transition:var(--transition)}
nav{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;max-width:1280px;margin:0 auto}
.logo{font-size:1.8rem;font-weight:800;color:var(--primary);letter-spacing:-1px;user-select:none}
.logo span{color:var(--text-dark);transition:color .3s}
.nav-links{display:flex;gap:24px}
.nav-links a{color:var(--text-dark);font-weight:500;padding:8px 12px;border-radius:12px;transition:var(--transition);position:relative}
.nav-links a::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:0;height:2px;background:var(--primary);transition:width .3s}
.nav-links a:hover::after,.nav-links a.active::after{width:60%}
.nav-links a:hover,.nav-links a.active{background:var(--primary);color:#fff}
.nav-links a:hover::after,.nav-links a.active::after{background:#fff}
.menu-toggle{display:none;font-size:1.8rem;color:var(--text-dark);padding:4px 8px;border-radius:8px;transition:background .3s}
.menu-toggle:hover{background:var(--glass-bg)}

/* ===== Mobile Menu ===== */
.mobile-menu{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:var(--bg-light);z-index:999;flex-direction:column;align-items:center;justify-content:center;gap:24px;opacity:0;pointer-events:none;transition:var(--transition)}
.mobile-menu.open{opacity:1;pointer-events:all}
.mobile-menu a{font-size:1.5rem;color:var(--text-dark);padding:12px 24px;border-radius:12px;transition:var(--transition)}
.mobile-menu a:hover{background:var(--primary);color:#fff}
.dark-toggle{width:40px;height:40px;border-radius:50%;border:2px solid var(--glass-border);display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:var(--text-dark);transition:var(--transition)}
.dark-toggle:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ===== Breadcrumb ===== */
.breadcrumb{padding:100px 24px 20px;font-size:0.9rem;color:#666}
.breadcrumb a{color:var(--primary)}
.breadcrumb a:hover{text-decoration:underline}

/* ===== Hero Section ===== */
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--bg-dark) 0%,var(--secondary) 100%);position:relative;overflow:hidden;padding:120px 24px 80px}
.hero::before{content:'';position:absolute;width:600px;height:600px;background:radial-gradient(circle,var(--primary) 0%,transparent 70%);top:-200px;right:-200px;opacity:0.2;animation:float 8s infinite alternate}
.hero::after{content:'';position:absolute;width:400px;height:400px;background:radial-gradient(circle,var(--secondary) 0%,transparent 70%);bottom:-100px;left:-100px;opacity:0.15;animation:float 10s infinite alternate-reverse}
@keyframes float{0%{transform:translate(0,0) scale(1)}100%{transform:translate(40px,-40px) scale(1.1)}}
.hero-content{position:relative;z-index:2;text-align:center;max-width:900px}
.hero h1{font-size:clamp(2.8rem,8vw,5.5rem);font-weight:900;color:#fff;line-height:1.1;margin-bottom:24px;letter-spacing:-2px}
.hero h1 span{background:linear-gradient(135deg,var(--primary),#ff6b6b);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:1.3rem;color:var(--text-light);max-width:700px;margin:0 auto 40px;opacity:0.9}
.hero-buttons{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}
.btn{padding:16px 40px;border-radius:50px;font-weight:700;font-size:1.1rem;border:none;cursor:pointer;transition:var(--transition);display:inline-flex;align-items:center;gap:10px;position:relative;overflow:hidden}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 30px rgba(233,69,96,0.4)}
.btn-primary:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(233,69,96,0.6)}
.btn-outline{background:transparent;border:2px solid var(--glass-border);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,0.1);transform:translateY(-4px)}
.hero-slider{margin-top:60px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-slider .slide{background:var(--glass-bg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:var(--radius);padding:20px;width:200px;text-align:center;color:#fff;transition:var(--transition);animation:slideUp 0.6s ease forwards;opacity:0}
.hero-slider .slide:nth-child(1){animation-delay:0.2s}
.hero-slider .slide:nth-child(2){animation-delay:0.4s}
.hero-slider .slide:nth-child(3){animation-delay:0.6s}
@keyframes slideUp{to{opacity:1;transform:translateY(0)}}
.hero-slider .slide:hover{transform:translateY(-8px);background:rgba(233,69,96,0.2)}
.hero-slider .slide svg{width:48px;height:48px;margin:0 auto 12px}

/* ===== General Sections ===== */
.section{padding:100px 24px;transition:opacity 0.6s ease,transform 0.6s ease}
.section-title{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;text-align:center;margin-bottom:16px;letter-spacing:-1px}
.section-subtitle{text-align:center;font-size:1.1rem;color:#666;max-width:700px;margin:0 auto 60px}

/* ===== Grids ===== */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}

/* ===== Cards ===== */
.card{background:var(--glass-bg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:var(--radius);padding:32px;transition:var(--transition);box-shadow:var(--shadow)}
.card:hover{transform:translateY(-8px);box-shadow:0 16px 48px rgba(0,0,0,0.15)}
.card-icon{width:60px;height:60px;margin-bottom:20px}
.card h3{font-size:1.4rem;margin-bottom:12px}
.card p{color:#666;transition:color .3s}

/* ===== Stats ===== */
.stats{background:linear-gradient(135deg,var(--bg-dark),var(--secondary));color:#fff;padding:80px 24px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;text-align:center}
.stat-item{padding:20px}
.stat-number{font-size:3rem;font-weight:900;color:var(--primary)}
.stat-label{font-size:1rem;opacity:0.8;margin-top:8px}

/* ===== Testimonial ===== */
.testimonial{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius);padding:32px;position:relative}
.testimonial::before{content:'"';font-size:4rem;color:var(--primary);position:absolute;top:-10px;left:20px;opacity:0.2;font-family:Georgia,serif}

/* ===== FAQ ===== */
.faq-item{border-bottom:1px solid var(--glass-border);padding:20px 0;cursor:pointer}
.faq-question{display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:1.1rem}
.faq-answer{max-height:0;overflow:hidden;transition:var(--transition);color:#666}
.faq-item.open .faq-answer{max-height:300px;padding-top:16px}
.faq-toggle{font-size:1.5rem;transition:var(--transition)}
.faq-item.open .faq-toggle{transform:rotate(45deg)}

/* ===== HowTo ===== */
.howto-step{display:flex;gap:20px;align-items:flex-start;margin-bottom:30px}
.howto-number{background:var(--primary);color:#fff;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}

/* ===== Contact Form ===== */
.contact-form{max-width:600px;margin:0 auto}
.contact-form input,.contact-form textarea{width:100%;padding:16px;border:1px solid var(--glass-border);border-radius:12px;background:var(--glass-bg);color:var(--text-dark);margin-bottom:16px;font-size:1rem;transition:border .3s}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--primary)}
.contact-form textarea{min-height:150px;resize:vertical}

/* ===== Footer ===== */
.footer{background:var(--bg-dark);color:var(--text-light);padding:60px 24px 30px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;margin-bottom:40px}
.footer a{color:var(--text-light);opacity:0.7;transition:var(--transition)}
.footer a:hover{opacity:1;color:var(--primary)}
.footer h4{margin-bottom:16px;font-size:1.2rem}
.footer p{opacity:0.8;line-height:1.8}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;font-size:0.9rem;opacity:0.7}

/* ===== Back to Top ===== */
.back-to-top{position:fixed;bottom:30px;right:30px;width:50px;height:50px;border-radius:50%;background:var(--primary);color:#fff;border:none;cursor:pointer;font-size:1.5rem;box-shadow:var(--shadow);opacity:0;transform:translateY(20px);transition:var(--transition);z-index:100}
.back-to-top.visible{opacity:1;transform:translateY(0)}
.back-to-top:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(233,69,96,0.5)}

/* ===== Search Box ===== */
.search-box{display:flex;gap:8px;max-width:400px;margin:0 auto 40px}
.search-box input{flex:1;padding:12px 20px;border:1px solid var(--glass-border);border-radius:50px;background:var(--glass-bg);color:var(--text-dark);transition:border .3s}
.search-box input:focus{outline:none;border-color:var(--primary)}
.search-box button{padding:12px 24px;border-radius:50px;background:var(--primary);color:#fff;cursor:pointer;transition:var(--transition)}
.search-box button:hover{background:var(--primary-dark)}

/* ===== Responsive ===== */
@media(max-width:1024px){
    .grid-2,.grid-4{grid-template-columns:1fr 1fr}
    .stats-grid{grid-template-columns:1fr 1fr}
    .footer-grid{grid-template-columns:1fr 1fr}
    .hero h1{font-size:clamp(2.5rem,7vw,4rem)}
}
@media(max-width:768px){
    .nav-links{display:none}
    .menu-toggle{display:block}
    .mobile-menu{display:flex}
    .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
    .stats-grid{grid-template-columns:1fr 1fr}
    .footer-grid{grid-template-columns:1fr}
    .hero h1{font-size:2.5rem}
    .section{padding:60px 16px}
    .hero{padding:100px 16px 60px}
    .breadcrumb{padding:80px 16px 16px}
    .hero-slider .slide{width:160px}
    .btn{padding:14px 32px}
    .section-title{font-size:1.8rem}
    .stat-number{font-size:2.2rem}
}
@media(max-width:480px){
    .hero h1{font-size:2rem}
    .btn{padding:12px 28px;font-size:1rem}
    .hero-slider .slide{width:140px;padding:16px}
    .hero-slider .slide svg{width:40px;height:40px}
    .card{padding:24px}
    .section-title{font-size:1.5rem}
    .section-subtitle{font-size:1rem}
    .stat-number{font-size:1.8rem}
}

/* ===== Scroll Animation Base (JS adds inline styles) ===== */
.section,.hero,.stats,.footer{opacity:0;transform:translateY(30px);transition:opacity 0.6s ease,transform 0.6s ease}

/* ===== Misc ===== */
aside p{margin-bottom:8px;font-size:1.05rem}
article.card h3{font-size:1.2rem}
.footer-grid h4{color:#fff}
[data-theme="dark"] .footer-grid h4{color:var(--primary)}
::selection{background:var(--primary);color:#fff}
::-webkit-scrollbar{width:8px}
::-webkit-scrollbar-track{background:var(--bg-dark)}
::-webkit-scrollbar-thumb{background:var(--primary);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--primary-dark)}