:root {
    --primary: #0077B6;
    --secondary: #90E0EF;
    --accent: #00B4D8;
    --dark: #03045E;
    --light: #CAF0F8;
    --white: #FFFFFF;
    --glass: rgba(202, 240, 248, 0.4);
    --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Outfit', sans-serif;
    color: var(--dark);
    background-color: #f8fbff;
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
}

header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    list-style: none;
}

.nav-links a {
    font-weight: 500;
    color: var(--dark);
    transition: 0.3s;
}

.nav-links a:hover {
    color: var(--primary);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    padding: 100px 0 140px;
    color: var(--white);
    text-align: center;
    position: relative;
    clip-path: ellipse(150% 100% at 50% 0%);
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    color: var(--white);
    margin-bottom: 1.5rem;
    font-weight: 800;
    line-height: 1.2;
}

.hero p {
    font-size: 1.3rem;
    max-width: 800px;
    margin: 0 auto 2.5rem;
    opacity: 0.9;
}

.hero-section {
    padding: 60px 0;
    text-align: center;
}

/* Search Box */
.search-box {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.search-box:focus-within {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 119, 182, 0.2) !important;
}

/* Button & Forms */
.btn {
    background: var(--primary);
    color: var(--white);
    padding: 14px 30px;
    border-radius: 50px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: none;
    cursor: pointer;
    transition: 0.3s;
    box-shadow: 0 4px 15px rgba(0, 119, 182, 0.3);
}

.btn:hover {
    background: var(--dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 119, 182, 0.4);
    color: var(--white);
}

.btn-primary { background: var(--primary); }
.btn-full { width: 100%; justify-content: center; }

.form-control {
    width: 100%;
    padding: 12px 18px;
    border-radius: 12px;
    border: 1px solid rgba(0,0,0,0.1);
    background: white;
    font-family: inherit;
    font-size: 1rem;
    margin-top: 8px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    font-weight: 600;
    color: var(--dark);
    font-size: 0.95rem;
}

.checkbox-group {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checkbox-group label {
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

/* Simulator Grid */
.simulator-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 30px;
    align-items: start;
}

.price-display {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    margin: 15px 0;
}

.price-display small {
    font-size: 1rem;
    color: var(--dark);
    opacity: 0.6;
}

.spec-list {
    list-style: none;
    margin: 20px 0 30px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.spec-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
}

.spec-list i {
    color: var(--primary);
    width: 20px;
}

.sticky-sidebar {
    position: sticky;
    top: 100px;
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow);
    padding: 2.5rem;
    transition: all 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(31, 38, 135, 0.2);
}

/* VUD Widget Banner Full */
.vud-banner-full {
    max-width: 1000px;
    margin: 0 auto;
    background: var(--white);
    padding: 0;
    overflow: hidden;
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.1);
    border: 1px solid rgba(0,0,0,0.05);
}

.vud-header {
    background: #0077B6;
    color: white;
    padding: 40px 20px;
    text-align: center;
}

.vud-badge {
    display: inline-block;
    background: #00B4D8;
    color: white;
    padding: 5px 15px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 800;
    margin-bottom: 15px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.vud-header h2 {
    color: white;
    margin: 0 0 15px;
    font-size: 2.2rem;
    font-weight: 800;
}

.vud-header p {
    opacity: 0.9;
    font-size: 1.1rem;
}

.vud-widget-container {
    padding: 20px;
    background: white;
    min-height: 200px;
}

.vud-footer {
    display: flex;
    justify-content: center;
    gap: 40px;
    padding: 25px;
    background: #E0F2F1;
    border-top: 1px solid rgba(0,0,0,0.05);
}

.vud-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    font-weight: 700;
    color: #0077B6;
}

/* Weather Widget */
.weather-widget {
    padding: 1.5rem !important;
}

/* Water Calculator Sidebar */
.calc-sidebar {
    padding: 1.5rem !important;
}

.calc-result {
    margin-top: 20px;
    padding: 15px;
    background: var(--primary);
    color: white;
    border-radius: 12px;
    text-align: center;
}

/* Grid & Layouts */
.section-title {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 40px;
    font-weight: 700;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.top-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 30px;
}

/* Pro Card */
.pro-card {
    transition: 0.3s;
}

/* Footer */
footer {
    background: var(--dark);
    color: var(--white);
    padding: 80px 0 40px;
}

/* Animations */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-on-scroll.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 992px) {
    .simulator-grid { grid-template-columns: 1fr; }
    .sticky-sidebar { position: static; }
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.2rem; }
    .nav-links { display: none; }
    .top-grid { grid-template-columns: 1fr; }
}