/* CSS Design System & Variables - Cleaning & Premium Gold Theme */
:root {
    --primary: #00e5ff; /* Steam Cyan / Water Blue */
    --primary-rgb: 0, 229, 255;
    --secondary: #0c1b30; /* Trustworthy Deep Navy */
    --secondary-rgb: 12, 27, 48;
    --accent: #ffb700; /* Premium Flyer Gold */
    --accent-rgb: 255, 183, 0;
    --dark-bg: #070e17; /* Slate Black Navy */
    --dark-card: rgba(12, 27, 48, 0.7);
    --light-bg: #f3f7fb; /* Fresh Water Gray */
    --light-card: #ffffff;
    --text-dark: #0c1b30;
    --text-light: #f4f8fb;
    --text-muted: #5b7086;
    --text-muted-light: #a0b2c6;
    --border-color: rgba(0, 229, 255, 0.15);
    --border-color-light: rgba(12, 27, 48, 0.08);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --shadow-premium: 0 20px 40px -15px rgba(0, 229, 255, 0.25);
    --shadow-light: 0 12px 30px -10px rgba(12, 27, 48, 0.06);
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 8px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

/* Custom UI Components & Helpers */
.text-center { text-align: center; }
.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.badge {
    display: inline-block;
    padding: 8px 18px;
    background: rgba(0, 229, 255, 0.08);
    color: var(--primary);
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 20px;
    border: 1px solid rgba(0, 229, 255, 0.2);
}

.section-header {
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    color: var(--secondary);
}

.section-desc {
    max-width: 600px;
    margin: 0 auto;
    color: var(--text-muted);
}

.sub-title {
    display: block;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 10px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font-heading);
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #e5a300);
    color: var(--secondary);
    box-shadow: 0 10px 20px -5px rgba(255, 183, 0, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 25px -5px rgba(255, 183, 0, 0.45);
}

.btn-secondary {
    background-color: var(--primary);
    color: var(--secondary);
    box-shadow: 0 6px 15px -3px rgba(0, 229, 255, 0.3);
}

.btn-secondary:hover {
    background-color: #00ccd4;
    transform: translateY(-2px);
}

.btn-whatsapp {
    background-color: #25D366;
    color: #fff;
    box-shadow: 0 6px 15px -3px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
    background-color: #20ba59;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -3px rgba(37, 211, 102, 0.4);
}

.btn-outline {
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    background: transparent;
}

.btn-outline:hover {
    background: #fff;
    color: var(--secondary);
    border-color: #fff;
    transform: translateY(-3px);
}

.btn-block {
    width: 100%;
}

/* Main Header */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(243, 247, 251, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color-light);
    transition: var(--transition);
}

.main-header.scrolled {
    padding: 12px 0;
    box-shadow: var(--shadow-light);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--secondary);
    letter-spacing: -0.5px;
}

.logo-icon-wrapper {
    color: var(--primary);
    display: flex;
    align-items: center;
}

.logo-accent {
    color: var(--primary);
}

.nav-menu ul {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-weight: 600;
    color: var(--secondary);
    position: relative;
    font-size: 0.95rem;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-toggle span {
    width: 28px;
    height: 3px;
    background-color: var(--secondary);
    border-radius: 4px;
    transition: var(--transition);
}

/* Hero Section */
.hero-section {
    position: relative;
    padding: 180px 0 120px 0;
    background-color: var(--dark-bg);
    color: var(--text-light);
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.8rem;
    margin-bottom: 20px;
    line-height: 1.15;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted-light);
    margin-bottom: 36px;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-guarantees {
    display: flex;
    flex-direction: column;
    gap: 16px;
    border-left: 3px solid var(--primary);
    padding-left: 20px;
}

.guarantee-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-light);
}

.guarantee-icon {
    font-size: 1.2rem;
    color: var(--primary);
}

.hero-image-wrapper {
    position: relative;
}

.image-bg-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(0, 229, 255, 0.15) 0%, transparent 60%);
    z-index: 1;
    pointer-events: none;
}

.hero-img {
    position: relative;
    z-index: 2;
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-premium);
    object-fit: cover;
    border: 1px solid var(--border-color);
}

/* Why Steam / About Section */
.about-section {
    padding: 100px 0;
    background-color: var(--light-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background-color: var(--light-card);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border: 1px solid var(--border-color-light);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 60px -15px rgba(12, 27, 48, 0.1);
    border-color: rgba(0, 229, 255, 0.25);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: rgba(0, 229, 255, 0.08);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    font-size: 1.8rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
    color: var(--secondary);
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Services Section */
.services-section {
    padding: 100px 0;
    background-color: #fff;
}

.services-5-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    justify-content: center;
}

.service-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-color: var(--light-bg);
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-color-light);
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 60px -20px rgba(0, 229, 255, 0.18);
    border-color: rgba(0, 229, 255, 0.3);
}

.service-img-placeholder {
    height: 180px;
    background: linear-gradient(135deg, var(--secondary), #152d4b);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
}

.service-body {
    padding: 30px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.service-body h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--secondary);
}

.service-body p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: auto;
}

/* Before / After Section */
.ba-section {
    padding: 100px 0;
    background-color: var(--dark-bg);
    color: var(--text-light);
}

.ba-section .section-header h2 {
    color: var(--text-light);
}

.slider-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.comparison-slider {
    position: relative;
    width: 100%;
    height: 480px;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-premium);
    border: 1px solid var(--border-color);
}

.comparison-slider .img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    user-select: none;
}

.comparison-slider img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
}

.background-img {
    z-index: 1;
}

.foreground-img {
    z-index: 2;
    width: 50%;
    overflow: hidden;
    border-right: 2px solid var(--accent);
}

.slider-button {
    position: absolute;
    z-index: 3;
    top: 0;
    left: 50%;
    width: 4px;
    height: 100%;
    background-color: var(--accent);
    cursor: ew-resize;
    transform: translateX(-50%);
}

.slider-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 44px;
    height: 44px;
    background-color: var(--accent);
    border: 3px solid var(--secondary);
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(0,0,0,0.4);
    transition: var(--transition);
}

.slider-button:hover::before {
    background-color: var(--primary);
    transform: translate(-50%, -50%) scale(1.1);
}

.arrow-left, .arrow-right {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
    z-index: 4;
    pointer-events: none;
}

.arrow-left {
    left: calc(50% - 14px);
    border-right: 8px solid var(--secondary);
}

.arrow-right {
    right: calc(50% - 14px);
    border-left: 8px solid var(--secondary);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 16px;
    font-weight: 600;
    color: var(--text-muted-light);
    font-size: 0.95rem;
}

/* FAQ Section */
.faq-section {
    padding: 100px 0;
    background-color: #fff;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    border: 1px solid var(--border-color-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
}

.faq-question {
    width: 100%;
    padding: 24px;
    background-color: var(--light-bg);
    border: none;
    text-align: left;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--secondary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: rgba(0, 229, 255, 0.05);
}

.faq-icon {
    font-size: 1.5rem;
    line-height: 1;
    color: var(--primary);
    transition: var(--transition);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    background-color: #fff;
}

.faq-answer p {
    padding: 24px;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color-light);
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

/* Contact & Reservation Section */
.contact-section {
    padding: 100px 0;
    background-color: var(--dark-bg);
    color: var(--text-light);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 80px;
    align-items: center;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
}

.contact-info p {
    color: var(--text-muted-light);
    margin-bottom: 40px;
}

.info-list {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.info-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.info-icon {
    font-size: 1.5rem;
    background: rgba(255, 255, 255, 0.04);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--primary);
    border: 1px solid var(--border-color);
}

.info-item h4 {
    margin-bottom: 4px;
    color: var(--text-light);
}

.info-item p {
    margin: 0;
    color: var(--text-muted-light);
}

.contact-link {
    color: var(--primary);
    font-weight: 600;
}

.contact-link:hover {
    color: var(--accent);
    text-decoration: underline;
}

.contact-form-wrapper {
    background-color: var(--dark-card);
    padding: 48px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.reservation-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted-light);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 18px;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group select option {
    background-color: var(--secondary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    background-color: rgba(255, 255, 255, 0.06);
    outline: none;
    box-shadow: 0 0 10px rgba(0, 229, 255, 0.15);
}

.form-success-msg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 32px;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.form-success-msg.active {
    opacity: 1;
    pointer-events: auto;
}

.form-success-msg h3 {
    font-size: 1.8rem;
    margin-bottom: 16px;
    color: var(--accent);
}

/* Footer */
.main-footer {
    background-color: #04080f;
    color: var(--text-muted-light);
    padding: 80px 0 30px 0;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    color: #fff;
    margin-bottom: 20px;
    display: inline-flex;
}

.footer-brand p {
    font-size: 0.95rem;
    max-width: 340px;
}

.footer-links h4,
.footer-social h4 {
    color: #fff;
    margin-bottom: 24px;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

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

.social-icons {
    display: flex;
    gap: 16px;
}

.social-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.social-icon:hover {
    background: var(--primary);
    color: var(--secondary);
    transform: translateY(-2px);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.85rem;
}

/* Responsive Navigation & Adaptations */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-content p {
        margin: 0 auto 40px auto;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-guarantees {
        border-left: none;
        border-top: 3px solid var(--primary);
        padding-left: 0;
        padding-top: 20px;
        align-items: center;
    }

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

    .contact-container {
        grid-template-columns: 1fr;
        gap: 60px;
    }
}

@media (max-width: 768px) {
    .main-header {
        padding: 16px 0;
    }

    .mobile-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--light-bg);
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
        padding: 100px 40px 40px 40px;
        transition: var(--transition);
        z-index: 999;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu ul {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }

    .nav-link {
        font-size: 1.1rem;
    }

    .nav-cta {
        width: 100%;
    }

    .features-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .comparison-slider {
        height: 320px;
    }

    .slider-button::before {
        width: 36px;
        height: 36px;
    }
}