/* ==========================================================================
   Sapphire Cooltech - Modern CSS
   ========================================================================== */

   :root {
    /* Color Palette */
    --primary: #0A2463; /* Sapphire Blue */
    --secondary: #247BA0; /* Cyan/Teal */
    --accent: #FB3640; /* Energetic Orange/Red (from reference logo gradient) */
    --accent-hover: #D9252F;
    --bg-light: #F4F7F6;
    --bg-white: #FFFFFF;
    --text-dark: #1A1A1D;
    --text-muted: #5A5A5A;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.3);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Shadows & Transitions */
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 40px rgba(10, 36, 99, 0.15);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    
    /* Layout */
    --container-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary);
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ==========================================================================
   Buttons & Inputs
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-family: var(--font-heading);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #FF5E62);
    color: white;
    box-shadow: 0 4px 15px rgba(251, 54, 64, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(251, 54, 64, 0.4);
    color: white;
}

.btn-secondary {
    background: var(--primary);
    color: white;
}

.btn-secondary:hover {
    background: #061846;
    color: white;
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-block {
    width: 100%;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.1rem;
}

.input-group {
    margin-bottom: 15px;
}

.input-group input,
.input-group textarea {
    width: 100%;
    padding: 14px 20px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 1rem;
    background: var(--bg-light);
    transition: var(--transition);
}

.input-group input:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(36, 123, 160, 0.1);
    background: var(--bg-white);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--bg-white);
    border-bottom: 2px solid var(--secondary);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    padding: 15px 0;
}

.header.scrolled {
    padding: 10px 0;
    box-shadow: var(--shadow-sm);
}

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

.logo img {
    height: 50px;
}

.nav-list {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-weight: 500;
    color: var(--text-dark);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary);
    transition: var(--transition);
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--secondary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.phone-link {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    color: var(--primary);
    font-family: var(--font-heading);
}

.phone-link i {
    color: var(--secondary);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.hamburger span {
    width: 30px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
    transition: var(--transition);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    padding: 150px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0.85) 50%, rgba(255,255,255,0) 100%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 50px;
    align-items: center;
}

.hero-content {
    max-width: 650px;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(36, 123, 160, 0.1);
    color: var(--secondary);
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 20px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 30px;
}

.hero-features {
    margin-bottom: 40px;
}

.hero-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-weight: 500;
    font-size: 1.05rem;
}

.hero-features i {
    color: var(--secondary);
    font-size: 1.2rem;
}

.hero-brands {
    display: flex;
    gap: 20px;
}

.brand-item {
    padding: 8px 16px;
    background: var(--bg-white);
    border-radius: 8px;
    font-weight: 600;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
    font-size: 0.9rem;
}

.form-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.form-card h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.form-card p {
    color: var(--text-muted);
    margin-bottom: 25px;
    font-size: 0.95rem;
}

.form-secure {
    margin-top: 15px;
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

/* ==========================================================================
   Sections General
   ========================================================================== */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.section-header h2 {
    font-size: 2.5rem;
    position: relative;
    padding-bottom: 15px;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--accent);
    border-radius: 2px;
}

.section-header.left {
    align-items: flex-start;
    text-align: left;
}

.section-header.left h2::after {
    left: 0;
    transform: none;
}

/* ==========================================================================
   Advantage Section
   ========================================================================== */
.advantage {
    background: #111b40;
    color: white;
    padding: 80px 0;
    font-family: var(--font-body);
}

.advantage-container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: stretch;
}

.advantage-left {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.adv-box {
    background: #1e2f5d;
    padding: 30px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.adv-box.intro-box {
    border-left: 4px solid #00d2ff;
}

.adv-box.intro-box h3 {
    color: white;
    font-size: 1.8rem;
    margin-bottom: 15px;
    font-weight: 500;
}

.adv-box.intro-box p {
    color: #e0e0e0;
    font-size: 1.05rem;
    line-height: 1.7;
}

.highlight-cyan {
    color: #00d2ff;
}

.highlight-orange {
    color: #ff9900;
}

.adv-box.checks-box h4 {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.check-green {
    color: #00e676;
}

.adv-box.checks-box p {
    color: #d0d0d0;
}

.adv-box.cta-box {
    background: linear-gradient(135deg, #00c6ff, #0072ff);
    text-align: center;
    border: none;
}

.adv-box.cta-box p {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.btn-advantage {
    display: inline-block;
    margin-top: 15px;
    background: white;
    color: #0072ff;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition);
}

.btn-advantage:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    color: #0072ff;
}

.advantage-right {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.feature-card {
    background: #18489b;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 30px;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-card:hover {
    transform: translateY(-5px);
    background: #1e55b0;
}

.feature-card i {
    font-size: 3rem;
    color: #00d2ff;
    margin-bottom: 15px;
}

.feature-card span {
    font-weight: 600;
    font-size: 1.1rem;
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services {
    background: var(--bg-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--bg-light);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    background: white;
    box-shadow: var(--shadow-lg);
    border-color: rgba(36, 123, 160, 0.1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: rgba(36, 123, 160, 0.1);
    color: var(--secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    margin: 0 auto 25px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--secondary);
    color: white;
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.service-card p {
    color: var(--text-muted);
}

/* ==========================================================================
   Expertise Section
   ========================================================================== */
.expertise {
    background: var(--bg-light);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.expertise-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: var(--bg-white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-left: 4px solid transparent;
}

.expertise-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-left-color: var(--secondary);
}

.exp-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: rgba(36, 123, 160, 0.1);
    color: var(--secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: var(--transition);
}

.expertise-item:hover .exp-icon {
    background: var(--secondary);
    color: white;
}

.exp-text h4 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: var(--primary);
}

.exp-text p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ==========================================================================
   Process Section
   ========================================================================== */
.process {
    background: linear-gradient(to bottom, var(--bg-light), var(--bg-white));
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    position: relative;
}

.process-grid::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 10%;
    width: 80%;
    height: 2px;
    background: dashed 2px var(--secondary);
    z-index: 1;
    opacity: 0.3;
}

.process-step {
    text-align: center;
    position: relative;
    z-index: 2;
    background: transparent;
    padding: 20px;
}

.step-icon {
    width: 100px;
    height: 100px;
    background: white;
    border: 3px solid var(--secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 35px;
    color: var(--primary);
    margin: 0 auto 20px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.process-step:hover .step-icon {
    transform: scale(1.1);
    background: var(--secondary);
    color: white;
}

.step-num {
    display: block;
    color: var(--accent);
    font-weight: 700;
    font-family: var(--font-heading);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
}

.process-step h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

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

/* ==========================================================================
   Footer & CTA
   ========================================================================== */
.cta-strip {
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    padding: 60px 0;
    color: white;
    text-align: center;
}

.cta-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.cta-container h2 {
    color: white;
    font-size: 2.2rem;
}

.cta-container h2::after {
    display: none;
}

.footer {
    background: #051334;
    color: rgba(255, 255, 255, 0.7);
    padding-top: 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    padding: 80px 0 50px;
}

.footer-col h3 {
    color: white;
    margin-bottom: 25px;
    font-size: 1.3rem;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
}

.footer-logo {
    height: 60px;
    margin-bottom: 20px;
    filter: brightness(0) invert(1);
}

.brand-col p {
    max-width: 300px;
}

.footer-col ul li {
    margin-bottom: 15px;
}

.footer-col ul li a {
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--secondary);
    padding-left: 5px;
}

.contact-col ul li {
    display: flex;
    align-items: center;
    gap: 15px;
}

.contact-col ul li i {
    color: var(--secondary);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 25px 0;
    text-align: center;
    font-size: 0.9rem;
}

/* ==========================================================================
   WhatsApp Floating Button
   ========================================================================== */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 35px;
    box-shadow: 2px 2px 15px rgba(0,0,0,0.2);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 2px 2px 20px rgba(37, 211, 102, 0.5);
    color: white;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        margin: 0 auto;
    }
    
    .hero-overlay {
        background: rgba(255, 255, 255, 0.9);
    }
    
    .hero-features li {
        justify-content: center;
    }
    
    .hero-brands {
        justify-content: center;
    }
    
    .process-grid::before {
        display: none;
    }
    
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-white);
        padding: 20px;
        box-shadow: var(--shadow-md);
        display: none;
        flex-direction: column;
    }

    .nav.active {
        display: flex;
    }

    .nav-list {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .header-actions .btn {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .advantage-container,
    .expertise-grid {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-col h3::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .contact-col ul li {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .process-grid {
        grid-template-columns: 1fr;
    }
    
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
    }
}