/* DESIGN TOKENS */
:root {
    --primary-color: #f27024;
    --primary-light: #fef0e8;
    --primary-hover: #d9621e;
    --secondary-color: #1e293b;
    --accent-color: #f59e0b;
    --bg-light: #f8fafc;
    --bg-dark: #0f172a;
    --text-main: #334155;
    --text-muted: #64748b;
    --text-light: #f1f5f9;
    --white: #ffffff;
    
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

/* RESET & BASE */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

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

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 80px 0;
}

.bg-light {
    background-color: var(--bg-light);
}

.text-center {
    text-align: center;
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--white);
    color: var(--white);
}

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

.btn-large {
    padding: 14px 32px;
    font-size: 1.1rem;
}

.btn-link {
    padding: 0;
    color: var(--primary-color);
    background: transparent;
    font-weight: 600;
}

.btn-link:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* NAVBAR */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    /* Dark premium gradient */
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.95) 0%, rgba(15, 23, 42, 0.98) 100%);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
    padding: 5px 0;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    transition: var(--transition);
}

.navbar.scrolled .nav-content {
    height: 70px;
}

.logo-img {
    height: 30px;
    width: auto;
    object-fit: contain;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-weight: 600;
    color: var(--white);
    position: relative;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

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

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--white);
    transition: var(--transition);
}

/* HERO SECTION */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.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;
}

.hero-bg .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(15,23,42,0.9) 0%, rgba(15,23,42,0.6) 100%);
}

.hero-content {
    color: var(--text-light);
    max-width: 800px;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 24px;
    backdrop-filter: blur(4px);
}

.hero-title {
    font-size: 3.5rem;
    color: var(--white);
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #cbd5e1;
    margin-bottom: 40px;
    max-width: 600px;
}

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

/* SECTION HEADER */
.section-header {
    margin-bottom: 48px;
    max-width: 800px;
}

.text-center.section-header {
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
}

.text-center .section-header h2::after {
    left: 50%;
    transform: translateX(-50%);
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* FEATURES / 4 REASONS */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--white);
    padding: 40px 32px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--primary-color);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    font-size: 3rem;
    font-weight: 800;
    color: rgba(14, 165, 233, 0.15);
    margin-bottom: 24px;
    line-height: 1;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

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

/* PRODUCTS */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-bottom: 64px;
}

.product-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-img {
    position: relative;
    padding-top: 75%; /* 4:3 Aspect Ratio */
    background: #f1f5f9;
    overflow: hidden;
}

.product-img img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-img img {
    transform: scale(1.05);
}

.product-info {
    padding: 32px;
}

.product-category {
    font-size: 0.875rem;
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    display: block;
}

.product-info h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.product-info p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* INGREDIENTS CTA */
.ingredients-cta {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #334155 100%);
    border-radius: var(--border-radius-lg);
    padding: 48px;
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.ingredients-cta::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(14,165,233,0.3) 0%, transparent 70%);
}

.ingredients-cta h3 {
    color: var(--white);
    font-size: 2rem;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.ingredients-cta p {
    color: #cbd5e1;
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* FOOTER */
.footer {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: 80px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 64px;
}

.footer-logo-img {
    height: 60px;
    width: auto;
    margin-bottom: 24px;
    object-fit: contain;
}

.footer-desc {
    color: #94a3b8;
}

.footer-col h3 {
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 24px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #94a3b8;
}

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

.footer-contact {
    list-style: none;
    color: #94a3b8;
}

.footer-contact li {
    margin-bottom: 16px;
}

.footer-contact strong {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #64748b;
}

/* RESPONSIVE DESIGN */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.8rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links, .nav-actions {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        padding: 24px;
        box-shadow: var(--shadow-md);
        gap: 16px;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

/* INTRO SECTION */
.intro { background-color: #fff; }
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.intro-card { background: white; border: 1px solid rgba(242, 112, 36, 0.2); border-radius: var(--border-radius-lg); padding: 40px; position: relative; box-shadow: var(--shadow-md); overflow: hidden; }
.intro-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 8px; background-color: var(--primary-color); }
.watermark-text { position: absolute; top: 20%; right: -10%; font-size: 8rem; font-weight: 900; color: rgba(242, 112, 36, 0.03); transform: rotate(45deg); pointer-events: none; z-index: 0; font-style: italic; }
.intro-card-title { font-size: 2rem; color: var(--primary-color); text-align: center; margin-bottom: 32px; position: relative; z-index: 1; }
.badge-label { background: var(--primary-color); color: var(--white); padding: 8px 20px; border-radius: 50px; display: inline-block; font-weight: 700; margin-bottom: 20px; font-size: 1.1rem; position: relative; z-index: 1; }
.intro-list { list-style: none; position: relative; z-index: 1; margin-bottom: 24px; }
.intro-list li { position: relative; padding-left: 24px; margin-bottom: 12px; color: var(--text-main); }
.intro-list li::before { content: '•'; color: var(--primary-color); font-weight: bold; font-size: 1.5rem; position: absolute; left: 0; top: -4px; }
.intro-list-numbers { list-style: none; position: relative; z-index: 1; margin-bottom: 24px;}
.intro-list-numbers li { margin-bottom: 16px; color: var(--text-main); }
.intro-list-numbers strong { color: var(--primary-color); }
.product-meta { background: #f8fafc; padding: 24px; border-radius: var(--border-radius-md); font-size: 0.9rem; position: relative; z-index: 1; }
.product-meta p { margin-bottom: 8px; }
.badge-volume { display: inline-block; border: 2px solid var(--primary-color); color: var(--primary-color); font-weight: 800; padding: 2px 12px; border-radius: 4px; }

/* Super Bond Image */
.super-bond-img-wrapper {
    margin: 24px auto 0;
    max-width: 140px;
}
.super-bond-img {
    width: 100%;
    height: auto;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), filter 0.4s ease;
    filter: drop-shadow(0 10px 15px rgba(242, 112, 36, 0.2));
    display: block;
    margin: auto;
    cursor: pointer;
}
.super-bond-img:hover {
    transform: scale(1.1) rotate(2deg);
    filter: drop-shadow(0 15px 25px rgba(242, 112, 36, 0.5));
}

@media (max-width: 992px) { .intro-grid { grid-template-columns: 1fr; } }
@media (max-width: 768px) { .intro-card { padding: 24px; } }

/* FLOATING HOTLINE */
.floating-hotline {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    align-items: center;
    background-color: var(--white);
    padding: 8px 16px 8px 8px;
    border-radius: 50px;
    box-shadow: 0 10px 25px rgba(242, 112, 36, 0.4);
    z-index: 9999;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid var(--primary-color);
}

.floating-hotline:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(242, 112, 36, 0.6);
}

.hotline-icon {
    width: 45px;
    height: 45px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 12px;
    position: relative;
    animation: pulse-ring 2s infinite;
}

.hotline-icon svg {
    width: 24px;
    height: 24px;
    color: var(--white);
    animation: phone-shake 1.5s infinite;
}

.hotline-text {
    display: flex;
    flex-direction: column;
}

.hotline-text span {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.hotline-text strong {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 800;
    line-height: 1;
}

@keyframes pulse-ring {
    0% { box-shadow: 0 0 0 0 rgba(242, 112, 36, 0.6); }
    70% { box-shadow: 0 0 0 15px rgba(242, 112, 36, 0); }
    100% { box-shadow: 0 0 0 0 rgba(242, 112, 36, 0); }
}

@keyframes phone-shake {
    0% { transform: rotate(0deg); }
    10% { transform: rotate(-15deg); }
    20% { transform: rotate(15deg); }
    30% { transform: rotate(-15deg); }
    40% { transform: rotate(15deg); }
    50% { transform: rotate(0deg); }
    100% { transform: rotate(0deg); }
}

@media (max-width: 576px) {
    .floating-hotline {
        bottom: 20px;
        right: 20px;
    }
    .hotline-text span {
        font-size: 0.65rem;
    }
    .hotline-text strong {
        font-size: 0.85rem;
    }
}