/* 
   AVIVA Redesign - Modern Industrial Theme
   Based on Q Tech Projects & Lucky Deep inspiration
*/

:root {
    /* Color Palette */
    --primary-color: #0E2954;
    /* Deep Naval Blue */
    --primary-dark: #061A38;
    --secondary-color: #ffffff;
    --accent-color: #00AEEF;
    /* Tech Blue */
    --accent-hover: #0095CC;
    --text-dark: #1E293B;
    --text-light: #64748B;
    --bg-light: #F8FAFC;
    --bg-white: #FFFFFF;

    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --container-width: 1200px;
    --header-height: 80px;

    /* Effects */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --glass-bg: rgba(255, 255, 255, 0.95);
    --glass-border: 1px solid rgba(255, 255, 255, 0.2);
    --transition: all 0.3s ease;
}

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

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

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

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

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

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

.grid {
    display: grid;
    gap: 2rem;
}

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

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 6px;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

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

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

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

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    height: var(--header-height);
    display: flex;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo img {
    height: 50px;
    /* Increased size */
    width: auto;
}

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

.nav-link {
    font-weight: 500;
    font-size: 1rem;
    color: var(--primary-color);
    position: relative;
    padding: 5px 0;
}

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

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

.nav-link.active {
    color: var(--accent-color);
}

.nav-link.btn-primary {
    background-color: var(--primary-color);
    color: white;
    padding: 10px 25px;
    /* Slightly smaller than default btn */
    border-radius: 5px;
}

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

.nav-link.btn-primary::after {
    display: none;
    /* Remove underline effect for button */
}

/* Dropdown Menu */
.dropdown {
    position: relative;
    padding-bottom: 10px;
    /* Bridge for hover area */
    margin-bottom: -10px;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: white;
    min-width: 220px;
    padding: 10px 0;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    border-top: 3px solid var(--accent-color);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-item {
    display: block;
    padding: 10px 20px;
    color: var(--text-dark);
    font-size: 0.95rem;
    transition: background 0.2s;
}

.dropdown-item:hover {
    background-color: var(--bg-light);
    color: var(--accent-color);
    padding-left: 25px;
    /* Slight slide effect */
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px;
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    height: 60vh;
    /* Reduced from 100vh for better fold visibility */
    min-height: 600px;
    background: linear-gradient(rgba(14, 41, 84, 0.85), rgba(14, 41, 84, 0.7)), url('../images/hero-bg.png');
    /* Graceful fallback */
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    color: white;
    margin-top: var(--header-height);
    position: relative;
    overflow: hidden;
}

/* Page Header (Common Theme for Inner Pages) */
.page-header {
    height: 40vh;
    min-height: 300px;
    background: linear-gradient(rgba(14, 41, 84, 0.9), rgba(14, 41, 84, 0.8)), url('../images/hero-bg.png');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    margin-top: var(--header-height);
    position: relative;
    overflow: hidden;
}

/* Add subtle pattern overlay */
.page-header::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(#ffffff 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.05;
    pointer-events: none;
}

.page-header h1 {
    font-size: 2.8rem;
    margin-bottom: 0.5rem;
    color: white;
    z-index: 2;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.9;
    z-index: 2;
}

/* Hero Section */
.hero {
    height: 70vh;
    /* Increased slightly for content */
    min-height: 600px;
    background: linear-gradient(rgba(14, 41, 84, 0.9), rgba(14, 41, 84, 0.75)), url('../images/hero-bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    color: white;
    margin-top: var(--header-height);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 1;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    animation: fadeInUp 1s ease-out;
}

.hero-text {
    flex: 1;
    max-width: 650px;
}

.hero-image {
    flex: 0.8;
    display: flex;
    justify-content: center;
    animation: float 6s ease-in-out infinite;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.3));
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
}

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

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-15px);
    }

    100% {
        transform: translateY(0px);
    }
}

/* Sections */
.section {
    padding: 80px 0;
}

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

.section-header {
    margin-bottom: 60px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
}

.section-header p {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-top: 20px;
}

/* Cards */
.card {
    background: white;
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.card p {
    color: var(--text-light);
    margin-bottom: 25px;
    flex-grow: 1;
}

.card-link {
    color: var(--accent-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.card-link::after {
    content: '→';
    transition: transform 0.3s;
}

.card-link:hover::after {
    transform: translateX(5px);
}

/* Footer */
.footer {
    background-color: var(--primary-dark);
    color: white;
    padding: 80px 0 20px;
    font-size: 0.95rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-col h4 {
    color: white;
    margin-bottom: 25px;
    font-size: 1.2rem;
    position: relative;
    padding-left: 15px;
}

.footer-col h4::before {
    content: '';
    position: absolute;
    left: 0;
    top: 5px;
    height: 20px;
    width: 3px;
    background-color: var(--accent-color);
}

.footer-logo {
    display: inline-block;
    background-color: white;
    padding: 10px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.footer-logo img {
    /* filter: brightness(0) invert(1); removed filter to show original logo colors */
    /* margin-bottom handled by parent */
    display: block;
}

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

.footer-col ul li a {
    color: #cbd5e1;
    transition: color 0.3s;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    color: #94a3b8;
    font-size: 0.9rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Media Queries */
@media (max-width: 992px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero h1 {
        font-size: 2.8rem;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .nav {
        display: none;
        /* Todo: Add JS toggle implementation */
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        padding: 20px 0;
        box-shadow: var(--shadow-lg);
        flex-direction: column;
    }

    .nav.active {
        display: flex;
    }

    .nav-list {
        flex-direction: column;
        gap: 0;
    }

    .nav-link {
        display: block;
        padding: 15px 30px;
        width: 100%;
    }

    .dropdown-menu {
        position: static;
        width: 100%;
        box-shadow: none;
        transform: none;
        opacity: 1;
        visibility: visible;
        display: none;
        background-color: var(--bg-light);
        padding-left: 20px;
        border-top: none;
    }

    .dropdown:hover .dropdown-menu {
        display: block;
    }
}

@media (max-width: 768px) {

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }

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

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}

/* Product Page Enhancements */
.product-hero {
    height: 40vh;
    min-height: 300px;
    background: linear-gradient(rgba(14, 41, 84, 0.9), rgba(14, 41, 84, 0.8)), url('../images/hero-bg.png');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    margin-top: var(--header-height);
}

/* Tabs */
.tabs-nav {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 30px;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 30px;
    cursor: pointer;
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-light);
    transition: all 0.3s;
}

.tab-btn:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

.tab-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Icon Cards */
.icon-card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.card-icon {
    width: 50px;
    height: 50px;
    background: var(--bg-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    font-size: 1.5rem;
}