/* assets/css/style.css */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Brand Colors */
    --clr-white: #FFFFFF;
    --clr-soft-gray-bg: #F5F7FA;   /* Main background */
    --clr-soft-gray-alt: #E2E8F0;  /* Borders, dividers */
    
    --clr-blue-primary: #3B82F6;   /* Accents, buttons */
    --clr-blue-light: #EFF6FF;     /* Hover states */
    --clr-blue-dark: #1E3A8A;      /* Deep contrast */
    --clr-silver: #94A3B8;         /* Subtext */

    /* Typography */
    --clr-text-main: #0F172A;      /* Slate 900 */
    --clr-text-muted: #475569;     /* Slate 600 */

    /* Spacing */
    --spacer-sm: 0.5rem;
    --spacer-md: 1rem;
    --spacer-lg: 2rem;
    --spacer-xl: 4rem;
    --spacer-2xl: 6rem;

    /* Shadows & Effects */
    --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);
    
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;

    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
}

/* Reset & Base Setup */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-family: 'Inter', sans-serif;
    color: var(--clr-text-main);
    background-color: var(--clr-soft-gray-bg);
    line-height: 1.6;
    scroll-behavior: smooth;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacer-md);
}

.text-center { text-align: center; }
.text-primary { color: var(--clr-blue-primary); }
.text-muted { color: var(--clr-text-muted); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.btn-primary {
    background-color: var(--clr-blue-primary);
    color: var(--clr-white);
    box-shadow: var(--shadow-md);
}

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

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--clr-blue-primary);
    color: var(--clr-blue-primary);
}

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

/* Header & Navigation */
.site-header {
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--clr-soft-gray-alt);
    padding: var(--spacer-md) 0;
}

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

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--clr-blue-dark);
}

.brand-logo {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    gap: var(--spacer-lg);
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    color: var(--clr-text-muted);
}

.nav-links a:hover, .nav-links a.active {
    color: var(--clr-blue-primary);
}

/* Language Switcher */
.lang-switcher {
    position: relative;
    display: inline-block;
}

.lang-btn {
    background: transparent;
    border: 1px solid var(--clr-soft-gray-alt);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: inherit;
    font-weight: 500;
    color: var(--clr-text-muted);
}

.lang-btn:hover {
    background-color: var(--clr-soft-gray-bg);
}

.lang-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background-color: var(--clr-white);
    border: 1px solid var(--clr-soft-gray-alt);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    min-width: 120px;
    z-index: 10;
}

.lang-switcher.active .lang-dropdown {
    display: block;
    animation: fadeIn var(--transition-fast);
}

.lang-dropdown a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--clr-text-muted);
}

.lang-dropdown a:hover {
    background-color: var(--clr-soft-gray-bg);
    color: var(--clr-text-main);
}

/* Hero Section */
.hero {
    padding: var(--spacer-2xl) 0;
    text-align: center;
    background: linear-gradient(135deg, var(--clr-white) 0%, var(--clr-soft-gray-bg) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.03) 0%, transparent 60%);
    z-index: 0;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--clr-blue-dark);
    margin-bottom: var(--spacer-md);
    line-height: 1.1;
}

.hero p {
    font-size: 1.25rem;
    color: var(--clr-text-muted);
    margin-bottom: var(--spacer-lg);
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacer-sm);
    margin-top: var(--spacer-md);
}

.badge {
    padding: 0.25rem 0.75rem;
    background-color: var(--clr-blue-light);
    color: var(--clr-blue-primary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
}

/* Sections General */
.section {
    padding: var(--spacer-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacer-xl);
}

.section-title {
    font-size: 2.5rem;
    color: var(--clr-blue-dark);
    margin-bottom: var(--spacer-sm);
}

/* Card Grids */
.grid {
    display: grid;
    gap: var(--spacer-lg);
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.card {
    background-color: var(--clr-white);
    border-radius: var(--radius-lg);
    padding: var(--spacer-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--clr-soft-gray-alt);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.card-icon {
    width: 48px;
    height: 48px;
    background-color: var(--clr-blue-light);
    color: var(--clr-blue-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacer-md);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacer-sm);
    color: var(--clr-text-main);
}

/* Footer */
.site-footer {
    background-color: var(--clr-blue-dark);
    color: var(--clr-white);
    padding: var(--spacer-xl) 0 var(--spacer-md);
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacer-lg);
    margin-bottom: var(--spacer-xl);
}

.footer-brand {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacer-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-logo {
    width: 30px;
    height: 30px;
    filter: brightness(0) invert(1);
}

.footer-text {
    color: var(--clr-silver);
    max-width: 300px;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacer-md);
    color: var(--clr-white);
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--clr-silver);
}

.footer-links a:hover {
    color: var(--clr-white);
    padding-left: 4px; /* subtle interaction */
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacer-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--clr-silver);
    font-size: 0.875rem;
}

/* Redesigned Service Areas */
.footer-services {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacer-lg) 0;
    margin-top: var(--spacer-lg);
    text-align: center;
}

.footer-services-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--clr-silver);
    margin-bottom: var(--spacer-md);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.footer-services-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
}

.footer-services-list a {
    color: var(--clr-silver);
    font-size: 0.85rem;
    padding: 0.4rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.footer-services-list a:hover {
    background-color: var(--clr-blue-primary);
    color: var(--clr-white);
    border-color: var(--clr-blue-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--clr-text-main);
    margin: 5px 0;
    transition: var(--transition-fast);
}

/* Media Queries */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--clr-white);
        flex-direction: column;
        padding: var(--spacer-md);
        box-shadow: var(--shadow-md);
        border-top: 1px solid var(--clr-soft-gray-alt);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}