/* 
* Premium Modern UI CSS for SRET 
* Designed with modern aesthetic principles, glassmorphism, and dynamic animations
*/

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Premium Color Palette */
    --primary: #2B3990; /* Deep Royal Blue */
    --primary-light: #4A5DB3;
    --primary-dark: #1A235A;
    --secondary: #F06108; /* Vibrant Orange */
    --secondary-light: #FF8533;
    --secondary-dark: #C44C00;
    
    /* Neutral Colors */
    --bg-main: #FAFCFF; /* Very light cool grey/blue */
    --surface: #FFFFFF;
    --text-main: #1E293B;
    --text-muted: #64748B;
    --border: #E2E8F0;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    --gradient-accent: linear-gradient(135deg, var(--secondary) 0%, #FF9955 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Shadows */
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(43, 57, 144, 0.25);
    --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
    
    /* Radii */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: var(--primary);
    text-decoration: none;
    transition: all var(--transition-normal);
}

a:hover {
    color: var(--secondary);
    text-decoration: none;
}

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

/* ================== Typography Utilities ================== */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-accent {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--secondary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-subtitle::before {
    content: '';
    display: inline-block;
    width: 40px;
    height: 3px;
    background: var(--secondary);
    border-radius: var(--radius-full);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 24px;
    color: var(--primary-dark);
}

/* ================== Layout & Components ================== */
.container-custom {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Buttons */
.btn-premium {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    gap: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 10px 20px -5px rgba(43, 57, 144, 0.4);
}

.btn-primary:hover {
    background: var(--primary-light);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 15px 25px -5px rgba(43, 57, 144, 0.5);
}

.btn-accent {
    background: var(--secondary);
    color: white;
    box-shadow: 0 10px 20px -5px rgba(240, 97, 8, 0.4);
}

.btn-accent:hover {
    background: var(--secondary-light);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 15px 25px -5px rgba(240, 97, 8, 0.5);
}

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

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

/* ================== Topbar & Navbar ================== */
.topbar {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 10px 0;
    font-size: 0.875rem;
    font-weight: 500;
}

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

.topbar-contact {
    display: flex;
    gap: 24px;
}

.topbar-contact a {
    color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    gap: 8px;
}

.topbar-contact a:hover {
    color: var(--secondary);
}

.topbar-socials {
    display: flex;
    gap: 16px;
}

.topbar-socials a {
    color: rgba(255, 255, 255, 0.8);
    transition: all var(--transition-fast);
}

.topbar-socials a:hover {
    color: var(--secondary);
    transform: translateY(-2px);
}

/* Navbar */
.navbar-wrapper {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.navbar {
    padding: 15px 0;
}

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

.navbar-brand img {
    height: 70px;
    transition: all var(--transition-normal);
}

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

.nav-item {
    position: relative;
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-main);
    font-size: 1.05rem;
    padding: 10px 0;
    display: inline-block;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--secondary);
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}

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

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

/* Dropdown */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: all var(--transition-normal);
    padding: 12px 0;
    z-index: 100;
    border: 1px solid var(--border);
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: 10px 24px;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--bg-main);
    color: var(--primary);
    padding-left: 30px;
}

/* Mobile Menu Toggle */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary);
    cursor: pointer;
}

/* ================== Footer ================== */
.footer {
    background: var(--primary-dark);
    color: white;
    padding: 80px 0 0 0;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(240, 97, 8, 0.15) 0%, rgba(26, 35, 90, 0) 70%);
    border-radius: 50%;
    z-index: 0;
}

.footer-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 60px;
}

.footer-col h3 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 12px;
}

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

.footer-logo {
    margin-bottom: 24px;
    background: white;
    padding: 10px;
    border-radius: var(--radius-md);
    display: inline-block;
}

.footer-logo img {
    height: 60px;
}

.footer-text {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 24px;
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.footer-links a::before {
    content: '→';
    color: var(--secondary);
    opacity: 0;
    transform: translateX(-10px);
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-links a:hover::before {
    opacity: 1;
    transform: translateX(0);
}

.footer-contact-info {
    list-style: none;
}

.footer-contact-info li {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.7);
    align-items: flex-start;
}

.footer-contact-info i {
    color: var(--secondary);
    font-size: 1.25rem;
    margin-top: 4px;
}

.footer-bottom {
    background: rgba(0, 0, 0, 0.2);
    padding: 24px 0;
    text-align: center;
    position: relative;
    z-index: 1;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* ================== Animations ================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-up {
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

/* ================== Media Queries ================== */
@media (max-width: 992px) {
    .nav-menu {
        display: none; /* Add JS later for mobile menu */
    }
    .mobile-toggle {
        display: block;
    }
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .topbar {
        display: none;
    }
    .footer-content {
        grid-template-columns: 1fr;
    }
}