:root {
    --primary: #2563eb;
    --primary-glow: rgba(37, 99, 235, 0.2);
    --dark: #0f172a;
    --light: #f8fafc;
    --accent: #38bdf8;
    --card-bg: #ffffff;
    --border-soft: #e2e8f0;
}

/* Global */
body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    color: var(--dark);
    scroll-behavior: smooth;
}

/* Header / Navbar */
header {
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(10px);
    padding: 1rem 5%;
    box-shadow: 0 8px 30px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 999;
}

.logo {
    font-weight: 800;
    font-size: 1.6rem;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

nav ul li a {
    position: relative;
    transition: color 0.3s;
}

nav ul li a::after {
    content: "";
    position: absolute;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    left: 0;
    bottom: -5px;
    transition: 0.3s;
}

nav ul li a:hover::after,
.active::after {
    width: 100%;
}

/* Hero */
.hero {
    text-align: center;
    padding: 80px 20px;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}

/* Search */
.search-container input {
    width: 100%;
    max-width: 520px;
    padding: 15px 20px;
    border: 2px solid var(--border-soft);
    border-radius: 40px;
    font-size: 1rem;
    outline: none;
    transition: 0.3s;
    box-shadow: 0 5px 20px rgba(37,99,235,0.08);
}

.search-container input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

/* Filter Tags */
.filter-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin: 30px 0;
}

.filter-btn {
    padding: 8px 22px;
    border-radius: 25px;
    border: 1px solid var(--primary);
    background: rgba(37,99,235,0.05);
    cursor: pointer;
    transition: 0.3s;
    font-weight: 500;
}

.filter-btn.active,
.filter-btn:hover {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    box-shadow: 0 5px 15px rgba(37,99,235,0.25);
}

/* Career Grid */
.career-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    padding: 0 5% 60px;
}

/* Cards */
.card {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    padding: 28px;
    border-radius: 18px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.06);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
    border: 1px solid var(--border-soft);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(56,189,248,0.12), transparent 60%);
    opacity: 0;
    transition: 0.3s;
}

.card:hover::before {
    opacity: 1;
}

.card:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: 0 20px 50px rgba(0,0,0,0.12);
}

.card h3 {
    margin-top: 0;
    font-weight: 700;
    color: var(--primary);
}

/* Tag */
.tag {
    display: inline-block;
    background: linear-gradient(135deg, #e0f2fe, #bae6fd);
    color: #0369a1;
    padding: 5px 12px;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: linear-gradient(180deg, #ffffff, #f8fafc);
    margin: 6% auto;
    padding: 35px;
    width: min(90%, 600px);
    border-radius: 20px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.25);
    animation: slideUp 0.4s ease;
}

.close-btn {
    float: right;
    cursor: pointer;
    font-size: 1.6rem;
    color: #64748b;
    transition: 0.3s;
}

.close-btn:hover {
    color: var(--primary);
    transform: rotate(90deg);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Responsive */
@media (max-width: 768px) {
    .modal-content {
        margin: 15% auto;
        padding: 25px;
    }

    .hero {
        padding: 60px 15px;
    }
}
/* ===== NAVBAR FIX & ENHANCEMENT ===== */

header {
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(10px);
    padding: 1rem 5%;
    box-shadow: 0 8px 30px rgba(0,0,0,0.06);
    position: sticky;
    top: 0;
    z-index: 999;
}

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

/* Logo */
.logo {
    font-weight: 900;
    font-size: 1.6rem;
    letter-spacing: 0.5px;
    background: linear-gradient(135deg, #2563eb, #38bdf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Nav Links */
nav ul {
    display: flex;
    list-style: none;
    gap: 28px;
    margin: 0;
    padding: 0;
}

nav ul li {
    position: relative;
}

nav ul li a {
    text-decoration: none;
    color: #0f172a;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 6px 2px;
    transition: color 0.3s;
}

/* Hover underline animation */
nav ul li a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, #2563eb, #38bdf8);
    transition: 0.3s;
    border-radius: 2px;
}

nav ul li a:hover {
    color: #2563eb;
}

nav ul li a:hover::after {
    width: 100%;
}

/* Active Link */
nav ul li a.active,
nav ul li .active {
    color: #2563eb;
    font-weight: 700;
}

nav ul li a.active::after,
nav ul li .active::after {
    width: 100%;
}

/* Mobile Nav (if you add later) */
@media (max-width: 768px) {
    nav ul {
        gap: 16px;
        font-size: 0.9rem;
    }
}

.error-message {
    color: red;
    font-size: 14px;
    margin-top: 5px;
}