/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Inter', system-ui, sans-serif;
    background: linear-gradient(145deg, #f0f6ff 0%, #eef2fa 100%);
    color: #1a2c3e;
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
/* Header */
.site-header {
    background: #ffffff;
    box-shadow: 0 8px 20px rgba(0,0,0,0.04);
    position: sticky;
    top: 0;
    z-index: 10;
}
.container-header {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo-left { flex-shrink: 0; }
.header-logo-img { height: 50px; width: auto; }
.nav-menu ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}
.nav-menu a {
    text-decoration: none;
    font-weight: 600;
    color: #1e4663;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
}
.nav-menu a:hover, .nav-menu a.active {
    color: #0f6b9c;
    border-bottom-color: #1e88e5;
}
.hamburger { display: none; }
@media (max-width: 768px) {
    .container-header { padding: 0.5rem 1rem; }
    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: white;
        transition: left 0.3s;
        padding: 5rem 2rem;
        z-index: 15;
    }
    .nav-menu.active { left: 0; }
    .nav-menu ul { flex-direction: column; gap: 1.5rem; }
    .hamburger {
        display: block;
        background: none;
        border: none;
        cursor: pointer;
    }
    .hamburger-icon { width: 28px; }
}
.main-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.5rem;
}
.verification-card {
    background: white;
    max-width: 620px;
    width: 100%;
    border-radius: 32px;
    box-shadow: 0 25px 45px -12px rgba(0,32,64,0.15);
    padding: 2rem;
}
.card-header {
    text-align: center;
    margin-bottom: 2rem;
}
.card-header h2 {
    font-size: 1.9rem;
    background: linear-gradient(120deg, #145c8a, #0b4a6e);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
}
.form-group { margin-bottom: 1.5rem; display: flex; flex-direction: column; }
label { font-weight: 600; margin-bottom: 0.5rem; color: #1c4e6e; }
input, select {
    padding: 0.9rem 1rem;
    font-size: 1rem;
    border: 1.5px solid #e2e9f2;
    border-radius: 20px;
    background: white;
}
input:focus, select:focus {
    border-color: #1e88e5;
    box-shadow: 0 0 0 4px rgba(30,136,229,0.15);
}
small { color: #6c8dae; font-size: 0.7rem; margin-top: 5px; }
.error-text { color: #dc2626; font-size: 0.8rem; margin-top: 5px; }
.submit-btn {
    width: 100%;
    background: linear-gradient(105deg, #146b9e, #0f5883);
    color: white;
    border: none;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 40px;
    cursor: pointer;
    transition: all 0.25s;
}
.submit-btn:hover {
    background: linear-gradient(105deg, #0f5b87, #0a4263);
    transform: translateY(-2px);
}
.error-message {
    margin-top: 1.5rem;
    padding: 1rem;
    background: #fef2f2;
    color: #b91c1c;
    border-left: 4px solid #dc2626;
    border-radius: 12px;
}
.success-message {
    display: none;
    background: #e6f7e6;
    color: #1e5a1e;
    border-left: 5px solid #2e7d32;
    padding: 12px 20px;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    text-align: center;
}
.success-message.show { display: block; }
.site-footer {
    background: #0a2a3b;
    color: #d4e3f0;
    text-align: center;
    padding: 1rem;
    margin-top: auto;
}