:root {
    --green: #00a88a;
    --green-hover: #6b7280;
    --white: #ffffff;
    --gray-text: #6b7280;
    --gray-light: #f3f4f6;
    --gray-border: #e5e7eb;
    --dark-text: #1f2937;
    --glass: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(0, 168, 138, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--white);
    color: var(--dark-text);
    -webkit-font-smoothing: antialiased;
}

/* NAVbar */
.top-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 22%;
    background: var(--white);
    border-bottom: 1px solid var(--gray-border);
}

.top-bar-left, .top-bar-right {
    display: flex;
    align-items: center;
}

.top-bar-center {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.brand-name {
    font-size: 28px;
    font-weight: 800;
    color: #000000;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Nav buttons - green with white text, grey on hover */
.nav-btn {
    background: var(--green);
    border: 1.5px solid var(--green);
    color: var(--white);
    padding: 9px 28px;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1.5px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.25s ease;
}

.nav-btn:hover {
    background: var(--green-hover);
    border-color: var(--green-hover);
}

/* Language Toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
}

.lang-sep {
    opacity: 0.5;
    color: var(--white);
}

.lang-nl, .lang-en {
    transition: opacity 0.25s ease;
}

.lang-nl.active, .lang-en.active {
    opacity: 1;
}

.lang-nl:not(.active), .lang-en:not(.active) {
    opacity: 0.6;
}

/* Landing */
.landing {
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 40px;
}

/* Big Logo */
.logo-container {
    margin-bottom: 24px;
    z-index: 1;
}

.big-logo {
    width: 650px;
    max-width: 70vw;
    height: auto;
    filter: drop-shadow(0 4px 30px rgba(0, 168, 138, 0.1));
}

/* Portal Card */
.portal-overlay {
    position: relative;
    z-index: 2;
}

.portal-card {
    background: var(--white);
    border: 1px solid var(--gray-border);
    border-radius: 12px;
    padding: 40px 48px;
    width: 400px;
    max-width: 90vw;
    text-align: center;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.08);
}

.portal-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark-text);
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

.portal-subtitle {
    font-size: 13px;
    color: var(--gray-text);
    margin-bottom: 28px;
}

.portal-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.input-group {
    position: relative;
}

.input-group input {
    width: 100%;
    background: var(--gray-light);
    border: 1px solid var(--gray-border);
    border-radius: 6px;
    padding: 14px 16px;
    color: var(--dark-text);
    font-family: inherit;
    font-size: 14px;
    outline: none;
    transition: all 0.25s ease;
}

.input-group label {
    position: absolute;
    left: 16px;
    top: 14px;
    font-size: 14px;
    color: var(--gray-text);
    pointer-events: none;
    transition: all 0.2s ease;
    background: var(--white);
    padding: 0 4px;
}

.input-group input:focus,
.input-group input:not(:placeholder-shown) {
    border-color: var(--green);
    background: var(--white);
}

.input-group input:focus + label,
.input-group input:not(:placeholder-shown) + label {
    top: -8px;
    font-size: 11px;
    color: var(--green);
}

.login-btn {
    background: var(--green);
    color: var(--white);
    border: none;
    border-radius: 6px;
    padding: 14px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.25s ease;
    margin-top: 4px;
}

.login-btn:hover {
    background: var(--green-hover);
}

.forgot-link {
    display: inline-block;
    margin-top: 20px;
    font-size: 12px;
    color: var(--gray-text);
    text-decoration: none;
    transition: color 0.25s ease;
}

.forgot-link:hover {
    color: var(--green);
}

/* Responsive */
@media (max-width: 768px) {
    .top-bar {
        padding: 14px 15%;
    }

    .brand-name {
        font-size: 20px;
    }

    .nav-btn {
        padding: 7px 18px;
        font-size: 12px;
    }

    .big-logo {
        width: 400px;
        max-width: 75vw;
    }

    .portal-card {
        padding: 28px 24px;
        width: 340px;
    }
}

@media (max-width: 480px) {
    .top-bar {
        padding: 12px 10%;
    }

    .brand-name {
        font-size: 16px;
    }

    .nav-btn {
        padding: 6px 14px;
        font-size: 11px;
    }

    .big-logo {
        width: 280px;
        max-width: 80vw;
    }

    .portal-card {
        padding: 24px 20px;
        width: 290px;
    }
}