:root {
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --flabs-blue: #007aff;
    --bi-pink: #D70071;
    --bi-purple: #9C4E97;
    --bi-blue: #0035A9;
    --success-color: #34c759;
    --error-color: #ff3b30;
    --bg-color: #fdfdff;
    --fg-color: #ffffff;
    --text-color: #212529;
    --muted-text-color: #6c757d;
    --border-color: #dee2e6;
    --shadow-color: rgba(0, 0, 0, 0.05);
    --gradient-start: #e0f7ff;
    --gradient-end: #b3e5fc;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #000000;
        --fg-color: #1c1c1e;
        --text-color: #f8f9fa;
        --muted-text-color: #8e8e93;
        --border-color: #3a3a3c;
        --shadow-color: rgba(0, 0, 0, 0.25);
        --gradient-start: #011c2e;
        --gradient-end: #000b14;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

html {
    min-height: 100%;
}

body {
    font-family: var(--font-family);
    margin: 0;
    background-image: linear-gradient(170deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    background-attachment: fixed;
    color: var(--text-color);
    animation: fadeIn 0.6s ease-out;
}

.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.login-content-wrapper {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 3rem;
    align-items: start;
}

.vertical-separator {
    width: 1px;
    background-color: var(--border-color);
    align-self: stretch;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.content-grid-single-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.app-header, .portal-header, .uvjeti-header {
    display: flex;
    align-items: center;
    padding-bottom: 2rem;
    margin-bottom: 2.5rem;
}

.login-header {
    justify-content: center;
    border-bottom: none;
}

.uvjeti-header {
    justify-content: space-between;
    border-bottom: none;
}

.portal-header {
    display: block;
    border-bottom: 1px solid var(--border-color);
}

    .portal-header h1 {
        margin-bottom: 1.5rem;
    }

.header-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

h1, h2 {
    font-weight: 600;
}

h1 {
    font-size: 2.2rem;
}

h2 {
    font-size: 1.4rem;
    margin: 0 0 1.5rem 0;
}

.login-content-wrapper .column h2 {
    text-align: center;
    font-size: 1.6rem;
}

h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
}

.login-card, .card {
    background: var(--fg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 5px 15px var(--shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: slideUp 0.5s ease-out forwards;
}

    .card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 30px var(--shadow-color);
    }

.info-cards-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-box {
    background: var(--fg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 1.5rem;
    box-shadow: 0 5px 15px var(--shadow-color);
}

    .card p, .info-box p {
        margin: 0;
        color: var(--muted-text-color);
        font-size: 0.9rem;
        line-height: 1.5;
    }

.form-field {
    margin-bottom: 1.5rem;
}

    .form-field label {
        display: block;
        font-size: 0.9rem;
        font-weight: 500;
        margin-bottom: 0.75rem;
    }

    .form-field input {
        width: 100%;
        padding: 0.9rem;
        box-sizing: border-box;
        border: 1px solid var(--border-color);
        border-radius: 8px;
        background-color: var(--bg-color);
        color: var(--text-color);
        font-size: 1rem;
        transition: all 0.2s;
    }

        .form-field input:focus {
            border-color: var(--flabs-blue);
            outline: none;
            box-shadow: 0 0 0 3px color-mix(in srgb, var(--flabs-blue) 20%, transparent);
        }

button, .button-primary, .button-secondary, .service-button {
    font-family: inherit;
    cursor: pointer;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    transition: all 0.25s ease;
    text-decoration: none;
    padding: 0.8rem 1.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

#login-button {
    width: 100%;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.button-primary, #logout-button {
    color: white;
    background: var(--flabs-blue);
}

    .button-primary:hover:not(:disabled) {
        filter: brightness(1.15);
        transform: translateY(-2px);
    }

.button-secondary {
    background: var(--fg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.service-button {
    padding: 0.7rem 1.2rem;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    background: var(--fg-color);
    margin-top: 1rem;
}

    .service-button:hover {
        border-color: var(--flabs-blue);
        color: var(--flabs-blue);
        transform: translateY(-2px);
    }

.action-buttons {
    margin-top: 1.2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tab-navigation {
    display: flex;
    gap: 1.5rem;
}

.tab-button {
    background: none;
    padding: 0.5rem 0;
    color: var(--muted-text-color);
    font-weight: 500;
    border-bottom: 3px solid transparent;
}

    .tab-button.active {
        color: var(--text-color);
        border-bottom-color: var(--flabs-blue);
    }

.app-footer {
    text-align: center;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--muted-text-color);
    font-size: 0.85rem;
}

    .app-footer p {
        margin: 0.25rem 0;
    }

    .app-footer .footer-link {
        text-decoration: none;
        font-weight: 600;
        color: inherit;
    }

        .app-footer .footer-link:hover {
            color: var(--text-color);
        }

.specfgrad {
    font-weight: 700;
    background: linear-gradient(90deg, var(--bi-pink), var(--bi-purple), var(--bi-blue));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}

#login-button .loader, #login-button .icon-success, #login-button .icon-error {
    display: none;
}

#login-button.loading .button-text {
    visibility: hidden;
}

#login-button.loading .loader {
    display: block;
    position: absolute;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

#login-button.success, #login-button.error {
    color: white;
}

#login-button.success {
    background-color: var(--success-color);
}

#login-button.error {
    background-color: var(--error-color);
}

    #login-button.success .button-text, #login-button.error .button-text {
        visibility: hidden;
    }

    #login-button.success .icon-success, #login-button.error .icon-error {
        display: block;
        position: absolute;
        font-size: 1.5rem;
    }

.card--highlighted {
    border: 2px solid var(--flabs-blue);
}

.tab-content {
    display: none;
}

    .tab-content.active {
        display: grid;
        animation: slideUp 0.4s ease-out;
    }

.error-message {
    color: var(--error-color);
    margin-bottom: 1rem;
    min-height: 1.2em;
    text-align: center;
}

.icon {
    width: 22px;
    height: 22px;
    stroke-width: 1.5;
    color: var(--muted-text-color);
}

h3 .icon {
    color: var(--flabs-blue);
}

@media (max-width: 992px) {
    .login-content-wrapper {
        grid-template-columns: 1fr;
    }

    .vertical-separator {
        display: none;
    }

    .main-container {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 768px) {
    .header-controls {
        flex-direction: column;
        gap: 1.5rem;
        align-items: flex-start;
    }

    .tab-navigation {
        width: 100%;
        justify-content: space-around;
    }

    .uvjeti-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .main-container {
        padding: 1.5rem 1rem;
    }

    h1 {
        font-size: 1.8rem;
    }

    .login-content-wrapper .column h2 {
        font-size: 1.4rem;
    }
}