/** Core.css - Layout, typography, spacing, sizing **/

:root {
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-xxl: 4rem;

    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-pill: 12px;

    /* Font Sizes */
    --font-size-xs: 11px;
    --font-size-sm: 12px;
    --font-size-base: 14px;
    --font-size-md: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;
    --font-size-3xl: 48px;

    /* Font Family */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;

    /* Font Weight */
    --font-weight-regular: 400;
    --font-weight-medium: 500;

    /* Line Height */
    --line-height-tight: 1.2;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.7;

    /* Widths & Max Widths */
    --max-width-container: 1200px;
    --width-full: 100%;

    /* Transitions */
    --transition-fast: 0.2s;

    /* Shadow */
    --shadow-modal: 0 10px 40px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: var(--font-family);
    line-height: var(--line-height-normal);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    backdrop-filter: blur(10px);
    border-bottom: 1px solid;
    padding: var(--space-lg) var(--space-xl);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    max-width: var(--max-width-container);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-medium);
}

.nav-links {
    display: flex;
    gap: var(--space-xl);
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    font-size: var(--font-size-base);
    border-bottom: 2px solid transparent;
    padding-bottom: var(--space-xs);
    transition: border-color var(--transition-fast);
}

.login-btn {
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    transition: background var(--transition-fast);
}

main {
    flex: 1;
    max-width: var(--max-width-container);
    margin: 0 auto;
    width: var(--width-full);
    padding: var(--space-xxl) var(--space-xl);
    display: flex;
    align-items: flex-start;
    gap: var(--space-xxl);
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-md);
    line-height: var(--line-height-tight);
}

.hero-content p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-xl);
    line-height: var(--line-height-relaxed);
}

.cta-buttons {
    display: flex;
    gap: var(--space-md);
}

.cta-primary,
.cta-secondary {
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    padding: var(--space-md) var(--space-xl);
    display: inline-block;
}

.cta-secondary {
    padding: 0.875rem 1.875rem;
}

.sidebar {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    min-width: 0;
}

.news-container,
.servers-container {
    border-radius: var(--border-radius-lg);
    border: 1px solid;
    padding: var(--space-lg);
}

.container-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.news-item {
    border-bottom: 1px solid;
    padding-bottom: var(--space-md);
    margin-bottom: var(--space-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.news-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.news-item:hover {
    padding-left: var(--space-sm);
}

.news-date {
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-xs);
}

.news-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-xs);
}

.news-excerpt {
    font-size: 13px;
    line-height: 1.5;
}

.server-card {
    border: 1px solid;
    border-radius: var(--border-radius-md);
    padding: var(--space-md);
    margin-bottom: 0.75rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.server-card:last-child {
    margin-bottom: 0;
}

.server-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.server-name {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
}

.server-status {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    padding: var(--space-xs) 0.75rem;
    border-radius: var(--border-radius-pill);
}

.server-meta {
    font-size: var(--font-size-sm);
    display: flex;
    justify-content: space-between;
}

.view-all {
    font-size: 13px;
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    margin-top: 0.75rem;
    display: inline-block;
    transition: color var(--transition-fast);
}

footer {
    border-top: 1px solid;
    padding: var(--space-xl);
    margin-top: var(--space-xxl);
}

.footer-content {
    max-width: var(--max-width-container);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-text {
    font-size: var(--font-size-base);
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.footer-links a {
    text-decoration: none;
    font-size: var(--font-size-base);
    transition: color var(--transition-fast);
}

/* Policy Pages */
.policy-container {
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.policy-content {
    border-radius: 12px;
    padding: 3rem;
    line-height: 1.8;
}

.policy-header {
    margin-bottom: 2rem;
    border-bottom: 2px solid;
    padding-bottom: 2rem;
}

.policy-header h1 {
    font-size: 36px;
    margin-bottom: 0.5rem;
}

.policy-header p {
    font-size: 14px;
}

.policy-section {
    margin-bottom: 2.5rem;
}

.policy-section h2 {
    font-size: 20px;
    margin-bottom: 1rem;
    border-left: 4px solid;
    padding-left: 1rem;
}

.policy-section h3 {
    font-size: 16px;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.policy-section p {
    margin-bottom: 1rem;
    font-size: 15px;
}

.policy-section ul {
    list-style: none;
    padding-left: 0;
}

.policy-section li {
    margin-bottom: 0.75rem;
    padding-left: 2rem;
    position: relative;
    font-size: 15px;
}

.policy-section li:before {
    content: "•";
    position: absolute;
    left: 0;
    font-weight: bold;
}

.policy-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid;
    font-size: 14px;
}

/* Modal */
#registrationModal,
#loginModal,
#logoutModal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    align-items: center;
    justify-content: center;
    animation: modalFadeIn 0.2s ease-out;
}

#registrationModal.active,
#loginModal.active,
#logoutModal.active {
    display: flex;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.registration-modal-content {
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-modal);
    position: relative;
    animation: modalSlideUp 0.3s ease-out;
}

.login-modal-content {
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-modal);
    position: relative;
    animation: modalSlideUp 0.3s ease-out;
}

.logout-modal-content {
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-modal);
    position: relative;
    animation: modalSlideUp 0.3s ease-out;
}

/* Logout modal specific close button */
.logout-modal-close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast) ease;
    line-height: 1;
    z-index: 10;
}

/* Logout modal inner content wrapper */
.logout-modal-inner {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Logout modal header */
.logout-modal-header {
    margin-bottom: 1rem;
}

.logout-modal-header h2 {
    font-size: 24px;
    font-weight: var(--font-weight-medium);
    margin: 0 0 0.5rem 0;
}

.logout-modal-header p {
    font-size: var(--font-size-base);
    margin: 0;
}

@keyframes modalSlideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.loading {
    display: inline-block;
    animation: spin 0.8s linear infinite;
    margin-right: 0.5rem;
}

.modal-close-btn {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast) ease;
    line-height: 1;
}

.modal-header {
    margin-bottom: 2rem;
}

.modal-header h2 {
    font-size: 24px;
    font-weight: var(--font-weight-medium);
    margin: 0 0 0.5rem 0;
}

.modal-header p {
    font-size: var(--font-size-base);
    margin: 0;
}

#registrationForm,
#loginForm {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: var(--font-weight-medium);
    margin-bottom: 0.5rem;
}

.form-group input[type="email"],
.form-group input[type="text"],
.form-group input[type="password"] {
    padding: 0.75rem;
    border: 1px solid;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    font-family: inherit;
    box-sizing: border-box;
    transition: border-color var(--transition-fast) ease;
}

.form-group input[type="email"]:hover,
.form-group input[type="text"]:hover,
.form-group input[type="password"]:hover {
    border-color: var(--modal-input-hover);
}

.form-group input[type="email"]:focus,
.form-group input[type="text"]:focus,
.form-group input[type="password"]:focus {
    border-color: var(--modal-input-focus);
    outline: none;
}

.form-group input::placeholder {
    color: #bbb;
}



.form-checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin: 0.5rem 0;
}

.form-checkbox-group input[type="checkbox"] {
    margin-top: 4px;
    cursor: pointer;
    width: 16px;
    height: 16px;
}

.form-checkbox-group label {
    font-size: 12px;
    cursor: pointer;
    line-height: 1.4;
    margin: 0;
}

.form-checkbox-group a {
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast) ease;
}

/* Form Validation Errors */
.form-group.error input,
.form-checkbox-group.error input {
    border-color: #dc3545 !important;
}

.form-error {
    font-size: 12px;
    margin-top: 0.25rem;
    display: block;
}

/* Form Success Message */
.form-success {
    font-size: 14px;
    padding: 1rem;
    border-radius: var(--border-radius-md);
    margin-bottom: 1rem;
    text-align: center;
    font-weight: var(--font-weight-medium);
}

/* Logout Modal */
.logout-modal-info {
    font-size: 14px;
    padding: 1rem;
    border-radius: var(--border-radius-md);
    text-align: center;
    line-height: 1.5;
}

.logout-modal-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.logout-modal-confirm,
.logout-modal-cancel {
    width: 100%;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.logout-modal-status {
    font-size: 13px;
    padding: 0.75rem;
    border-radius: var(--border-radius-md);
    text-align: center;
    margin-top: 1rem;
}

.logout-modal-status.logout-success {
    font-weight: var(--font-weight-medium);
}

.logout-modal-status.logout-error {
    font-weight: var(--font-weight-medium);
}


.form-submit {
    border: none;
    padding: 0.875rem 1.5rem;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    margin-top: 0.5rem;
    transition: background var(--transition-fast) ease;
}

.form-submit:active {
    transform: scale(0.98);
}

.modal-footer {
    text-align: center;
    font-size: var(--font-size-base);
    margin-top: 1.5rem;
}

.modal-footer a {
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast) ease;
}

.modal-footer-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
    text-align: center;
}

.modal-footer-links a {
    font-size: var(--font-size-base);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast) ease;
}

.modal-footer-links .forgot-password {
    font-size: 13px;
}

/* Responsive */
@media (max-width: 1024px) {
    main {
        flex-direction: column;
        padding: var(--space-xl) var(--space-md);
        gap: var(--space-xl);
    }

    .sidebar {
        flex-direction: row;
    }

    .news-container,
    .servers-container {
        flex: 1;
    }
}

@media (max-width: 768px) {
    main {
        flex-direction: column;
        padding: var(--space-xl) var(--space-md);
        gap: var(--space-xl);
    }

    .hero-content h1 {
        font-size: var(--font-size-2xl);
    }

    .nav-links {
        gap: var(--space-md);
    }

    .logo {
        display: none;
    }

    .sidebar {
        flex-direction: column;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--space-lg);
        text-align: center;
    }

    .cta-buttons {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .registration-modal-content,
    .login-modal-content,
    .logout-modal-content {
        margin: 1rem;
        max-width: calc(100% - 2rem);
    }
}