/* CSS Variables for Theming */
:root {
    /* Colors - Light Theme */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #5fbe19;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --bg-white: #ffffff;
    --bg-gray: #f8fafc;
    --bg-dark: #1e293b;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --transition: all 0.3s ease;

    /* Layout */
    --header-height: 70px;
    --container-width: 1200px;
}

/* Dark Theme */
[data-theme="dark"] {
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --secondary-color: #94a3b8;
    --accent-color: #65d32e;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-light: #94a3b8;
    --bg-white: #1e293b;
    --bg-gray: #0f172a;
    --bg-dark: #020617;
    --border-color: #334155;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    height: 100%;
}

body {
    font-family: 'Arial', 'Helvetica', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
    transition: var(--transition);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 15px;
}

/* Theme Toggle */
.theme-toggle {
    position: relative;
    width: 60px;
    height: 30px;
    background: var(--border-color);
    border-radius: 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 0 5px;
    margin-left: 15px;
    border: none;
}

.theme-toggle::before {
    content: '🌙';
    position: absolute;
    left: 5px;
    font-size: 14px;
}

.theme-toggle::after {
    content: '☀️';
    position: absolute;
    right: 5px;
    font-size: 14px;
}

.theme-toggle-handle {
    width: 22px;
    height: 22px;
    background: var(--primary-color);
    border-radius: 50%;
    transition: transform 0.3s ease;
    transform: translateX(0);
}

[data-theme="dark"] .theme-toggle-handle {
    transform: translateX(30px);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
}

.btn-primary {
    background-color: var(--accent-color);
    color: white;
}

.btn-primary:hover {
    background-color: #4da814;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* Header Styles */
.header {
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    height: var(--header-height);
    transition: var(--transition);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 46px;
    margin-right: 10px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.language-switcher {
    display: flex;
    align-items: center;
    gap: 10px;
}

.language-switcher img {
    width: 32px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.language-switcher img:hover {
    transform: scale(1.1);
}

.help-link img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.help-link:hover img {
    transform: scale(1.1);
}

/* Main Content */
.main-content {
    flex: 1;
    padding-top: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - var(--header-height));
    background: var(--bg-gray);
}

.auth-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 0;
}

.auth-container {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.auth-card {
    background: var(--bg-white);
    padding: 3rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    width: 100%;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-input {
    width: 100%;
    padding: 12px 16px 12px 45px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--bg-white);
    color: var(--text-primary);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(95, 190, 25, 0.1);
}

.form-input::placeholder {
    color: var(--text-light);
}

.input-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--text-light);
    z-index: 1;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 1rem;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--accent-color);
}

.checkbox-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.checkbox-label a {
    color: var(--primary-color);
    text-decoration: underline;
}

.checkbox-label a:hover {
    color: var(--accent-color);
}

.error-message {
    color: #dc2626;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: block;
}

.auth-links {
    text-align: center;
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.auth-links a {
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition);
}

.auth-links a:hover {
    color: var(--accent-color);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 500px;
    padding: 2rem;
    position: relative;
    animation: modalFadeIn 0.3s ease;
}

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

.modal-header {
    margin-bottom: 1.5rem;
    text-align: center;
}

.modal-header h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
}

.modal-body {
    margin-bottom: 1.5rem;
}

.modal-body p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.modal-body ul {
    list-style-type: disc;
    margin-left: 1.5rem;
    color: var(--text-secondary);
}

.modal-body li {
    margin-bottom: 0.5rem;
}

.modal-footer {
    text-align: center;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--text-primary);
}

/* Footer */
.footer {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: 2rem 0;
    text-align: center;
    margin-top: auto;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-light);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-color);
}

.copyright {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Cookies */
.cookies {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: 15px 0;
    z-index: 1001;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
}

.cookies-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 15px;
    gap: 20px;
}

.cookies-text {
    flex: 1;
    font-size: 0.9rem;
}

.cookies-text a {
    color: var(--accent-color);
    text-decoration: underline;
}

.cookies-close {
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    padding: 8px 16px;
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: bold;
    transition: var(--transition);
    white-space: nowrap;
}

.cookies-close:hover {
    background-color: #4da814;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .auth-card {
        padding: 2rem;
        margin: 0 1rem;
    }

    .auth-header h1 {
        font-size: 1.75rem;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }

    .cookies-container {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .header-actions {
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .auth-card {
        padding: 1.5rem;
    }

    .auth-header h1 {
        font-size: 1.5rem;
    }

    .header-actions {
        gap: 8px;
    }

    .language-switcher img,
    .help-link img {
        width: 28px;
        height: 28px;
    }

    .theme-toggle {
        width: 50px;
        height: 25px;
        margin-left: 10px;
    }

    .theme-toggle-handle {
        width: 18px;
        height: 18px;
    }

    [data-theme="dark"] .theme-toggle-handle {
        transform: translateX(25px);
    }
}