:root {
    --bg-gradient-start: #0a1828;
    --bg-gradient-end: #1a2332;
    --form-bg: rgba(20, 30, 40, 0.95);
    --input-bg: rgba(30, 45, 60, 0.8);
    --input-border: rgba(0, 255, 255, 0.3);
    --text-primary: #ffffff;
    --text-secondary: #b0e0e6;
    --text-muted: #7ab8c4;
    --accent-primary: #00ffff;
    --accent-secondary: #00d4d4;
    --shadow-color: rgba(0, 0, 0, 0.5);
}

body.light-mode {
    --bg-gradient-start: #e0f7fa;
    --bg-gradient-end: #b2ebf2;
    --form-bg: rgba(255, 255, 255, 0.98);
    --input-bg: #ffffff;
    --input-border: #00bcd4;
    --text-primary: #1a1a1a;
    --text-secondary: #00838f;
    --text-muted: #00acc1;
    --accent-primary: #00bcd4;
    --accent-secondary: #0097a7;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    transition: background 0.3s ease;
}

/* Top Controls */
.top-controls {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    gap: 15px;
    align-items: center;
}

/* Theme Toggle Switch */
.theme-toggle-wrapper {
    display: flex;
    align-items: center;
}

#themeToggle {
    display: none;
}

.theme-toggle-label {
    display: flex;
    align-items: center;
    background: var(--form-bg);
    border-radius: 50px;
    padding: 8px 12px;
    cursor: pointer;
    box-shadow: 0 4px 15px var(--shadow-color);
    transition: all 0.3s ease;
    position: relative;
    gap: 5px;
}

.theme-toggle-label:hover {
    box-shadow: 0 6px 20px var(--shadow-color);
}

.theme-toggle-label .sun-icon,
.theme-toggle-label .moon-icon {
    font-size: 20px;
    transition: all 0.3s ease;
}

.theme-toggle-label .sun-icon {
    opacity: 0.3;
}

.theme-toggle-label .moon-icon {
    opacity: 1;
}

body.light-mode .theme-toggle-label .sun-icon {
    opacity: 1;
}

body.light-mode .theme-toggle-label .moon-icon {
    opacity: 0.3;
}

/* Language Selector - Custom Dropdown */
.language-selector {
    position: relative;
}

.language-dropdown {
    position: relative;
    min-width: 180px;
}

.language-selected {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 15px;
    background: var(--form-bg);
    border-radius: 25px;
    cursor: pointer;
    box-shadow: 0 4px 15px var(--shadow-color);
    transition: all 0.3s ease;
    user-select: none;
}

.language-selected:hover {
    box-shadow: 0 6px 20px var(--shadow-color);
    transform: translateY(-1px);
}

.language-dropdown.open .language-selected {
    box-shadow: 0 0 0 3px rgba(0, 255, 255, 0.3);
    border-radius: 25px 25px 0 0;
}

#selectedFlag {
    width: 24px;
    height: 18px;
    border-radius: 3px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    flex-shrink: 0;
}

#selectedLanguageName {
    flex: 1;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
}

.dropdown-arrow {
    color: var(--accent-primary);
    font-size: 12px;
    transition: transform 0.3s ease;
}

.language-dropdown.open .dropdown-arrow {
    transform: rotate(180deg);
}

/* Dropdown Options - ALAPBÓL REJTVE! */
.language-options {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--form-bg);
    border-radius: 0 0 25px 25px;
    box-shadow: 0 8px 25px var(--shadow-color);
    max-height: 0 !important;
    overflow: hidden !important;
    opacity: 0 !important;
    visibility: hidden !important;
    transition: all 0.3s ease;
    z-index: 1000;
    pointer-events: none;
}

.language-dropdown.open .language-options {
    max-height: 400px !important;
    overflow-y: auto !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    padding: 5px 0 10px 0;
}

/* Custom scrollbar for dropdown */
.language-options::-webkit-scrollbar {
    width: 6px;
}

.language-options::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
}

.language-options::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 10px;
}

.language-options::-webkit-scrollbar-thumb:hover {
    background: var(--accent-secondary);
}

/* Language Option Item */
.language-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 15px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.language-option:hover {
    background: rgba(0, 255, 255, 0.1);
    padding-left: 20px;
}

.language-option.active {
    background: rgba(0, 255, 255, 0.15);
    border-left: 3px solid var(--accent-primary);
}

.language-option .fi {
    width: 24px;
    height: 18px;
    border-radius: 3px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    flex-shrink: 0;
}

.language-option-name {
    flex: 1;
    font-size: 14px;
}

/* Container */
.container {
    width: 100%;
    max-width: 450px;
}

.form-wrapper {
    background: var(--form-bg);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 60px var(--shadow-color);
    backdrop-filter: blur(10px);
    transition: background 0.3s ease;
}

/* Logo */
.logo {
    text-align: center;
    margin-bottom: 30px;
}

.logo h1 {
    font-size: 36px;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 5px;
    font-weight: 700;
}

.logo-image {
    max-width: 200px;
    height: auto;
    display: block;
    margin: 0 auto 10px auto;
    transition: opacity 0.3s ease;
}

.logo .subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Form Container */
.form-container {
    display: none;
}

.form-container.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

h2 {
    text-align: center;
    color: var(--text-primary);
    margin-bottom: 30px;
    font-size: 24px;
}

.form-description {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 25px;
    line-height: 1.5;
}

/* Form Elements */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.form-group {
    position: relative;
    margin-bottom: 25px;
}

.form-group.password-group input {
    padding-right: 45px;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    font-size: 18px;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.toggle-password:hover {
    opacity: 1;
}

.toggle-password .eye-icon {
    display: block;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--input-border);
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: var(--input-bg);
    color: var(--text-primary);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 255, 255, 0.1);
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label {
    top: -10px;
    left: 10px;
    font-size: 12px;
    background: var(--form-bg);
    padding: 0 5px;
    color: var(--accent-primary);
}

.form-group label {
    position: absolute;
    left: 15px;
    top: 12px;
    color: var(--text-muted);
    transition: all 0.3s ease;
    pointer-events: none;
}

/* Form Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 10px;
}

.checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.checkbox input {
    margin-right: 8px;
    cursor: pointer;
    width: 18px;
    height: 18px;
}

.checkbox span {
    font-size: 14px;
    color: var(--text-secondary);
}

.forgot-password {
    color: var(--accent-primary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.forgot-password:hover {
    color: var(--accent-secondary);
}

/* Primary Button */
.btn-primary {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: #000000;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 255, 255, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 255, 255, 0.6);
}

body.light-mode .btn-primary {
    color: #ffffff;
}

.btn-primary:active {
    transform: translateY(0);
}

/* Form Footer */
.form-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-secondary);
}

.form-footer a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
    margin-left: 5px;
    transition: color 0.3s ease;
}

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

/* Message Box */
.message-box {
    margin-top: 20px;
    padding: 15px;
    border-radius: 10px;
    display: none;
    font-size: 14px;
    animation: slideIn 0.3s ease;
}

.message-box.success {
    background: rgba(40, 167, 69, 0.2);
    color: #28a745;
    border: 1px solid #28a745;
    display: block;
}

body.light-mode .message-box.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message-box.error {
    background: rgba(220, 53, 69, 0.2);
    color: #dc3545;
    border: 1px solid #dc3545;
    display: block;
}

body.light-mode .message-box.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .top-controls {
        top: 10px;
        right: 10px;
        gap: 10px;
    }

    .form-wrapper {
        padding: 30px 20px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .logo h1 {
        font-size: 28px;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
    }

    .language-selector select {
        font-size: 12px;
        padding: 8px 12px;
    }

    .theme-toggle-label {
        padding: 6px 10px;
    }

    .theme-toggle-label .sun-icon,
    .theme-toggle-label .moon-icon {
        font-size: 16px;
    }
}

/* RTL Support for Arabic */
html[dir="rtl"] {
    direction: rtl;
}

html[dir="rtl"] .form-group label {
    left: auto;
    right: 15px;
}

html[dir="rtl"] .form-group input:focus + label,
html[dir="rtl"] .form-group input:not(:placeholder-shown) + label {
    left: auto;
    right: 10px;
}

html[dir="rtl"] .checkbox input {
    margin-right: 0;
    margin-left: 8px;
}

html[dir="rtl"] .top-controls {
    right: auto;
    left: 20px;
}

html[dir="rtl"] .form-footer a {
    margin-left: 0;
    margin-right: 5px;
}

/* Password Requirements and Match Boxes */
.password-requirements {
    margin-top: -15px;
    margin-bottom: 25px;
    padding: 5px 10px 10px;
    background-color: rgba(0, 255, 255, 0.1);
    border-radius: 5px;
    font-size: 12px;
}

.password-match-box {
    margin-top: -15px;
    margin-bottom: 25px;
    padding: 5px 10px 10px;
    background-color: rgba(0, 255, 255, 0.1);
    border-radius: 5px;
    font-size: 12px;
}

.password-requirements ul,
.password-match-box ul {
    margin: 5px 0;
    padding-left: 20px;
    list-style-type: disc;
}

.password-requirements li,
.password-match-box li {
    margin: 3px 0;
}

.password-requirements li.met,
.password-match-box li.met {
    color: #00ff00;
}

.password-requirements li.unmet,
.password-match-box li.unmet {
    color: #ff5555;
}