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

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 20%, var(--accent-primary-glow) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, color-mix(in srgb, var(--accent-secondary) 6%, transparent) 0%, transparent 50%),
        linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
    z-index: 0;
}

body::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(var(--accent-primary-glow) 1px, transparent 1px),
        linear-gradient(90deg, var(--accent-primary-glow) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: 1;
    opacity: 0.1;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: pulse 8s ease-in-out infinite;
}

.glow-orb-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-primary-glow);
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.glow-orb-2 {
    width: 300px;
    height: 300px;
    background: color-mix(in srgb, var(--accent-secondary) 12%, transparent);
    bottom: -50px;
    right: -50px;
    animation-delay: 4s;
}

.glow-orb-3 {
    width: 200px;
    height: 200px;
    background: var(--success-glow);
    top: 50%;
    right: 10%;
    animation-delay: 2s;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.4;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.6;
    }
}

.auth-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 440px;
    padding: 20px;
}

.auth-card {
    background: var(--bg-modal);
    backdrop-filter: blur(20px);
    border-radius: 16px;
    padding: 48px 40px;
    box-shadow:
        var(--shadow-lg),
        0 0 1px var(--accent-primary-glow),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    animation: slideUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-header {
    text-align: center;
    margin-bottom: 36px;
}

.logo {
    font-size: 56px;
    margin-bottom: 16px;
    filter: drop-shadow(0 0 20px var(--accent-primary-glow));
}

.auth-header h1 {
    font-size: 28px;
    font-weight: 700;
    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: 8px;
    letter-spacing: -0.5px;
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.alert {
    padding: 14px 18px;
    border-radius: 8px;
    margin-bottom: 24px;
    font-size: 14px;
    font-weight: 500;
    animation: shake 0.5s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.alert-error {
    background: color-mix(in srgb, var(--error-color) 15%, transparent);
    color: var(--error-color);
    border: 1px solid color-mix(in srgb, var(--error-color) 30%, transparent);
}

.alert-success {
    background: color-mix(in srgb, var(--success-color) 15%, transparent);
    color: var(--success-color);
    border: 1px solid color-mix(in srgb, var(--success-color) 30%, transparent);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.3px;
}

.input-wrapper {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 16px;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.password-toggle:hover,
.password-toggle.active {
    color: var(--accent-primary);
}

.input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 18px;
    pointer-events: none;
    opacity: 0.7;
}

.form-control {
    width: 100%;
    padding: 14px 14px 14px 46px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    transition: all 0.2s ease;
    background: color-mix(in srgb, var(--bg-primary) 60%, transparent);
    color: var(--text-primary);
}

.input-wrapper .form-control {
    padding-right: 44px;
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control.is-valid {
    border-color: var(--success-color);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--success-color) 40%, transparent);
}

.form-control.is-invalid {
    border-color: var(--error-color);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--error-color) 40%, transparent);
}

.field-hint {
    margin-top: 6px;
    font-size: 12px;
    color: var(--text-secondary);
    min-height: 16px;
}

.field-hint.hint-error {
    color: var(--error-color);
}

.field-hint.hint-success {
    color: var(--success-color);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: color-mix(in srgb, var(--bg-primary) 80%, transparent);
    box-shadow: 0 0 0 3px var(--accent-primary-glow);
}

.btn-primary {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--btn-primary-gradient-end) 100%);
    color: var(--btn-primary-text);
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px var(--btn-primary-shadow);
    position: relative;
    overflow: hidden;
    margin-top: 8px;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--btn-primary-shadow-hover);
    background: linear-gradient(135deg, var(--btn-primary-gradient-end) 0%, var(--accent-tertiary) 100%);
}

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

.auth-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
}

.auth-footer a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
}

.auth-footer a:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}

.language-selector {
    position: absolute;
    top: 24px;
    right: 24px;
    z-index: 100;
}

.lang-btn {
    background: var(--bg-modal);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 14px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    transition: all 0.2s;
    box-shadow: var(--shadow-md);
}

.lang-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-hover);
}

.lang-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    min-width: 160px;
}

.lang-dropdown.show {
    display: block;
    animation: slideDown 0.2s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.lang-option {
    padding: 10px 14px;
    cursor: pointer;
    transition: background 0.15s;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.lang-option:hover {
    background: var(--bg-hover);
}

.lang-option.active {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: var(--accent-on-text);
}

.password-match-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    font-size: 12px;
    font-weight: 500;
}

.password-match-indicator.match {
    color: var(--success-color);
}

.password-match-indicator.no-match {
    color: var(--error-color);
}

@media (max-width: 480px) {
    .auth-container {
        overflow-y: auto;
        max-height: 100vh;
        max-height: 100dvh;
    }

    .auth-card {
        padding: 32px 24px;
        margin-bottom: calc(20px + env(safe-area-inset-bottom, 0px));
    }

    .auth-header h1 {
        font-size: 24px;
    }

    .logo {
        font-size: 48px;
    }

    .form-group {
        margin-bottom: 14px;
    }
}