:root {
    --success-color: #0bc58c;
    --warning-color: #ff8b00;
    --danger-color: #f04452;
    --alert-danger-bg: #f8d7da;
    --alert-danger-border: #dc3545;
    --alert-danger-color: #721c24;
    --alert-success-bg: #d4edda;
    --alert-success-border: #28a745;
    --alert-success-color: #155724;
}

[data-theme="dark"] {
    --alert-danger-bg: #3a1a1d;
    --alert-danger-border: #dc3545;
    --alert-danger-color: #ffb3ba;
    --alert-success-bg: #1a3a2d;
    --alert-success-border: #28a745;
    --alert-success-color: #b3ffcc;
}

.register-container {
    display: flex;
    justify-content: center;
    padding: 120px 16px 80px;
    min-height: calc(100vh - 72px);
}

.register-card {
    width: 100%;
    max-width: 840px;
    background: var(--card-bg);
    border-radius: 24px;
    border: 1px solid var(--border-color);
    box-shadow: 0 24px 80px rgba(25, 31, 40, 0.1);
    overflow: hidden;
}

.register-header {
    padding: 48px 56px 32px;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.register-header h3 {
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 12px;
}

.register-header .subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
}

.register-body {
    padding: 48px 56px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.alert-custom {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-radius: 14px;
    border-left-width: 4px !important;
}

.alert-custom.alert-danger {
    border-left: 4px solid var(--alert-danger-border);
    background: var(--alert-danger-bg);
    color: var(--alert-danger-color);
}

.alert-custom.alert-success {
    border-left: 4px solid var(--alert-success-border);
    background: var(--alert-success-bg);
    color: var(--alert-success-color);
}

.social-login {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.social-buttons {
    display: flex;
    gap: 12px;
}

.btn-social {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 16px;
    border-radius: 12px;
    border: none;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-social:hover {
    transform: translateY(-2px);
}

.btn-kakao {
    background: #fee500;
    color: #181600;
}

.btn-naver {
    background: #03c75a;
    color: #fff;
}

.or-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

.or-divider::before,
.or-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-group + .input-group {
    margin-top: 16px;
}

.input-wrapper {
    position: relative;
}

.input-wrapper input {
    width: 100%;
    padding: 14px 16px 14px 48px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.input-wrapper input::placeholder {
    color: transparent;
}

.input-wrapper input:focus::placeholder {
    color: var(--text-tertiary);
}

.input-wrapper input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--bg-primary);
    box-shadow: 0 0 0 4px rgba(49, 130, 246, 0.12);
}

[data-theme="dark"] .input-wrapper input:focus {
    background: var(--bg-secondary);
}

.input-wrapper label {
    position: absolute;
    top: 50%;
    left: 48px;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--text-tertiary);
    transition: all 0.2s ease;
    font-size: 0.9rem;
}

.input-wrapper input:focus + label,
.input-wrapper input:not(:placeholder-shown) + label {
    top: 10px;
    font-size: 0.72rem;
    color: var(--primary-color);
}

.input-icon {
    position: absolute;
    top: 50%;
    left: 16px;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: 1rem;
}

.toggle-password {
    position: absolute;
    top: 50%;
    right: 16px;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s ease;
    font-size: 1rem;
}

.toggle-password:hover {
    color: var(--text-primary);
}

.toggle-password:focus {
    outline: none;
    color: var(--primary-color);
}

.validation-feedback {
    font-size: 0.8rem;
    color: var(--text-secondary);
    min-height: 18px;
}

.validation-feedback.success {
    color: var(--success-color);
}

.validation-feedback.error {
    color: var(--danger-color);
}

/* Email verification styles */
.email-verification-wrapper,
.verification-code-wrapper {
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.email-verification-wrapper .input-wrapper,
.verification-code-wrapper .input-wrapper {
    flex: 1;
}

.btn-verify-email,
.btn-verify-code {
    position: relative;
    padding: 14px 20px;
    border-radius: 10px;
    border: none;
    background: var(--primary-color);
    color: #fff;
    font-weight: 700;
    font-size: 0.85rem;
    white-space: nowrap;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.2s ease;
    min-width: 120px;
    height: 48px;
}

.btn-verify-email:hover:not(:disabled),
.btn-verify-code:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-verify-email:disabled,
.btn-verify-code:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-verify-email.is-loading,
.btn-verify-code.is-loading {
    pointer-events: none;
}

.btn-verify-email .verify-loading,
.btn-verify-code .verify-loading {
    display: none;
    position: absolute;
    inset: 0;
    align-items: center;
    justify-content: center;
}

.btn-verify-email.is-loading .verify-text,
.btn-verify-code.is-loading .verify-text {
    opacity: 0;
}

.btn-verify-email.is-loading .verify-loading,
.btn-verify-code.is-loading .verify-loading {
    display: flex;
}

.btn-verify-email.verified,
.btn-verify-code.verified {
    background: var(--success-color);
}

.spinner-small {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.35);
    border-top-color: #fff;
    animation: spin 0.8s linear infinite;
}

.verification-timer {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--warning-color);
    font-weight: 600;
}

.verification-timer i {
    font-size: 0.9rem;
}

.password-strength {
    display: none;
    align-items: center;
    gap: 12px;
    margin-top: 4px;
}

.password-strength.active {
    display: flex;
}

.strength-bar {
    flex: 1;
    height: 6px;
    background: var(--bg-secondary);
    border-radius: 999px;
    overflow: hidden;
}

.strength-fill {
    height: 100%;
    width: 0;
    transition: width 0.3s ease, background-color 0.3s ease;
    border-radius: 999px;
}

.strength-fill.weak {
    width: 33%;
    background: #f04452;
}

.strength-fill.medium {
    width: 66%;
    background: #ff8b00;
}

.strength-fill.strong {
    width: 100%;
    background: #0bc58c;
}

.strength-text {
    font-size: 0.8rem;
    font-weight: 600;
    min-width: 80px;
    text-align: right;
    transition: color 0.3s ease;
}

.strength-text.weak {
    color: #f04452;
}

.strength-text.medium {
    color: #ff8b00;
}

.strength-text.strong {
    color: #0bc58c;
}

.user-type-options {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.user-type-option {
    position: relative;
    flex: 1 1 200px;
}

.user-type-option input {
    position: absolute;
    opacity: 0;
}

.user-type-option label {
    display: block;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 18px 20px;
    background: var(--bg-secondary);
    cursor: pointer;
    transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

.user-type-option input:checked + label {
    border-color: var(--primary-color);
    background: var(--primary-light);
    transform: translateY(-2px);
}

.user-type-content {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    color: var(--text-primary);
}

.terms-check {
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    background: var(--bg-secondary);
    display: grid;
    gap: 12px;
}

.terms-link {
    color: var(--primary-color);
    font-weight: 600;
}

.btn-register {
    position: relative;
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: 14px;
    background: var(--primary-color);
    color: #fff;
    font-weight: 800;
    font-size: 1.05rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    margin-top: 8px;
}

.btn-register:hover:not(.is-loading) {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 16px 28px rgba(49, 130, 246, 0.22);
}

.btn-register.is-loading {
    pointer-events: none;
    opacity: 0.85;
}

.btn-register .loading {
    display: none;
    position: absolute;
    inset: 0;
    align-items: center;
    justify-content: center;
}

.btn-register.is-loading .btn-text {
    opacity: 0;
}

.btn-register.is-loading .loading {
    display: flex;
}

.spinner {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.35);
    border-top-color: #fff;
    animation: spin 0.8s linear infinite;
}

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

.bottom-links {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

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

.home-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

@media (max-width: 992px) {
    .register-card {
        max-width: 680px;
    }
}

@media (max-width: 768px) {
    .register-container {
        padding: 104px 12px 64px;
        min-height: calc(100vh - 68px);
    }

    .register-card {
        border-radius: 20px;
    }

    .register-header {
        padding: 40px 32px 24px;
    }

    .register-body {
        padding: 36px 32px;
    }

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

    .user-type-options {
        gap: 12px;
    }

    .user-type-option {
        flex: 1 1 100%;
    }

    .email-verification-wrapper,
    .verification-code-wrapper {
        flex-direction: column;
        gap: 12px;
        align-items: stretch;
    }

    .email-verification-wrapper .input-wrapper,
    .verification-code-wrapper .input-wrapper {
        width: 100%;
    }

    .btn-verify-email,
    .btn-verify-code {
        width: 100%;
        min-width: unset;
    }
}

@media (max-width: 576px) {
    .register-container {
        padding: 92px 10px 56px;
        min-height: calc(100vh - 64px);
    }

    .register-card {
        border-radius: 16px;
    }

    .register-header h3 {
        font-size: 1.7rem;
    }

    .register-body {
        padding: 30px 24px;
    }
}