.intro-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100vh;
    position: relative;
    z-index: 10;
    padding: 2rem;
}

.auth-theme-toggle {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 30;
}

.intro-container.modal-open {
    z-index: 1001;
    pointer-events: none;
}

.logo-intro {
    margin-bottom: 0;
    animation: logoZoomIn 1.2s cubic-bezier(0.34, 1.56, 0.64, 1);
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    z-index: 1001;
}

.logo-intro.shrink {
    transform: translateY(-34vh) scale(0.3);
    margin-bottom: 0;
}

.logo-intro.hide {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.logo-text {
    font-family: var(--font-main);
    font-size: 8rem;
    margin: 0;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    pointer-events: none;
    color: var(--text-main);
}

.logo-text .green-r {
    display: inline-flex;
    align-items: baseline;
    color: var(--accent);
    animation: pulseGreen 2s ease-in-out infinite;
    -webkit-animation: pulseGreen 2s ease-in-out infinite;
}

.green-r__suffix {
    display: inline-block;
    max-width: 0;
    overflow: hidden;
    white-space: nowrap;
    opacity: 0;
    transform: translateX(-0.15em);
    transition: max-width 0.35s ease, opacity 0.2s ease, transform 0.35s ease;
}

.logo-intro:hover .green-r__suffix {
    max-width: 5em;
    opacity: 1;
    transform: translateX(0);
}

@keyframes pulseGreen {
    0%,
    100% {
        opacity: 1;
        filter: brightness(1);
    }
    50% {
        opacity: 0.85;
        filter: brightness(1.2);
    }
}

@-webkit-keyframes pulseGreen {
    0%,
    100% {
        opacity: 1;
        -webkit-filter: brightness(1);
    }
    50% {
        opacity: 0.85;
        -webkit-filter: brightness(1.2);
    }
}

@keyframes logoZoomIn {
    0% {
        opacity: 0;
        transform: scale(0.3) translateY(-100px);
    }
    60% {
        transform: scale(1.1);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.tagline {
    margin-bottom: 4rem;
    animation: fadeInUp 1s ease 0.4s both;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.tagline.hide {
    opacity: 0;
    transform: translateY(-20px);
    pointer-events: none;
    visibility: hidden;
}

.tagline p {
    font-family: var(--font-main);
    font-size: 1.575rem;
    margin: 0;
    opacity: 0.7;
    font-weight: 400;
    letter-spacing: 0.02em;
    pointer-events: none;
    color: var(--text-main);
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-toggle-container {
    position: relative;
    display: flex;
    gap: 0;
    background: var(--blur-container-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    padding: 0.125rem;
    animation: fadeInUp 1s ease 0.6s both;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.075);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.auth-toggle-container.hide {
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    visibility: hidden;
}

.toggle-background {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    right: 0.5rem;
    bottom: 0.5rem;
    pointer-events: none;
}

.toggle-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: calc(33.333% - 0.33rem);
    height: 100%;
    background: var(--text-main);
    border-radius: 90px;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transform: translateX(calc(100% + 0.5rem));
}

.toggle-btn {
    position: relative;
    z-index: 1;
    font-family: var(--font-main);
    font-size: 1.05rem;
    padding: 0.65rem 1rem;
    background: transparent;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: color 0.3s ease;
    color: var(--text-secondary);
    font-weight: 400;
    min-width: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toggle-btn.active {
    color: var(--bg-color);
}

.toggle-btn:hover:not(.active) {
    color: var(--text-main);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal.active {
    display: flex;
    padding: 0;
    align-items: stretch;
    justify-content: stretch;
}

.modal-content {
    background: var(--blur-container-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.5rem 1.5rem 1rem 1.5rem;
    max-width: 430px;
    width: 100%;
    position: relative;
    animation: modalSlideUp 0.6s ease-out;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
    max-height: 90vh;
    overflow-y: auto;
}

.modal.active .modal-content {
    width: 100%;
    max-width: none;
    min-height: 100vh;
    max-height: none;
    border: none;
    border-radius: 0;
    box-shadow: none;
    padding: clamp(1.5rem, 4vw, 3rem) clamp(1rem, 4vw, 2rem) 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.modal-panel {
    width: 100%;
    position: relative;
    padding-top: 2.5rem;
}

.modal.active .modal-panel {
    width: min(100%, 32rem);
}

.modal-line {
    position: absolute;
    background: var(--border-color);
    opacity: 0.9;
    pointer-events: none;
}

.modal-line--left,
.modal-line--right {
    width: 1px;
    top: 50%;
    transform: translateY(-50%);
}

.modal-line--left {
    left: -1rem;
    height: clamp(24rem, 150%, 80rem);
}

.modal-line--right {
    right: -1rem;
    height: clamp(21rem, 126%, 54rem);
}

.modal-line--top,
.modal-line--bottom {
    left: 50%;
    height: 1px;
    transform: translateX(-50%);
}

.modal-line--top {
    top: -1rem;
    width: clamp(28rem, 154%, 58rem);
}

.modal-line--bottom {
    bottom: -1rem;
    width: clamp(24rem, 133%, 53rem);
}

@keyframes modalSlideUp {
    0% {
        opacity: 0;
        transform: translateY(50px) scale(0.95);
    }
    50% {
        transform: translateY(-20px) scale(1.02);
    }
    65% {
        transform: translateY(10px) scale(0.98);
    }
    80% {
        transform: translateY(-5px) scale(1.01);
    }
    90% {
        transform: translateY(2px) scale(0.995);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 0;
    right: 0;
    background: transparent;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

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

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

.modal-header h2 {
    font-family: var(--font-main);
    font-size: 1.5rem;
    margin: 0 0 0.125rem 0;
    font-weight: 700;
    color: var(--text-main);
}

.modal-header p {
    font-family: var(--font-main);
    font-size: 0.9rem;
    opacity: 0.5;
    margin: 0;
    color: var(--text-secondary);
}

.auth-panel-view[hidden],
.forgot-password-success[hidden] {
    display: none !important;
}

.form-group {
    margin-bottom: 0.5rem;
}

.form-group label {
    display: block;
    font-family: var(--font-main);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 0;
    margin-left: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input {
    width: 100%;
    font-family: var(--font-main);
    font-size: 1rem;
    padding: 0.25rem 1rem;
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-main);
    transition: all 0.2s ease;
}

.form-group input::placeholder {
    color: var(--text-muted);
    opacity: 0.5;
}

.form-group input:focus {
    outline: none;
    background: rgba(0, 0, 0, 0.03);
    border-color: var(--accent);
}

body.dark-mode .form-group input {
    background: rgba(255, 255, 255, 0.05);
}

body.dark-mode .form-group input:focus {
    background: rgba(255, 255, 255, 0.08);
}

.field-hint,
.password-strength-hint,
.password-strength-row {
    font-size: 0.82rem;
}

.field-hint {
    min-height: 1.15rem;
    margin: 0.25rem 0 0;
    color: var(--text-muted);
}

.field-hint.is-error {
    color: #c43131;
}

.field-hint.is-success {
    color: #1d8f47;
}

.form-aux-row {
    display: flex;
    justify-content: flex-end;
    margin-top: 0.4rem;
}

.text-action-button {
    appearance: none;
    border: none;
    background: transparent;
    padding: 0;
    font: inherit;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--accent);
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 0.16em;
}

.text-action-button:hover {
    opacity: 0.85;
}

.password-strength {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    margin-top: 0.5rem;
    padding: 0.75rem 0.85rem;
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    background: var(--blur-container-bg-two);
}

.password-strength-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    color: var(--text-secondary);
}

.password-strength-label {
    color: var(--text-main);
    font-weight: 700;
}

.password-strength-bar {
    height: 0.42rem;
    border-radius: 999px;
    overflow: hidden;
    background: var(--border-color);
}

.password-strength-fill {
    display: block;
    height: 100%;
    width: 0;
    border-radius: inherit;
    background: var(--text-muted);
    transition: width 0.2s ease, background 0.2s ease;
}

.password-strength-hint {
    margin: 0;
    color: var(--text-muted);
    line-height: 1.45;
}

.password-strength[data-strength="weak"] .password-strength-fill {
    background: linear-gradient(90deg, #ff5d5d 0%, #f97316 100%);
}

.password-strength[data-strength="fair"] .password-strength-fill {
    background: linear-gradient(90deg, #f59e0b 0%, #facc15 100%);
}

.password-strength[data-strength="good"] .password-strength-fill {
    background: linear-gradient(90deg, #6ccf57 0%, #a7e56b 100%);
}

.password-strength[data-strength="strong"] .password-strength-fill {
    background: linear-gradient(90deg, #16a34a 0%, #4ade80 100%);
}

#clerk-captcha:not(:empty) {
    display: grid;
    justify-items: center;
}

#clerk-captcha > div {
    width: 100%;
}

.error-message {
    display: none;
    background: rgba(255, 68, 68, 0.1);
    border: 1px solid rgba(255, 68, 68, 0.3);
    border-radius: 0.25rem;
    padding: 0.25rem 1rem;
    margin-bottom: 1rem;
    color: #ff4444;
    font-size: 0.9rem;
}

.error-message.active {
    display: block;
}

.auth-status-message {
    display: none;
    margin-bottom: 1rem;
    padding: 0.7rem 0.9rem;
    border-radius: 0.5rem;
    border: 1px solid transparent;
    font-size: 0.88rem;
    line-height: 1.45;
}

.auth-status-message.active {
    display: block;
}

.auth-status-message[data-tone="info"] {
    background: rgba(0, 0, 0, 0.03);
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.auth-status-message[data-tone="success"] {
    background: rgba(29, 143, 71, 0.1);
    border-color: rgba(29, 143, 71, 0.28);
    color: #1d8f47;
}

.auth-status-message[data-tone="error"] {
    background: rgba(255, 68, 68, 0.1);
    border-color: rgba(255, 68, 68, 0.3);
    color: #ff4444;
}

.submit-button {
    background: var(--accent);
    color: white;
    width: 100%;
    font-family: var(--font-main);
    font-size: 1rem;
    font-weight: 700;
    padding: 0.5rem;
    border: 1px solid var(--accent);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 1rem;
}

.submit-button:hover {
    opacity: 0.9;
    transform: scale(1.05);
}

.submit-button:active {
    transform: translateY(0);
}

.submit-button:disabled {
    pointer-events: none;
    opacity: 0.6;
}

.modal-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.modal-footer p {
    font-family: var(--font-main);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0;
    cursor: default;
}

.verification-group {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    animation: slideDown 0.3s ease-out;
}

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

.verification-hint {
    font-family: var(--font-main);
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin: 0.5rem 0 0 1.25rem;
    opacity: 0.7;
}

.verification-actions {
    width: 100%;
    margin-top: 0.75rem;
}

.verification-resend-button {
    width: 100%;
    justify-content: center;
    padding: 0.25rem 0.5rem;
    border-radius: 0.5rem;
}

.verification-group input {
    text-align: center;
    font-size: 1rem;
    letter-spacing: 0.15rem;
    font-weight: 600;
}

.auth-secondary-button {
    width: 100%;
    justify-content: center;
    margin-top: 0.75rem;
}

.forgot-password-success {
    text-align: center;
    padding-top: 0.5rem;
}

.forgot-password-success h3 {
    margin: 0 0 0.5rem;
    font-size: 1.3rem;
    color: var(--text-main);
}

.forgot-password-success p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.5;
}

@media (max-width: 768px) {
    .auth-theme-toggle {
        top: 1rem;
        right: 1rem;
        width: 34px;
        height: 34px;
        border-radius: 0.45rem;
    }

    .green-r__suffix {
        display: none !important;
    }

    .logo-text {
        font-size: 4rem;
    }

    .tagline p {
        font-size: 1.05rem;
    }

    .toggle-btn {
        font-size: 1rem;
        min-width: 100px;
        padding: 0.5rem 0.75rem;
    }

    .modal-content {
        padding: 2rem 1.5rem 1rem 1.5rem;
    }

    .modal.active .modal-content {
        padding: 1.25rem 1rem 1.5rem;
    }

    .modal-line {
        display: none;
    }
}