.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    padding-top: 100px; /* Account for fixed navbar */
}

.auth-container {
    width: 100%;
    max-width: 450px;
    position: relative;
    z-index: 2;
}

.auth-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.03) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
    pointer-events: none;
}

/* Auth Logo */
.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo svg {
    width: 60px;
    height: 60px;
    filter: drop-shadow(0 4px 20px rgba(99, 102, 241, 0.2));
    animation: logoFloat 3s ease-in-out infinite;
}

/* Tab Switcher */
.tab-switcher {
    display: flex;
    background: var(--bg-tertiary);
    border-radius: 12px;
    padding: 4px;
    margin-bottom: 2rem;
    position: relative;
}

.tab-btn {
    flex: 1;
    padding: 0.75rem;
    background: transparent;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--text-tertiary);
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    z-index: 2;
}

.tab-btn.active {
    color: var(--text-primary);
}

.tab-indicator {
    position: absolute;
    top: 4px;
    left: 4px;
    width: calc(50% - 4px);
    height: calc(100% - 8px);
    background: var(--bg-primary);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-indicator.signup {
    transform: translateX(calc(100% + 4px));
}

/* Auth Forms */
.auth-form {
    display: none;
}

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

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

.form-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.75rem;
    font-weight: 300;
    text-align: center;
    margin-bottom: 0.5rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.form-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

/* Form Elements (extending base styles from index.css) */
.password-wrapper {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
    color: var(--text-tertiary);
    transition: var(--transition-smooth);
}

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

.password-toggle svg {
    width: 20px;
    height: 20px;
}

.eye-off-icon {
    display: none;
}

.password-toggle.active .eye-icon {
    display: none;
}

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

/* Password Strength Indicator */
.password-strength {
    margin-top: 0.5rem;
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    overflow: hidden;
    display: none;
}

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

.password-strength::after {
    content: '';
    display: block;
    height: 100%;
    border-radius: 2px;
    transition: width 0.3s, background 0.3s;
}

.password-strength.weak::after {
    width: 33%;
    background: #ef4444;
}

.password-strength.medium::after {
    width: 66%;
    background: #f59e0b;
}

.password-strength.strong::after {
    width: 100%;
    background: #10b981;
}

/* Form Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-input {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    cursor: pointer;
}

.checkbox-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    user-select: none;
}

.checkbox-label a {
    color: var(--accent);
    text-decoration: none;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

.form-link {
    color: var(--accent);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

.form-link:hover {
    text-decoration: underline;
}

/* Auth Form Buttons */
.auth-form .btn {
    width: 100%;
    margin-top: 1rem;
}

/* Modal Overlay (Forgot Password) */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    transform: scale(0.9);
    transition: transform 0.3s;
    position: relative;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: var(--transition-smooth);
    color: var(--text-tertiary);
}

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

.modal-close svg {
    width: 20px;
    height: 20px;
}

.modal-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 0.5rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.modal-content .btn {
    margin-top: 1rem;
    width: 100%;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2000;
    pointer-events: none;
}

.toast {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 350px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    opacity: 0;
    transform: translateY(-20px);
    animation: slideIn 0.3s forwards;
    pointer-events: all;
}

.toast.success {
    border-left: 4px solid #10b981;
}

.toast.error {
    border-left: 4px solid #ef4444;
}

.toast.info {
    border-left: 4px solid #3b82f6;
}

@keyframes slideIn {
    to {
        opacity: 1;
        transform: translateY(0);
        @media (max-width: 768px) {
            .toast-container {
                position: fixed;
                top: 1rem;
                left: 1rem;
                right: 1rem;
                transform: none;
                display: flex;
                flex-direction: column;
                align-items: stretch;
            }

            .toast {
                min-width: auto;
                width: 100%;
            }
        }
    }
}

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

.toast.hiding {
    animation: slideOut 0.3s forwards;
}

.toast-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.toast-icon.success {
    stroke: #10b981;
}

.toast-icon.error {
    stroke: #ef4444;
}

.toast-icon.info {
    stroke: #3b82f6;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 500;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
    font-size: 1rem;
    letter-spacing: 0.01em;
}

.toast-message {
    font-weight: 300;
    color: var(--text-secondary);
    font-size: 0.9rem;
    letter-spacing: 0.01em;
    line-height: 1.4;
}

/* Responsive Design */
@media (max-width: 768px) {
    .auth-page {
        padding: 1rem;
        padding-top: 80px;
    }

    .auth-card {
        padding: 2rem;
        border-radius: 20px;
    }

    .auth-logo svg {
        width: 50px;
        height: 50px;
    }

    .form-title {
        font-size: 1.5rem;
    }

    .form-options {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .auth-card {
        padding: 1.5rem;
        border-radius: 16px;
    }

    .tab-switcher {
        padding: 3px;
    }

    .tab-btn {
        padding: 0.625rem;
        font-size: 0.875rem;
    }

    .form-title {
        font-size: 1.35rem;
    }

    .form-subtitle {
        font-size: 0.875rem;
    }

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