/* ============================================
   Auth Pages Shared Styles
   Used by: login.html, signup.html, forgot-password.html, reset-password.html
   ============================================ */

/* Page-level accent colors */
.auth-page-login {
    --auth-accent: var(--primary);
    --auth-accent-shadow: rgba(194, 123, 66, 0.25);
    --auth-accent-shadow-hover: rgba(194, 123, 66, 0.35);
}

.auth-page-signup,
.auth-page-reset {
    --auth-accent: linear-gradient(135deg, #3D8B5F 0%, #2D6A4F 100%);
    --auth-accent-shadow: rgba(61, 139, 95, 0.25);
    --auth-accent-shadow-hover: rgba(61, 139, 95, 0.35);
}

.auth-page-forgot {
    --auth-accent: linear-gradient(135deg, #3A7CA5 0%, #2B5F7C 100%);
    --auth-accent-shadow: rgba(58, 124, 165, 0.25);
    --auth-accent-shadow-hover: rgba(58, 124, 165, 0.35);
}

/* Body layout for centered auth pages */
body.auth-page-login,
body.auth-page-signup,
body.auth-page-forgot,
body.auth-page-reset {
    align-items: center;
    min-height: 100vh;
}

/* ============================================
   Container
   ============================================ */
.auth-container {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 44px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--card-shadow);
    border: 1.5px solid var(--border-color);
    animation: revealUp 0.7s cubic-bezier(0.4, 0, 0.2, 1);
    transition: background var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
    z-index: var(--z-content);
}

.auth-container:hover {
    box-shadow: var(--card-shadow-hover);
}

/* ============================================
   Header
   ============================================ */
.auth-header {
    text-align: center;
    margin-bottom: 36px;
}

.auth-icon {
    width: 72px;
    height: 72px;
    background: var(--auth-accent);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    box-shadow: 0 8px 24px var(--auth-accent-shadow);
    animation: iconFloat 4s ease-in-out infinite;
}

.auth-icon i {
    font-size: 1.7rem;
    color: white;
}

.auth-header h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--auth-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    letter-spacing: 0.01em;
}

/* ============================================
   Info Box (forgot-password)
   ============================================ */
.auth-info-box {
    background: rgba(58, 124, 165, 0.06);
    border: 1px solid rgba(58, 124, 165, 0.12);
    border-radius: var(--border-radius-base);
    padding: 14px 16px;
    margin-bottom: 24px;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.84rem;
    color: var(--info);
    display: flex;
    align-items: flex-start;
    gap: 10px;
    line-height: 1.6;
}

.auth-info-box i {
    margin-top: 3px;
    flex-shrink: 0;
}

/* ============================================
   Form
   ============================================ */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.auth-form.compact {
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-family: 'DM Sans', sans-serif;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.form-input {
    width: 100%;
    padding: 13px 16px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--border-radius-base);
    font-size: 0.95rem;
    font-family: 'DM Sans', sans-serif;
    color: var(--text-primary);
    background: transparent;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

.form-input:focus {
    border-color: var(--primary-light);
    box-shadow: var(--focus-ring);
}

.form-input::placeholder {
    color: var(--text-light);
}

/* ============================================
   Password Strength (signup, reset-password)
   ============================================ */
.password-strength {
    height: 3px;
    border-radius: 2px;
    background: var(--border-color);
    margin-top: 8px;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    border-radius: 2px;
    width: 0%;
    transition: width var(--transition-normal), background var(--transition-normal);
}

.password-strength-bar.weak {
    width: 33%;
    background: var(--error);
}

.password-strength-bar.medium {
    width: 66%;
    background: var(--warning);
}

.password-strength-bar.strong {
    width: 100%;
    background: var(--success);
}

/* ============================================
   Password Requirements (signup)
   ============================================ */
.password-requirements {
    list-style: none;
    padding: 0;
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.password-requirements li {
    font-family: 'DM Sans', sans-serif;
    font-size: 0.76rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition-fast);
}

.password-requirements li i {
    font-size: 0.65rem;
    width: 14px;
    text-align: center;
}

.password-requirements li.valid {
    color: var(--success);
}

.password-requirements li.valid i {
    color: var(--success);
}

/* ============================================
   Submit Button
   ============================================ */
.btn-auth {
    background: var(--auth-accent);
    color: white;
    border: none;
    border-radius: var(--border-radius-base);
    padding: 15px;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 4px 16px var(--auth-accent-shadow);
    letter-spacing: 0.01em;
}

.btn-auth:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--auth-accent-shadow-hover);
}

.btn-auth:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ============================================
   Alert
   ============================================ */
.auth-alert {
    padding: 12px 16px;
    border-radius: var(--border-radius-base);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    display: none;
    align-items: center;
    gap: 8px;
    animation: scaleIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.auth-alert.error {
    display: flex;
    background: rgba(196, 69, 54, 0.08);
    color: var(--error);
    border: 1px solid rgba(196, 69, 54, 0.15);
}

.auth-alert.success {
    display: flex;
    background: rgba(61, 139, 95, 0.08);
    color: var(--success);
    border: 1px solid rgba(61, 139, 95, 0.15);
}

.auth-alert.info {
    display: flex;
    background: rgba(58, 124, 165, 0.08);
    color: var(--info);
    border: 1px solid rgba(58, 124, 165, 0.15);
}

/* ============================================
   Footer
   ============================================ */
.auth-footer {
    text-align: center;
    margin-top: 28px;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.auth-footer a {
    color: var(--primary-light);
    text-decoration: none;
    font-weight: 600;
    transition: opacity var(--transition-fast);
}

.auth-footer a:hover {
    opacity: 0.75;
}

.auth-footer .separator {
    margin: 14px 0;
    color: var(--text-light);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
}

/* ============================================
   Dark Mode Overrides
   ============================================ */
body.dark-mode .auth-container {
    background: rgba(28, 31, 39, 0.82);
    border-color: rgba(255, 255, 255, 0.07);
}

body.dark-mode .form-input {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

body.dark-mode .form-input::placeholder {
    color: var(--text-light);
}

body.dark-mode .form-input:focus {
    border-color: var(--primary-light);
    background: rgba(255, 255, 255, 0.08);
}

body.dark-mode .auth-info-box {
    background: rgba(58, 124, 165, 0.08);
    border-color: rgba(58, 124, 165, 0.15);
}

body.dark-mode .auth-alert.error {
    background: rgba(196, 69, 54, 0.12);
    border-color: rgba(196, 69, 54, 0.2);
}

body.dark-mode .auth-alert.success {
    background: rgba(61, 139, 95, 0.12);
    border-color: rgba(61, 139, 95, 0.2);
}

body.dark-mode .auth-alert.info {
    background: rgba(58, 124, 165, 0.12);
    border-color: rgba(58, 124, 165, 0.2);
}

body.dark-mode .password-strength {
    background: rgba(255, 255, 255, 0.08);
}

body.dark-mode .password-requirements li {
    color: var(--text-light);
}

/* ============================================
   Focus Visible (Auth)
   ============================================ */
.form-input:focus-visible {
    border-color: var(--primary-light);
    box-shadow: var(--focus-ring);
    outline: none;
}

.btn-auth:focus-visible {
    outline: 2px solid var(--primary-light);
    outline-offset: 2px;
}

.auth-footer a:focus-visible {
    outline: 2px solid var(--primary-light);
    outline-offset: 2px;
    border-radius: var(--border-radius-xs);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 600px) {
    .auth-container {
        padding: 28px;
        border-radius: var(--border-radius);
    }

    .auth-icon {
        width: 56px;
        height: 56px;
        border-radius: 16px;
    }

    .auth-icon i {
        font-size: 1.3rem;
    }

    .btn-auth:hover {
        transform: none;
    }

    .auth-container {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }
}