/* Authentication Pages - Cyber Glass Design */

/* CSS Variables */
:root {
    --glass-bg: rgba(10, 5, 25, 0.85);
    --glass-border: rgba(0, 255, 255, 0.2);
    --neon-cyan: #00f0ff;
    --neon-magenta: #ff0080;
    --neon-yellow: #fcee0a;
    --neon-green: #39ff14;
    --neon-red: #ff2a6d;
    --text-primary: #e8f0ff;
    --text-secondary: #a0b0d0;
    --text-muted: #607090;
    --gradient-cyber: linear-gradient(135deg, #00f0ff 0%, #ff0080 100%);
    --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.5);
}

[data-theme="light"] {
    --glass-bg: rgba(255, 255, 255, 0.92);
    --glass-border: rgba(0, 100, 120, 0.2);
    --neon-cyan: #0088a0;
    --neon-magenta: #a00050;
    --neon-green: #008838;
    --neon-red: #a01840;
    --text-primary: #1a1a2e;
    --text-secondary: #3a3a5a;
    --text-muted: #5a5a7a;
}

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

body {
    font-family: 'Work Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    background: linear-gradient(135deg, #050510 0%, #0a0a20 50%, #0f0520 100%);
    color: var(--text-primary);
    position: relative;
}

/* Animated background orbs */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 60% at 10% 20%, rgba(0, 240, 255, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse 60% 50% at 90% 80%, rgba(255, 0, 128, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse 50% 40% at 50% 50%, rgba(176, 38, 255, 0.06) 0%, transparent 50%);
    pointer-events: none;
    z-index: -2;
    animation: orbFloat 20s ease-in-out infinite;
}

/* Scan line effect */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 240, 255, 0.015) 2px,
        rgba(0, 240, 255, 0.015) 4px
    );
    pointer-events: none;
    z-index: -1;
    animation: scanLineSmooth 8s linear infinite;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(2%, 3%) scale(1.02); }
    50% { transform: translate(-1%, 2%) scale(0.98); }
    75% { transform: translate(1%, -2%) scale(1.01); }
}

@keyframes scanLineSmooth {
    0% { background-position: 0 0; }
    100% { background-position: 0 100vh; }
}

[data-theme="light"] body {
    background: linear-gradient(135deg, #f8faff 0%, #eef4ff 50%, #f5f0ff 100%);
}

[data-theme="light"] body::before {
    background: 
        radial-gradient(ellipse 80% 60% at 10% 20%, rgba(0, 130, 150, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse 60% 50% at 90% 80%, rgba(150, 0, 80, 0.08) 0%, transparent 50%);
}

[data-theme="light"] body::after {
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 130, 150, 0.01) 2px,
        rgba(0, 130, 150, 0.01) 4px
    );
}

/* Container */
.container {
    width: 100%;
    max-width: 400px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--shadow-glass);
    padding: 28px;
    padding-top: 60px; /* Extra space for theme toggle */
    position: relative;
    overflow: hidden;
}

/* Theme Toggle Button */
.theme-toggle {
    position: absolute !important;
    top: 12px !important;
    right: 12px !important;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    background: rgba(0, 240, 255, 0.05);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.3s ease;
    z-index: 100;
}

.theme-toggle:hover {
    background: rgba(0, 240, 255, 0.15);
    border-color: rgba(0, 240, 255, 0.4);
    transform: scale(1.05);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
}

.theme-toggle:active {
    transform: scale(0.95);
}

[data-theme="light"] .theme-toggle {
    background: rgba(0, 100, 120, 0.05);
    border-color: rgba(0, 100, 120, 0.2);
}

[data-theme="light"] .theme-toggle:hover {
    background: rgba(0, 100, 120, 0.1);
    border-color: rgba(0, 100, 120, 0.3);
    box-shadow: 0 0 15px rgba(0, 100, 120, 0.15);
}

.container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-cyber);
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 24px;
    position: relative;
    padding-right: 40px; /* Space for theme toggle */
    padding-left: 40px; /* Balance */
}

.header .logo {
    font-size: 48px;
    margin-bottom: 12px;
    filter: drop-shadow(0 0 20px rgba(0, 240, 255, 0.5));
}

.header h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 22px;
    font-weight: 600;
    color: var(--neon-cyan);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
    margin-bottom: 6px;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

[data-theme="light"] .header h1 {
    text-shadow: none;
}

.header p {
    color: var(--text-secondary);
    font-size: 13px;
    letter-spacing: 0.03em;
}

/* Form Groups */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-family: 'Work Sans', sans-serif;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
    color: var(--text-secondary);
}

/* Inputs */
input, select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    font-family: 'Work Sans', sans-serif;
    font-size: 14px;
    background: rgba(0, 240, 255, 0.03);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

/* Improve native select dropdown theming in dark mode (best effort).
   Browsers render <option> menus natively; color-scheme helps avoid white dropdowns. */
[data-theme="dark"] select {
    color-scheme: dark;
}

/* Scope option styling to the Security Questions modal to avoid impacting other selects.
   Note: some browsers ignore option styling; color-scheme above still helps. */
[data-theme="dark"] #questionsModal select,
[data-theme="dark"] #questionsModal option {
    background-color: #0b1220;
    color: #e8f0ff;
}

[data-theme="light"] #questionsModal select,
[data-theme="light"] #questionsModal option {
    background-color: #ffffff;
    color: #1a1a2e;
}

input:focus, select:focus {
    outline: none;
    border-color: rgba(0, 240, 255, 0.5);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.15);
}

input::placeholder {
    color: var(--text-muted);
}

/* Password wrapper */
.password-wrapper {
    position: relative;
}

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

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    opacity: 0.6;
    padding: 4px;
    transition: opacity 0.2s;
}

.password-toggle:hover {
    opacity: 1;
}

/* Buttons */
.btn {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    font-family: 'Work Sans', sans-serif;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 8px;
}

.btn-primary, .btn {
    background: rgba(0, 240, 255, 0.1);
    border-color: rgba(0, 240, 255, 0.4);
    color: var(--neon-cyan);
}

.btn-primary:hover:not(:disabled), .btn:hover:not(:disabled) {
    background: rgba(0, 240, 255, 0.2);
    box-shadow: 0 0 25px rgba(0, 240, 255, 0.3);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(160, 176, 208, 0.1);
    border-color: rgba(160, 176, 208, 0.3);
    color: var(--text-secondary);
}

.btn-secondary:hover:not(:disabled) {
    background: rgba(160, 176, 208, 0.2);
}

/* Danger button (used by Security Questions modal Cancel). */
.btn.danger {
    background: rgba(255, 42, 109, 0.08);
    border-color: rgba(255, 42, 109, 0.3);
    color: var(--neon-red);
}

.btn.danger:hover:not(:disabled) {
    background: rgba(255, 42, 109, 0.15);
    border-color: rgba(255, 42, 109, 0.5);
    box-shadow: 0 0 20px rgba(255, 42, 109, 0.2);
    transform: translateY(-2px);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-row {
    display: flex;
    gap: 10px;
    margin-top: 8px;
}

.btn-row .btn {
    margin-top: 0;
}

/* Disabled Registration Message */
.disabled-message {
    text-align: center;
    padding: 14px 18px;
    margin-bottom: 24px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.02em;
    background: rgba(255, 100, 100, 0.08);
    border: 1px solid rgba(255, 100, 100, 0.25);
    color: #ff8a8a;
}

[data-theme="light"] .disabled-message {
    background: rgba(200, 50, 50, 0.08);
    border-color: rgba(200, 50, 50, 0.2);
    color: #c03030;
}

/* Messages */
.message {
    padding: 10px 14px;
    border-radius: 8px;
    margin-bottom: 14px;
    font-size: 13px;
    display: none;
}

.message.show {
    display: block;
}

.message.error {
    background: rgba(255, 42, 109, 0.1);
    border: 1px solid rgba(255, 42, 109, 0.3);
    color: var(--neon-red);
}

.message.success {
    background: rgba(57, 255, 20, 0.1);
    border: 1px solid rgba(57, 255, 20, 0.3);
    color: var(--neon-green);
}

.message.info {
    background: rgba(0, 240, 255, 0.08);
    border: 1px solid rgba(0, 240, 255, 0.2);
    color: var(--neon-cyan);
}

.message.warning {
    background: rgba(252, 238, 10, 0.1);
    border: 1px solid rgba(252, 238, 10, 0.3);
    color: var(--neon-yellow);
}

/* Footer / Links */
.footer, .back-link {
    text-align: center;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--glass-border);
    font-size: 13px;
    color: var(--text-secondary);
}

.footer a, .back-link a {
    color: var(--neon-cyan);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
}

.footer a:hover, .back-link a:hover {
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

.footer p {
    margin: 6px 0;
}

.back-link {
    border-top: none;
    padding-top: 0;
    margin-top: 16px;
}

/* Password Strength Indicator */
.pwd-strength {
    margin-top: 10px;
    display: none;
}

.pwd-strength.show {
    display: block;
}

.pwd-bar {
    display: flex;
    gap: 4px;
    margin-bottom: 8px;
}

.pwd-bar span {
    flex: 1;
    height: 3px;
    border-radius: 2px;
    background: rgba(96, 112, 144, 0.3);
    transition: background 0.3s;
}

.pwd-bar.weak span:nth-child(1) { background: var(--neon-red); }
.pwd-bar.fair span:nth-child(-n+2) { background: var(--neon-yellow); }
.pwd-bar.good span:nth-child(-n+3) { background: var(--neon-green); }
.pwd-bar.strong span { background: var(--neon-green); }

.pwd-rules {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px 12px;
}

.pwd-rule {
    font-size: 11px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 5px;
}

.pwd-rule.valid {
    color: var(--neon-green);
}

.pwd-rule .icon {
    font-size: 10px;
    width: 12px;
}

/* Password Match */
.pwd-match {
    font-size: 11px;
    margin-top: 6px;
    display: none;
}

.pwd-match.show {
    display: flex;
    align-items: center;
    gap: 5px;
}

.pwd-match.valid {
    color: var(--neon-green);
}

.pwd-match.invalid {
    color: var(--neon-red);
}

/* Progress Steps */
.progress {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.progress-step {
    flex: 1;
    height: 3px;
    border-radius: 2px;
    background: rgba(96, 112, 144, 0.3);
    transition: all 0.3s;
}

.progress-step.active {
    background: var(--neon-cyan);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
}

.progress-step.done {
    background: var(--neon-green);
}

/* Step containers */
.step {
    display: none;
}

.step.active {
    display: block;
}

/* Hint text */
.hint {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* SSO section (Login) */
.auth-sso-footer {
    margin-top: 14px;
}

.auth-sso-label {
    margin: 0 0 10px;
    opacity: 0.8;
}

.modal {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}

.modal::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-cyber);
}

.modal__header,
.modal__footer {
    border-color: var(--glass-border);
}

.modal__title {
    font-family: 'Orbitron', sans-serif;
    color: var(--neon-cyan);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-shadow: 0 0 20px rgba(0, 240, 255, 0.25);
}

[data-theme="light"] .modal__title {
    text-shadow: none;
}

.modal__close {
    border: 1px solid var(--glass-border);
    background: rgba(0, 240, 255, 0.05);
    color: var(--neon-cyan);
}

.modal__close:hover {
    background: rgba(0, 240, 255, 0.15);
    border-color: rgba(0, 240, 255, 0.4);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
}

/* Name row (register) */
.name-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.name-row .form-group {
    margin-bottom: 16px;
}

/* ALTCHA Widget */
.altcha-actions {
    margin: 14px 0;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: nowrap;
}

.altcha-actions .altcha-container {
    margin: 0;
    justify-content: flex-start;
    flex: 1 1 auto;
    min-width: 0;
}

.altcha-actions .btn {
    width: auto;
    margin-top: 0;
    margin-left: auto;
    flex: 0 0 auto;
    min-width: 200px;
    padding: 12px 18px;
    font-size: 14px;
    letter-spacing: 0.08em;
    white-space: nowrap;
}

.altcha-actions altcha-widget {
    --altcha-max-width: 240px;
}

/* Login/Register: stack checkbox above label to save horizontal space */
#loginForm .altcha-actions altcha-widget .altcha-main,
#registerForm .altcha-actions altcha-widget .altcha-main {
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.55rem 0.65rem;
}

#loginForm .altcha-actions altcha-widget .altcha-checkbox,
#registerForm .altcha-actions altcha-widget .altcha-checkbox {
    justify-content: center;
}

#loginForm .altcha-actions altcha-widget .altcha-label,
#registerForm .altcha-actions altcha-widget .altcha-label {
    line-height: 1.1;
    white-space: nowrap;
    text-align: center;
    flex-grow: 0;
    width: auto;
}

.altcha-container {
    margin: 14px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.altcha-custom-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-cyber);
    border-radius: 999px;
    color: #fff;
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 0 14px rgba(0, 240, 255, 0.22);
}

.altcha-custom-icon svg {
    width: 32px;
    height: 32px;
    display: block;
    transform: scale(1.08);
    transform-origin: center;
}

altcha-widget {
    --altcha-color-border: transparent;
    --altcha-color-border-focus: transparent;
    --altcha-color-text: var(--text-primary);
    --altcha-color-text-dark: var(--text-secondary);
    --altcha-color-base: transparent;
    --altcha-border-width: 0;
    font-size: 14px;
}

@media (max-width: 640px) {
    /* Keep the same single-row layout on mobile, but tighten spacing */
    .altcha-actions {
        gap: 12px;
    }

    /* Mobile: let the button use the remaining space */
    .altcha-actions .altcha-container {
        flex: 0 0 auto;
    }

    .altcha-actions .btn {
        width: 100%;
        margin-left: 0;
        flex: 1 1 0;
    }

    .altcha-actions .btn {
        min-width: 180px;
        padding: 10px 14px;
        font-size: 13px;
        letter-spacing: 0.07em;
    }

    .altcha-actions altcha-widget {
        --altcha-max-width: 210px;
    }
}

@media (max-width: 420px) {
    /* On extra-small screens, stack to avoid overflow */
    .altcha-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .altcha-actions .altcha-container {
        justify-content: center;
    }

    .altcha-actions .btn {
        width: 100%;
        min-width: 0;
    }
}

/* Responsive */
@media (max-width: 480px) {
    .container {
        padding: 20px;
    }
    
    .pwd-rules {
        grid-template-columns: 1fr;
    }
    
    .name-row {
        grid-template-columns: 1fr;
    }
}