/**
 * Login / register / reset — POLC brand auth shell
 * Visual language from https://polcglobal.com/
 */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root,
[data-theme="light"] {
    --polc-blue: #5ABEE1;
    --polc-blue-deep: #2E86AB;
    --polc-orange: #F05F34;
    --polc-orange-deep: #C43E1D;
    --gradient-flow: linear-gradient(100deg, #5ABEE1 0%, #5ABEE1 30%, #F05F34 78%, #F05F34 100%);
    --auth-surface-bg: #F7F8F9;
    --auth-gradient-hero:
        radial-gradient(ellipse 620px 460px at 82% 12%, rgba(90, 190, 225, 0.22), transparent 60%),
        radial-gradient(ellipse 560px 420px at 8% 88%, rgba(240, 95, 52, 0.14), transparent 60%),
        linear-gradient(165deg, #F7F8F9 0%, #EDEFF1 50%, #F7F8F9 100%);
    --auth-grid-line: rgba(16, 20, 26, 0.05);
    --auth-grid-mask: radial-gradient(ellipse at center, black 22%, transparent 72%);
    --auth-card-bg: #FFFFFF;
    --auth-card-text: #10141A;
    --auth-card-muted: #565E6B;
    --auth-card-border: rgba(16, 20, 26, 0.08);
    --auth-card-shadow: 0 20px 50px rgba(11, 13, 16, 0.08), 0 0 0 1px rgba(16, 20, 26, 0.04);
    --auth-input-bg: #F7F8F9;
    --auth-input-border: #E4E7EB;
    --auth-input-text: #10141A;
    --auth-toggle-border: rgba(16, 20, 26, 0.1);
    --auth-toggle-bg: rgba(255, 255, 255, 0.92);
    --auth-toggle-text: #4A5160;
    --font-display: "Space Grotesk", "Segoe UI", sans-serif;
    --font-body: "Inter", "Segoe UI", sans-serif;
    --font-mono: "IBM Plex Mono", "Courier New", monospace;
}

[data-theme="dark"] {
    --auth-surface-bg: #06070A;
    --auth-gradient-hero:
        radial-gradient(ellipse 620px 460px at 82% 18%, rgba(90, 190, 225, 0.18), transparent 60%),
        radial-gradient(ellipse 560px 420px at 12% 82%, rgba(240, 95, 52, 0.16), transparent 60%),
        #0B0D10;
    --auth-grid-line: rgba(255, 255, 255, 0.035);
    --auth-grid-mask: radial-gradient(ellipse at center, black 30%, transparent 80%);
    --auth-card-bg: #14171D;
    --auth-card-text: #F7F8F9;
    --auth-card-muted: #9AA2AE;
    --auth-card-border: rgba(255, 255, 255, 0.08);
    --auth-card-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
    --auth-input-bg: #1C2027;
    --auth-input-border: #2A2F38;
    --auth-input-text: #F7F8F9;
    --auth-toggle-border: rgba(255, 255, 255, 0.12);
    --auth-toggle-bg: rgba(20, 23, 29, 0.88);
    --auth-toggle-text: #9AA2AE;
}

body.auth-page {
    position: relative;
    background-color: var(--auth-surface-bg);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-body);
    margin: 0;
    padding: 24px 16px;
    overflow: hidden;
}

body.auth-page.auth-page--scrollable {
    overflow-x: hidden;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    padding: 40px 16px 48px;
}

body.auth-page.auth-page--scrollable > .register-card,
body.auth-page.auth-page--scrollable > .login-card,
body.auth-page.auth-page--scrollable > .auth-card {
    margin-top: auto;
    margin-bottom: auto;
    flex-shrink: 0;
}

body.auth-page::before {
    content: "";
    position: fixed;
    inset: 0;
    background: var(--auth-gradient-hero);
    pointer-events: none;
    z-index: 0;
}

body.auth-page::after {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(var(--auth-grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--auth-grid-line) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: var(--auth-grid-mask);
    pointer-events: none;
    z-index: 0;
}

.auth-card,
.login-card,
.register-card {
    background-color: var(--auth-card-bg);
    border: 1px solid var(--auth-card-border);
    border-radius: 20px;
    box-shadow: var(--auth-card-shadow);
    width: 100%;
    max-width: 420px;
    padding: 40px;
    position: relative;
    z-index: 1;
    color: var(--auth-card-text);
}

.register-card {
    max-width: 650px;
}

.auth-card h1,
.auth-card h2,
.auth-card h3,
.auth-card h4,
.auth-card h5,
.auth-card h6,
.login-card h1,
.login-card h2,
.login-card h3,
.login-card h4,
.login-card h5,
.login-card h6,
.register-card h1,
.register-card h2,
.register-card h3,
.register-card h4,
.register-card h5,
.register-card h6,
.logo-container h6 {
    font-family: var(--font-display);
    letter-spacing: -0.02em;
}

.logo-container h6 {
    background: var(--gradient-flow);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent !important;
    font-weight: 600 !important;
    letter-spacing: 0.04em !important;
}

.auth-card .form-control,
.auth-card .form-select,
.login-card .form-control,
.login-card .form-select,
.register-card .form-control,
.register-card .form-select {
    background-color: var(--auth-input-bg);
    border: 1px solid var(--auth-input-border);
    color: var(--auth-input-text);
    padding: 12px 16px;
    border-radius: 10px;
}

.auth-card .form-control:focus,
.auth-card .form-select:focus,
.login-card .form-control:focus,
.login-card .form-select:focus,
.register-card .form-control:focus,
.register-card .form-select:focus {
    background-color: var(--auth-input-bg);
    border-color: var(--polc-blue);
    box-shadow: 0 0 0 0.25rem rgba(90, 190, 225, 0.22);
    color: var(--auth-input-text);
}

.auth-card .form-label,
.login-card .form-label,
.register-card .form-label {
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    color: var(--auth-card-muted);
}

.auth-card .text-secondary,
.login-card .text-secondary,
.register-card .text-secondary,
.auth-card .text-muted,
.login-card .text-muted,
.register-card .text-muted {
    color: var(--auth-card-muted) !important;
}

.auth-card .section-title,
.register-card .section-title {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--auth-card-text);
    letter-spacing: -0.01em;
    border-bottom: 2px solid transparent;
    border-image: var(--gradient-flow) 1;
    padding-bottom: 8px;
    margin-bottom: 20px;
    margin-top: 10px;
}

.register-card .bg-light {
    background-color: var(--auth-input-bg) !important;
    border-color: var(--auth-input-border) !important;
    color: var(--auth-card-text);
}

.btn-brand {
    background: var(--gradient-flow);
    color: #06070A;
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: 0.02em;
    padding: 14px;
    border: none;
    border-radius: 999px;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
    box-shadow: 0 8px 30px -8px rgba(240, 95, 52, 0.45);
}

.btn-brand:hover {
    color: #06070A;
    transform: translateY(-2px);
    box-shadow: 0 12px 34px -6px rgba(90, 190, 225, 0.5);
    filter: brightness(1.03);
}

.auth-theme-toggle {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 1000;
    border: 1px solid var(--auth-toggle-border);
    background: var(--auth-toggle-bg);
    color: var(--auth-toggle-text);
    border-radius: 999px;
    padding: 8px 14px;
    font-size: 0.8rem;
    font-weight: 600;
    font-family: var(--font-display);
    cursor: pointer;
    backdrop-filter: blur(12px);
}

.auth-theme-toggle:hover {
    border-color: var(--polc-blue);
    color: var(--polc-blue-deep);
}

[data-theme="dark"] .auth-theme-toggle:hover {
    color: var(--polc-blue);
}

.impact-elements-logo--dark {
    display: none;
}

[data-theme="dark"] .impact-elements-logo--light {
    display: none;
}

[data-theme="dark"] .impact-elements-logo--dark {
    display: inline-block;
}

.impact-elements-brand {
    display: inline-block;
    line-height: 0;
}

.impact-elements-brand .impact-elements-logo {
    object-fit: contain;
    opacity: 0.8;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.impact-elements-brand:hover .impact-elements-logo {
    opacity: 1;
    transform: scale(1.05);
}

[data-theme="dark"] .impact-elements-brand .impact-elements-logo--dark {
    opacity: 0.92;
}

[data-theme="dark"] .impact-elements-brand:hover .impact-elements-logo--dark {
    opacity: 1;
}

.ag-logo-dark { display: none; }
[data-theme="dark"] .ag-logo-light { display: none; }
[data-theme="dark"] .ag-logo-dark { display: inline-block; }

.auth-legal-links {
    font-size: 0.7rem;
    letter-spacing: 0.02em;
    color: var(--auth-card-muted);
}
.auth-legal-links a {
    color: var(--auth-card-muted);
    text-decoration: none;
    font-weight: 600;
}
.auth-legal-links a:hover { color: var(--polc-orange); }

.impact-elements-logo--sm {
    max-height: 35px;
}

.impact-elements-logo--md {
    max-height: 50px;
}

.terms-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(6, 7, 10, 0.72);
    z-index: 10000;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.terms-modal-overlay.active {
    display: flex;
}

.terms-modal {
    background-color: var(--auth-card-bg);
    color: var(--auth-card-text);
    border-radius: 20px;
    max-width: 600px;
    width: 100%;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: authModalSlideIn 0.3s ease-out;
    border: 1px solid var(--auth-card-border);
}

@keyframes authModalSlideIn {
    from { transform: translateY(-30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.terms-modal-header {
    padding: 24px 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.terms-modal-header h5 {
    margin: 0;
    color: var(--auth-card-text);
    font-family: var(--font-display);
    font-weight: 600;
}

.terms-modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--auth-card-muted);
    padding: 0;
    line-height: 1;
}

.terms-modal-close:hover {
    color: var(--auth-card-text);
}

.terms-modal-body {
    padding: 20px 24px;
    overflow-y: auto;
    flex: 1;
}

.terms-modal-body h6 {
    color: var(--auth-card-text);
    margin-top: 20px;
    margin-bottom: 10px;
    font-family: var(--font-display);
    font-weight: 600;
}

.terms-modal-body h6:first-child {
    margin-top: 0;
}

.terms-modal-body p,
.terms-modal-body li {
    font-size: 14px;
    line-height: 1.7;
    color: var(--auth-card-muted);
    margin-bottom: 10px;
}

.terms-modal-body ul {
    padding-left: 20px;
}

.terms-modal-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--auth-input-border);
    background-color: var(--auth-input-bg);
    border-radius: 0 0 20px 20px;
}

.terms-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
}

.terms-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--polc-orange);
}

.terms-checkbox label {
    font-size: 14px;
    color: var(--auth-card-text);
    line-height: 1.5;
}

.terms-checkbox label a {
    color: var(--polc-blue-deep);
    text-decoration: none;
}

[data-theme="dark"] .terms-checkbox label a {
    color: var(--polc-blue);
}

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

.terms-modal-actions {
    display: flex;
    gap: 12px;
}

.terms-modal-actions .btn {
    flex: 1;
    padding: 12px 20px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 14px;
    font-family: var(--font-display);
}

.terms-modal-actions .btn-outline-secondary {
    background-color: var(--auth-card-bg);
    border: 1px solid var(--auth-input-border);
    color: var(--auth-card-text);
}

.terms-modal-actions .btn-outline-secondary:hover {
    background-color: var(--auth-input-bg);
}

.reset-container .card-body {
    background-color: var(--auth-card-bg);
    color: var(--auth-card-text);
}

.reset-container .form-label {
    color: var(--auth-card-muted);
}

.reset-container .form-control {
    background-color: var(--auth-input-bg);
    border-color: var(--auth-input-border);
    color: var(--auth-input-text);
}

.reset-container .form-control:focus {
    background-color: var(--auth-input-bg);
    color: var(--auth-input-text);
}

.reset-container .password-strength {
    background-color: var(--auth-input-border);
}

.reset-container .password-strength-text {
    color: var(--auth-card-muted);
}

.reset-container .input-group-text {
    background-color: var(--auth-input-bg);
    border-color: var(--auth-input-border);
    color: var(--auth-input-text);
}

/* Gateway visual panel (legal/register split layouts) */
.gateway-visual {
    font-family: var(--font-body);
    color: #B9C0CA;
}

.gateway-visual__title {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: -0.02em;
    background: var(--gradient-flow);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.gateway-copy__label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--polc-blue);
}