/* ==========================================================================
   AGRI EXPERT SYSTEM - MODERN AUTH THEME & RESPONSIVE STYLES
   ========================================================================== */

:root {
    /* Global Brand Tokens */
    --auth-bg: #0f172a;
    --auth-ink: #f1f5f9;
    --auth-muted: #94a3b8;
    --auth-accent: #2563eb;
    --auth-accent-2: #1d4ed8;
    --auth-accent-glow: rgba(37, 99, 235, 0.35);
    --auth-sun: #fbbf24;
    --auth-radius: 20px;
    --auth-radius-sm: 12px;

    /* Background Overlays */
    --auth-page-bg: url("../img/auth/dark.jpg");
    --auth-overlay-top: rgba(15, 23, 42, 0.82);
    --auth-overlay-bottom: rgba(15, 23, 42, 0.96);

    /* Visual Column Tokens */
    --auth-visual-ink: #ffffff;
    --auth-visual-muted: rgba(255, 255, 255, 0.78);
    --auth-pill-bg: rgba(255, 255, 255, 0.08);
    --auth-pill-border: rgba(255, 255, 255, 0.16);

    /* Panel Light Theme (Default for panel) */
    --auth-panel-bg: #ffffff;
    --auth-panel-card: rgba(255, 255, 255, 0.94);
    --auth-panel-border: rgba(226, 232, 240, 0.85);
    --auth-panel-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.4) inset;
    --auth-panel-text: #0f172a;
    --auth-panel-muted: #64748b;
    --auth-input-bg: #f8fafc;
    --auth-input-bg-focus: #ffffff;
    --auth-input-border: #cbd5e1;
    --auth-input-text: #0f172a;
    --auth-input-placeholder: #94a3b8;
    --auth-input-icon: #94a3b8;
    --auth-oauth-bg: #ffffff;
    --auth-oauth-border: #e2e8f0;
    --auth-oauth-text: #334155;
    --auth-oauth-hover-bg: #f8fafc;
    --auth-divider-line: #e2e8f0;
    --auth-tabs-bg: rgba(241, 245, 249, 0.85);
    --auth-tabs-border: rgba(226, 232, 240, 0.8);
    --auth-tab-active-ink: #0f172a;
}

/* Dark Mode Theme Tokens */
html.auth-panel-dark,
html.dark-mode {
    --auth-accent: #38bdf8;
    --auth-accent-2: #0284c7;
    --auth-accent-glow: rgba(56, 189, 248, 0.35);
    --auth-panel-bg: #0f172a;
    --auth-panel-card: rgba(15, 23, 42, 0.90);
    --auth-panel-border: rgba(51, 65, 85, 0.75);
    --auth-panel-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
    --auth-panel-text: #f8fafc;
    --auth-panel-muted: #94a3b8;
    --auth-input-bg: rgba(30, 41, 59, 0.70);
    --auth-input-bg-focus: rgba(30, 41, 59, 0.95);
    --auth-input-border: #334155;
    --auth-input-text: #f8fafc;
    --auth-input-placeholder: #64748b;
    --auth-input-icon: #64748b;
    --auth-oauth-bg: rgba(30, 41, 59, 0.75);
    --auth-oauth-border: #334155;
    --auth-oauth-text: #e2e8f0;
    --auth-oauth-hover-bg: rgba(51, 65, 85, 0.85);
    --auth-divider-line: #334155;
    --auth-tabs-bg: rgba(30, 41, 59, 0.8);
    --auth-tabs-border: rgba(51, 65, 85, 0.8);
    --auth-tab-active-ink: #ffffff;
}

*, *::before, *::after {
    box-sizing: border-box;
}

/* Base Body Styles */
body.auth-body {
    margin: 0;
    min-height: 100vh;
    min-height: 100svh;
    min-height: 100dvh;
    font-family: "Inter", "Kantumruy Pro", "Noto Sans Khmer", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 0.975rem;
    line-height: 1.6;
    font-weight: 400;
    color: var(--auth-ink);
    background-color: var(--auth-bg);
    background-image:
        linear-gradient(180deg, var(--auth-overlay-top), var(--auth-overlay-bottom)),
        var(--auth-page-bg);
    background-size: cover, cover;
    background-position: center, center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    padding: calc(24px + env(safe-area-inset-top)) calc(16px + env(safe-area-inset-right))
        calc(24px + env(safe-area-inset-bottom)) calc(16px + env(safe-area-inset-left));
    position: relative;
    overflow-x: hidden;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Ambient glow background decoration */
body.auth-body::before {
    content: "";
    position: fixed;
    top: -10%;
    left: -10%;
    width: 60vw;
    height: 60vw;
    max-width: 600px;
    max-height: 600px;
    background: radial-gradient(circle, color-mix(in srgb, var(--auth-accent) 22%, transparent) 0%, transparent 70%);
    opacity: 0.7;
    pointer-events: none;
    z-index: 1;
    filter: blur(50px);
}

body.auth-body::after {
    content: "";
    position: fixed;
    bottom: -10%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    max-width: 500px;
    max-height: 500px;
    background: radial-gradient(circle, color-mix(in srgb, var(--auth-accent-2) 18%, transparent) 0%, transparent 70%);
    opacity: 0.6;
    pointer-events: none;
    z-index: 1;
    filter: blur(60px);
}

/* Typography for Khmer */
html[lang^="km"] body.auth-body,
html[lang^="km"] body.auth-body input,
html[lang^="km"] body.auth-body button,
html[lang^="km"] body.auth-body select,
html[lang^="km"] body.auth-body textarea {
    font-family: "Kantumruy Pro", "Noto Sans Khmer", "Inter", sans-serif;
    line-height: 1.7;
    letter-spacing: 0 !important;
}

/* Motion Background Layer */
#auth-theme-motion-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
    z-index: 0;
}

/* Auth Shell Container */
.auth-shell {
    width: 100%;
    max-width: 1080px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

/* Auth Card Grid Layout */
.auth-card {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 36px;
    align-items: stretch;
    animation: authCardIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Left Visual Column */
.auth-visual {
    position: relative;
    padding: 32px 28px;
    color: var(--auth-visual-ink);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 540px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--auth-radius);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.auth-visual > * {
    position: relative;
    z-index: 2;
}

.auth-visual-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.auth-brand {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    border-radius: 0 !important;
    padding: 0;
    text-decoration: none !important;
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
    user-select: none;
    box-sizing: border-box;
}

.auth-brand:hover {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    transform: scale(1.06);
    opacity: 0.92;
}

.auth-brand-logo-img {
    height: 44px !important;
    width: auto !important;
    max-height: 44px !important;
    max-width: 50px !important;
    border-radius: 0 !important;
    object-fit: contain;
    flex-shrink: 0;
    display: block;
    border: none !important;
    background: transparent !important;
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.dark-mode .auth-brand-logo-img,
html.dark-mode .auth-brand-logo-img,
html.auth-panel-dark .auth-brand-logo-img {
    content: url('../img/newlogo-dark.svg');
    filter: drop-shadow(0 0 12px rgba(255, 214, 0, 0.35));
}

.auth-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 999px;
    border: 1px solid var(--auth-pill-border);
    background: var(--auth-pill-bg);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(6px);
}

.auth-visual-content {
    margin: auto 0;
    padding: 24px 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.auth-visual-title {
    font-family: "Space Grotesk", "Kantumruy Pro", sans-serif;
    font-size: clamp(2rem, 3.5vw, 2.75rem);
    font-weight: 700;
    line-height: 1.15;
    margin: 0;
    color: #ffffff;
    letter-spacing: -0.02em;
}

.auth-visual-content p {
    margin: 0;
    color: var(--auth-visual-muted);
    font-size: 1.05rem;
    line-height: 1.55;
    max-width: 440px;
}

.auth-feature-list {
    list-style: none;
    margin: 12px 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.auth-feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.auth-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--auth-accent);
    box-shadow: 0 0 12px var(--auth-accent);
    flex-shrink: 0;
}

/* Right Panel (Form Container) */
.auth-panel {
    background: var(--auth-panel-card);
    border: 1px solid var(--auth-panel-border);
    border-radius: var(--auth-radius);
    box-shadow: var(--auth-panel-shadow);
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: var(--auth-panel-text);
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.auth-panel-tools {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

/* Theme Toggle Control */
.auth-theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 4px;
    border-radius: 999px;
    border: 1px solid var(--auth-tabs-border);
    background: var(--auth-tabs-bg);
}

.auth-theme-btn {
    appearance: none;
    border: 0;
    background: transparent;
    cursor: pointer;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--auth-panel-muted);
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

.auth-theme-btn:hover {
    color: var(--auth-panel-text);
}

.auth-theme-btn.is-active {
    color: var(--auth-tab-active-ink);
    background: var(--auth-panel-card);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

/* Panel Header */
.auth-panel-head {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.auth-title {
    font-family: "Space Grotesk", "Kantumruy Pro", sans-serif;
    font-size: clamp(1.5rem, 2.2vw, 1.85rem);
    font-weight: 700;
    margin: 0;
    color: var(--auth-panel-text);
    letter-spacing: -0.01em;
}

.auth-subtitle {
    margin: 0;
    color: var(--auth-panel-muted);
    font-size: 0.925rem;
    line-height: 1.5;
}

.auth-subtitle a {
    color: var(--auth-accent);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.15s ease;
}

.auth-subtitle a:hover {
    text-decoration: underline;
}

/* Form Styles */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.auth-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.auth-field label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--auth-panel-text);
}

.auth-field-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.auth-field-label-row label {
    margin-bottom: 0;
}

.auth-forgot-link {
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--auth-accent);
    text-decoration: none;
    transition: opacity 0.15s ease;
}

.auth-forgot-link:hover {
    text-decoration: underline;
    opacity: 0.85;
}

/* Modern Input Wrapper with Icons & Toggles */
.auth-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.auth-input-icon {
    position: absolute;
    left: 14px;
    color: var(--auth-input-icon);
    font-size: 0.95rem;
    pointer-events: none;
    transition: color 0.2s ease;
    z-index: 2;
}

.auth-input {
    width: 100%;
    height: 46px;
    padding: 10px 14px;
    border-radius: var(--auth-radius-sm);
    border: 1.5px solid var(--auth-input-border);
    background: var(--auth-input-bg);
    color: var(--auth-input-text);
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    appearance: none;
    -webkit-appearance: none;
}

.auth-input-wrapper .auth-input.has-left-icon {
    padding-left: 42px;
}

.auth-input-wrapper .auth-input.has-right-toggle {
    padding-right: 44px;
}

.auth-input::placeholder {
    color: var(--auth-input-placeholder);
    opacity: 1;
}

.auth-input:focus {
    outline: none;
    border-color: var(--auth-accent);
    background: var(--auth-input-bg-focus);
    box-shadow: 0 0 0 3.5px var(--auth-accent-glow);
}

.auth-input-wrapper:focus-within .auth-input-icon {
    color: var(--auth-accent);
}

/* Password Toggle Icon Button */
.auth-password-toggle {
    position: absolute;
    right: 12px;
    background: transparent;
    border: none;
    color: var(--auth-input-icon);
    cursor: pointer;
    font-size: 0.95rem;
    padding: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: color 0.15s ease;
    z-index: 2;
}

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

/* OTP Inline Group */
.auth-otp-group {
    display: flex;
    gap: 8px;
    align-items: center;
    width: 100%;
}

.auth-otp-group .auth-input-wrapper {
    flex: 1;
}

.auth-otp-btn {
    height: 46px;
    padding: 0 16px;
    border-radius: var(--auth-radius-sm);
    border: 1.5px solid color-mix(in srgb, var(--auth-accent) 35%, transparent);
    background: color-mix(in srgb, var(--auth-accent) 12%, transparent);
    color: var(--auth-accent);
    font-weight: 600;
    font-size: 0.875rem;
    white-space: nowrap;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.auth-otp-btn:hover:not(:disabled) {
    background: color-mix(in srgb, var(--auth-accent) 22%, transparent);
    border-color: var(--auth-accent);
}

.auth-otp-btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

/* Primary Submit Button */
.auth-button {
    width: 100%;
    height: 48px;
    padding: 0 20px;
    border: none;
    border-radius: var(--auth-radius-sm);
    background: linear-gradient(135deg, var(--auth-accent) 0%, var(--auth-accent-2) 100%);
    color: #ffffff;
    font-weight: 600;
    font-size: 0.98rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 8px 20px -4px var(--auth-accent-glow);
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.auth-button:hover:not(:disabled) {
    transform: translateY(-1.5px);
    box-shadow: 0 12px 24px -4px var(--auth-accent-glow);
    filter: brightness(1.05);
}

.auth-button:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 4px 12px -2px var(--auth-accent-glow);
}

/* Secondary Button */
.auth-button-secondary {
    width: 100%;
    height: 48px;
    padding: 0 20px;
    border: 1.5px solid var(--auth-input-border);
    border-radius: var(--auth-radius-sm);
    background: transparent;
    color: var(--auth-panel-text);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.auth-button-secondary:hover {
    background: var(--auth-oauth-hover-bg);
    border-color: var(--auth-panel-muted);
}

/* Divider */
.auth-divider {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--auth-panel-muted);
    margin: 4px 0;
}

.auth-divider::before,
.auth-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--auth-divider-line);
}

/* OAuth & Alternative Login Buttons */
.auth-oauth-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
}

.auth-oauth-btn {
    width: 100%;
    height: 46px;
    padding: 0 18px;
    border-radius: var(--auth-radius-sm);
    border: 1.5px solid var(--auth-oauth-border);
    background: var(--auth-oauth-bg);
    color: var(--auth-oauth-text);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.92rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.auth-oauth-btn:hover {
    background: var(--auth-oauth-hover-bg);
    border-color: color-mix(in srgb, var(--auth-accent) 45%, var(--auth-oauth-border));
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    color: var(--auth-panel-text);
    text-decoration: none;
}

.auth-oauth-btn svg {
    flex-shrink: 0;
}

/* Footer / Switch Screen */
.auth-foot {
    text-align: center;
    font-size: 0.9rem;
    color: var(--auth-panel-muted);
    margin-top: 4px;
}

.auth-foot a {
    color: var(--auth-accent);
    text-decoration: none;
    font-weight: 600;
    margin-left: 4px;
    transition: color 0.15s ease;
}

.auth-foot a:hover {
    text-decoration: underline;
}

/* Validation Errors */
.auth-errors {
    font-size: 0.8rem;
    font-weight: 500;
    color: #ef4444;
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 2px;
    animation: authFadeIn 0.2s ease;
}

/* Flash Messages */
.flash {
    padding: 12px 16px;
    border-radius: var(--auth-radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid transparent;
}

.flash-danger {
    background: rgba(239, 68, 68, 0.12);
    border-color: rgba(239, 68, 68, 0.25);
    color: #dc2626;
}

html.auth-panel-dark .flash-danger,
html.dark-mode .flash-danger {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.4);
    color: #fca5a5;
}

.flash-success {
    background: color-mix(in srgb, var(--auth-accent) 12%, transparent);
    border-color: color-mix(in srgb, var(--auth-accent) 25%, transparent);
    color: var(--auth-accent-2);
}

html.auth-panel-dark .flash-success,
html.dark-mode .flash-success {
    background: color-mix(in srgb, var(--auth-accent) 20%, transparent);
    border-color: color-mix(in srgb, var(--auth-accent) 40%, transparent);
    color: #86efac;
}

/* Animations */
@keyframes authCardIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes authFadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

.auth-stagger {
    animation: authFadeIn 0.4s ease forwards;
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */

/* Medium Devices & Tablets (max-width: 991px) */
@media (max-width: 991px) {
    .auth-card {
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 540px;
        margin: 0 auto;
    }

    .auth-visual {
        min-height: auto;
        padding: 24px 20px;
        border-radius: var(--auth-radius);
        gap: 16px;
    }

    .auth-visual-content {
        padding: 8px 0;
    }

    .auth-visual-title {
        font-size: 1.85rem;
    }

    .auth-visual-content p {
        font-size: 0.95rem;
    }

    .auth-feature-list {
        display: none; /* Hide detailed bullets on tablets/mobile to keep the form prominent */
    }

    .auth-panel {
        padding: 28px 24px;
    }
}

/* Small Screens & Mobile Phones (max-width: 640px) */
@media (max-width: 640px) {
    body.auth-body {
        padding: 12px 10px;
        padding: calc(12px + env(safe-area-inset-top)) calc(10px + env(safe-area-inset-right))
            calc(16px + env(safe-area-inset-bottom)) calc(10px + env(safe-area-inset-left));
        align-items: flex-start;
    }

    .auth-shell {
        max-width: 100%;
    }

    .auth-card {
        gap: 12px;
    }

    .auth-visual {
        padding: 18px 16px;
        border-radius: 16px;
    }

    .auth-visual-top {
        gap: 8px;
    }

    .auth-visual-title {
        font-size: 1.5rem;
    }

    .auth-visual-content p {
        font-size: 0.875rem;
    }

    .auth-panel {
        padding: 22px 18px;
        border-radius: 18px;
        gap: 14px;
    }

    .auth-title {
        font-size: 1.45rem;
    }

    .auth-subtitle {
        font-size: 0.85rem;
    }

    .auth-input {
        height: 44px;
        font-size: 0.92rem;
    }

    .auth-button {
        height: 46px;
        font-size: 0.95rem;
    }

    .auth-oauth-btn {
        height: 44px;
        font-size: 0.875rem;
    }

    .auth-otp-group {
        flex-direction: row;
    }

    .auth-otp-btn {
        height: 44px;
        padding: 0 12px;
        font-size: 0.825rem;
    }
}

/* Extra Small Phones (<380px) */
@media (max-width: 380px) {
    .auth-panel {
        padding: 18px 14px;
    }

    .auth-input-wrapper .auth-input.has-left-icon {
        padding-left: 36px;
    }

    .auth-input-icon {
        left: 10px;
    }

    .auth-otp-group {
        flex-direction: column;
        align-items: stretch;
    }

    .auth-otp-btn {
        width: 100%;
    }
}

/* ==========================================================================
   ULTRA-CLEAN & MODERN SINGLE-CARD AUTH LAYOUT
   ========================================================================== */

.auth-clean-body {
    margin: 0;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    background-color: #0b1117;
    background-image: 
        linear-gradient(180deg, rgba(9, 14, 19, 0.70), rgba(9, 14, 19, 0.88)),
        url("../img/auth/dark.jpg");
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    font-family: "Plus Jakarta Sans", "Inter", "Kantumruy Pro", sans-serif;
    color: #0f172a;
    padding: max(32px, env(safe-area-inset-top)) 16px max(40px, env(safe-area-inset-bottom));
    box-sizing: border-box;
    position: relative;
    overflow-x: hidden;
    overflow-y: auto;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.dark-mode .auth-clean-body,
html.dark-mode .auth-clean-body,
html.auth-panel-dark .auth-clean-body {
    background-color: #05080c;
    background-image: 
        linear-gradient(180deg, rgba(5, 8, 12, 0.78), rgba(5, 8, 12, 0.94)),
        url("../img/auth/dark.jpg");
    color: #f8fafc;
}

/* Ambient glow accents */
.auth-clean-body::before {
    content: "";
    position: fixed;
    top: -15%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    max-width: 500px;
    max-height: 500px;
    background: radial-gradient(circle, rgba(11, 82, 214, 0.16) 0%, rgba(9, 201, 255, 0.08) 40%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    filter: blur(60px);
}

.auth-clean-body::after {
    content: "";
    position: fixed;
    bottom: -15%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    max-width: 500px;
    max-height: 500px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.14) 0%, rgba(11, 82, 214, 0.08) 40%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    filter: blur(60px);
}

.auth-clean-container {
    width: 100%;
    max-width: 440px;
    margin: auto 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    z-index: 1;
    animation: authFadeUp 0.45s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes authFadeUp {
    from {
        opacity: 0;
        transform: translateY(12px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Topbar Controls */
.auth-clean-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 4px;
}

.auth-lang-pills {
    display: inline-flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 999px;
    padding: 3px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.dark-mode .auth-lang-pills,
html.dark-mode .auth-lang-pills,
html.auth-panel-dark .auth-lang-pills {
    background: rgba(24, 24, 27, 0.65);
    border-color: rgba(255, 255, 255, 0.12);
}

.auth-lang-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    color: #e2e8f0;
    text-decoration: none;
    transition: all 0.2s ease;
}

.auth-lang-btn:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.15);
    text-decoration: none;
}

.dark-mode .auth-lang-btn:hover {
    color: #ffffff;
}

.auth-lang-btn.is-active {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #ffffff !important;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.35);
}

.dark-mode .auth-lang-btn.is-active,
html.auth-panel-dark .auth-lang-btn.is-active {
    background: linear-gradient(135deg, #38bdf8 0%, #0284c7 100%);
    color: #0f172a !important;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(56, 189, 248, 0.35);
}

.auth-theme-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 999px;
    padding: 3px 6px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.2s ease;
}

.dark-mode .auth-theme-pill,
html.dark-mode .auth-theme-pill,
html.auth-panel-dark .auth-theme-pill {
    background: rgba(24, 24, 27, 0.65);
    border-color: rgba(255, 255, 255, 0.12);
}

/* Centered Floating Card with Glassmorphism */
.auth-clean-card {
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 28px;
    padding: 38px 36px;
    box-shadow: 
        0 20px 45px -15px rgba(2, 6, 23, 0.10),
        0 0 0 1px rgba(255, 255, 255, 0.9) inset,
        0 2px 4px rgba(0, 0, 0, 0.02);
    backdrop-filter: blur(28px);
    -webkit-backdrop-filter: blur(28px);
    transition: all 0.3s ease;
}

.dark-mode .auth-clean-card,
html.dark-mode .auth-clean-card,
html.auth-panel-dark .auth-clean-card {
    background: rgba(15, 23, 42, 0.90);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 
        0 25px 60px -15px rgba(0, 0, 0, 0.65),
        0 0 0 1px rgba(255, 255, 255, 0.04) inset;
}

/* Card Header */
.auth-card-header {
    text-align: center;
    margin-bottom: 28px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.auth-brand-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    border-radius: 0 !important;
    padding: 0;
    margin-bottom: 18px;
    text-decoration: none !important;
    user-select: none;
    box-sizing: border-box;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
}

.auth-brand-badge:hover,
.auth-brand-badge:focus-visible {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    transform: scale(1.06);
    opacity: 0.92;
    outline: none;
}

.dark-mode .auth-brand-badge,
html.dark-mode .auth-brand-badge,
html.auth-panel-dark .auth-brand-badge {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
}

.dark-mode .auth-brand-badge:hover,
html.dark-mode .auth-brand-badge:hover,
html.auth-panel-dark .auth-brand-badge:hover,
.dark-mode .auth-brand-badge:focus-visible,
html.dark-mode .auth-brand-badge:focus-visible,
html.auth-panel-dark .auth-brand-badge:focus-visible {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
}

.auth-clean-logo {
    height: 52px !important;
    width: auto !important;
    max-height: 52px !important;
    max-width: 58px !important;
    border-radius: 0 !important;
    object-fit: contain;
    flex-shrink: 0;
    display: block;
    border: none !important;
    background: transparent !important;
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.dark-mode .auth-clean-logo,
html.dark-mode .auth-clean-logo,
html.auth-panel-dark .auth-clean-logo {
    content: url('../img/newlogo-dark.svg');
    filter: drop-shadow(0 0 14px rgba(255, 214, 0, 0.35));
}

.auth-brand-badge:hover .auth-clean-logo {
    transform: scale(1.06);
}

.auth-clean-title {
    font-size: 1.45rem;
    font-weight: 800;
    margin: 0 0 6px;
    letter-spacing: -0.025em;
    color: #0f172a;
    line-height: 1.3;
}

.dark-mode .auth-clean-title {
    color: #f8fafc;
}

.auth-clean-subtitle {
    font-size: 0.875rem;
    color: #64748b;
    margin: 0;
    line-height: 1.55;
    max-width: 360px;
}

.dark-mode .auth-clean-subtitle {
    color: #94a3b8;
}

/* Form Styles */
.auth-clean-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.auth-form-group {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.auth-form-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: #334155;
    margin: 0;
}

.dark-mode .auth-form-label {
    color: #cbd5e1;
}

.auth-label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.auth-forgot-password {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--auth-accent, #2563eb);
    text-decoration: none;
    transition: color 0.15s;
}

.auth-forgot-password:hover {
    color: #1d4ed8;
    text-decoration: underline;
}

.dark-mode .auth-forgot-password:hover,
html.auth-panel-dark .auth-forgot-password:hover {
    color: #7dd3fc;
}

.auth-input-box {
    position: relative;
    display: flex;
    align-items: center;
}

.auth-field-icon {
    position: absolute;
    left: 14px;
    color: #94a3b8;
    font-size: 0.9rem;
    pointer-events: none;
    transition: color 0.2s;
}

.auth-clean-input {
    width: 100%;
    height: 44px;
    padding: 0 14px 0 40px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    font-size: 0.9rem;
    color: #0f172a;
    font-family: inherit;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.auth-clean-input:focus {
    background: #ffffff;
    border-color: #2563eb;
    outline: none;
    box-shadow: 0 0 0 3.5px rgba(37, 99, 235, 0.2);
}

.auth-clean-input:focus ~ .auth-field-icon {
    color: #2563eb;
}

.dark-mode .auth-clean-input {
    background: rgba(30, 41, 59, 0.7);
    border-color: #334155;
    color: #f8fafc;
}

.dark-mode .auth-clean-input:focus {
    background: rgba(30, 41, 59, 0.95);
    border-color: #38bdf8;
    box-shadow: 0 0 0 3.5px rgba(56, 189, 248, 0.2);
}

.dark-mode .auth-clean-input:focus ~ .auth-field-icon {
    color: #38bdf8;
}

.auth-clean-input.has-toggle {
    padding-right: 42px;
}

.auth-password-toggle-btn {
    position: absolute;
    right: 6px;
    background: transparent;
    border: none;
    padding: 8px 10px;
    color: #94a3b8;
    cursor: pointer;
    border-radius: 8px;
    font-size: 0.9rem;
    transition: color 0.15s;
}

.auth-password-toggle-btn:hover {
    color: #0f172a;
}

.dark-mode .auth-password-toggle-btn:hover {
    color: #f8fafc;
}

/* OTP / Verification Code Row */
.auth-otp-row {
    display: flex;
    gap: 10px;
    align-items: stretch;
}

.auth-otp-input-box {
    position: relative;
    display: flex;
    align-items: center;
    flex: 1;
}

.auth-send-code-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    height: 44px;
    padding: 0 16px;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #ffffff;
    border: none;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: inherit;
    letter-spacing: -0.01em;
    white-space: nowrap;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
    transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    user-select: none;
}

.auth-send-code-btn:hover:not(:disabled) {
    background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
    transform: translateY(-1px);
    color: #ffffff;
}

.auth-send-code-btn:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.2);
}

.dark-mode .auth-send-code-btn,
html.auth-panel-dark .auth-send-code-btn {
    background: linear-gradient(135deg, #38bdf8 0%, #0284c7 100%);
    color: #0f172a;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(56, 189, 248, 0.25);
}

.dark-mode .auth-send-code-btn:hover:not(:disabled),
html.auth-panel-dark .auth-send-code-btn:hover:not(:disabled) {
    background: linear-gradient(135deg, #7dd3fc 0%, #0369a1 100%);
    color: #0f172a;
    box-shadow: 0 4px 14px rgba(56, 189, 248, 0.35);
}

.auth-send-code-btn:disabled,
.auth-send-code-btn.is-disabled {
    background: #e2e8f0;
    color: #64748b;
    border: 1px solid #cbd5e1;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
    opacity: 0.85;
}

.dark-mode .auth-send-code-btn:disabled,
html.dark-mode .auth-send-code-btn:disabled,
.dark-mode .auth-send-code-btn.is-disabled,
html.dark-mode .auth-send-code-btn.is-disabled {
    background: rgba(30, 41, 59, 0.7);
    color: #94a3b8;
    border-color: rgba(255, 255, 255, 0.1);
}

.auth-field-error {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #ef4444;
    font-size: 0.78rem;
    font-weight: 500;
    margin-top: 4px;
    animation: authFadeUp 0.2s ease;
}

.dark-mode .auth-field-error {
    color: #f87171;
}

/* Submit Button */
.auth-primary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 44px;
    margin-top: 4px;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #ffffff;
    border: none;
    border-radius: 12px;
    font-size: 0.92rem;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    transition: all 0.2s ease;
}

.auth-primary-btn:hover {
    background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.45);
    transform: translateY(-1px);
}

.auth-primary-btn:active {
    transform: translateY(0);
}

.dark-mode .auth-primary-btn,
html.auth-panel-dark .auth-primary-btn {
    background: linear-gradient(135deg, #38bdf8 0%, #0284c7 100%);
    color: #0f172a;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3);
}

.dark-mode .auth-primary-btn:hover,
html.auth-panel-dark .auth-primary-btn:hover {
    background: linear-gradient(135deg, #7dd3fc 0%, #0369a1 100%);
    color: #0f172a;
    box-shadow: 0 6px 16px rgba(56, 189, 248, 0.45);
}

/* Divider */
.auth-clean-divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 20px 0 16px;
    color: #94a3b8;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.auth-clean-divider::before,
.auth-clean-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid #e2e8f0;
}

.dark-mode .auth-clean-divider::before,
.dark-mode .auth-clean-divider::after {
    border-bottom-color: rgba(255, 255, 255, 0.08);
}

.auth-clean-divider span {
    padding: 0 12px;
}

/* Social Buttons */
.auth-social-stack {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.auth-social-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    height: 42px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    color: #334155;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.auth-social-btn:hover {
    background: #f8fafc;
    border-color: #cbd5e1;
    color: #0f172a;
    text-decoration: none;
}

.dark-mode .auth-social-btn {
    background: rgba(39, 39, 42, 0.6);
    border-color: rgba(255, 255, 255, 0.1);
    color: #e2e8f0;
}

.dark-mode .auth-social-btn:hover {
    background: rgba(39, 39, 42, 0.95);
    border-color: rgba(255, 255, 255, 0.2);
    color: #ffffff;
}

.auth-google-svg {
    width: 18px;
    height: 18px;
}

/* Footer */
.auth-card-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 24px;
    font-size: 0.82rem;
    color: #64748b;
}

.dark-mode .auth-card-footer {
    color: #94a3b8;
}

.auth-register-link {
    font-weight: 700;
    color: #2563eb;
    text-decoration: none;
    transition: color 0.15s;
}

.auth-register-link:hover {
    color: #1d4ed8;
    text-decoration: underline;
}

.dark-mode .auth-register-link,
html.auth-panel-dark .auth-register-link {
    color: #38bdf8;
}

.dark-mode .auth-register-link:hover,
html.auth-panel-dark .auth-register-link:hover {
    color: #7dd3fc;
}

@media (max-width: 480px) {
    .auth-clean-card {
        padding: 28px 20px;
        border-radius: 22px;
    }
    .auth-brand-badge {
        margin-bottom: 14px;
    }
    .auth-clean-logo {
        height: 44px !important;
        width: auto !important;
        max-height: 44px !important;
        max-width: 50px !important;
    }
    .auth-clean-title {
        font-size: 1.28rem;
    }
}