/* Authentication page redesign */
        .auth-shell {
            min-height: 100vh;
            display: grid;
            grid-template-columns: minmax(420px, 0.92fr) minmax(520px, 1.08fr);
            background: #ffffff;
            color: #111827;
            overflow: hidden;
        }

        .auth-brand-panel {
            position: relative;
            min-height: 100vh;
            background:
                radial-gradient(circle at 12% 8%, rgba(204, 237, 187, 0.68) 0, rgba(204, 237, 187, 0.38) 38%, transparent 39%),
                linear-gradient(135deg, #f0fae9 0%, #eef8e7 56%, #e6f3db 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 70px 72px;
            overflow: hidden;
        }

        .auth-brand-panel::before,
        .auth-brand-panel::after {
            content: '';
            position: absolute;
            border-radius: 50%;
            pointer-events: none;
        }

        .auth-brand-panel::before {
            width: 980px;
            height: 980px;
            left: -390px;
            bottom: -225px;
            border: 88px solid rgba(140, 204, 98, 0.16);
        }

        .auth-brand-panel::after {
            width: 720px;
            height: 720px;
            right: -355px;
            top: -255px;
            background: rgba(255, 255, 255, 0.18);
        }

        .auth-brand-panel-inner {
            position: relative;
            z-index: 1;
            width: min(520px, 100%);
            min-height: 660px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .auth-login-panel-inner {
            align-items: center;
            text-align: center;
        }

        .auth-register-panel-inner {
            align-items: flex-start;
            text-align: left;
        }

        .auth-brand-logo {
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 64px;
        }

        .auth-brand-logo img {
            width: 300px;
            max-width: 100%;
            height: auto;
            object-fit: contain;
            display: block;
        }

        .auth-register-panel-inner .auth-brand-logo {
            justify-content: flex-start;
            margin-bottom: 62px;
        }

        .auth-brand-copy h1 {
            margin: 0 0 16px;
            color: #064918;
            font-size: 32px;
            line-height: 1.18;
            font-weight: 800;
            letter-spacing: -0.03em;
        }

        .auth-register-panel-inner .auth-brand-copy h1 {
            font-size: 36px;
            line-height: 1.2;
        }

        .auth-brand-copy p {
            margin: 0;
            color: #374151;
            font-size: 17px;
            line-height: 1.62;
            font-weight: 500;
            letter-spacing: 0.01em;
        }

        .auth-tips-area {
            width: min(480px, 100%);
            margin-top: 66px;
            text-align: left;
        }

        .auth-tips-title {
            font-size: 14px;
            line-height: 1.2;
            font-weight: 800;
            color: #0f3f1f;
            margin: 0 0 14px 14px;
        }

        .auth-tip-card {
            min-height: 94px;
            background: rgba(255, 255, 255, 0.78);
            border: 1px solid rgba(24, 76, 36, 0.08);
            border-radius: 12px;
            box-shadow: 0 14px 34px rgba(35, 68, 33, 0.08);
            padding: 20px 24px;
            display: grid;
            grid-template-columns: 54px 1fr;
            gap: 18px;
            align-items: center;
            backdrop-filter: blur(6px);
        }

        .auth-tip-icon,
        .auth-feature-icon {
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: #dff3d7;
            color: #0f6d1f;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex: 0 0 auto;
        }

        .auth-tip-icon svg,
        .auth-feature-icon svg,
        .auth-input-icon svg,
        .auth-password-toggle svg {
            width: 22px;
            height: 22px;
            fill: none;
            stroke: currentColor;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .auth-tip-text {
            display: block;
            color: #111827;
            font-size: 17px;
            line-height: 1.42;
            font-weight: 700;
            animation: authTipFade 420ms ease;
        }

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

        .auth-tip-dots {
            display: flex;
            justify-content: center;
            gap: 14px;
            margin-top: 36px;
        }

        .auth-tip-dot {
            width: 11px;
            height: 11px;
            border-radius: 999px;
            border: none;
            padding: 0;
            background: rgba(65, 95, 72, 0.14);
            cursor: pointer;
            transition: background 180ms ease, transform 180ms ease;
        }

        .auth-tip-dot.active {
            background: #0e8d20;
            transform: scale(1.05);
        }

        .auth-feature-list {
            margin-top: 42px;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .auth-feature-item {
            display: grid;
            grid-template-columns: 54px 1fr;
            align-items: center;
            gap: 18px;
            color: #111827;
            font-size: 17px;
            line-height: 1.35;
            font-weight: 700;
        }

        .auth-form-panel {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 72px 64px;
            background:
                radial-gradient(circle at 50% 80%, rgba(15, 23, 42, 0.035), transparent 34%),
                #ffffff;
        }

        .auth-card {
            width: min(660px, 100%);
            background: rgba(255, 255, 255, 0.97);
            border: 1px solid rgba(17, 24, 39, 0.06);
            border-radius: 14px;
            box-shadow: 0 22px 58px rgba(15, 23, 42, 0.12);
            padding: 54px 66px 38px;
        }

        .auth-register-card {
            width: min(680px, 100%);
        }

        .auth-card-title {
            margin: 0 0 12px;
            color: #064918;
            font-size: 38px;
            line-height: 1.1;
            font-weight: 800;
            letter-spacing: -0.03em;
        }

        .auth-register-card .auth-card-title {
            font-size: 42px;
        }

        .auth-card-subtitle {
            margin: 0 0 34px;
            color: #4b5563;
            font-size: 17px;
            line-height: 1.45;
            font-weight: 500;
        }

        .auth-form {
            display: flex;
            flex-direction: column;
            gap: 22px;
        }

        .auth-form-group {
            margin: 0;
        }

        .auth-form-label {
            display: block;
            margin-bottom: 10px;
            color: #111827;
            font-size: 14px;
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: 0.01em;
        }

        .auth-input-wrap,
        .auth-select-wrap {
            position: relative;
            display: flex;
            align-items: center;
            width: 100%;
        }

        .auth-input-icon {
            position: absolute;
            left: 18px;
            top: 50%;
            transform: translateY(-50%);
            color: #6b7280;
            z-index: 2;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            pointer-events: none;
        }

        .auth-input,
        .auth-select-wrap select {
            width: 100%;
            min-height: 54px;
            border: 1px solid #d8dde3;
            border-radius: 8px;
            background: #fff;
            color: #111827;
            font-size: 16px;
            line-height: 1.2;
            padding: 0 18px 0 62px;
            transition: border-color 160ms ease, box-shadow 160ms ease;
            font-family: inherit;
        }

        .auth-input::placeholder,
        .auth-select-wrap select:invalid {
            color: #6b7280;
        }

        .auth-input:focus,
        .auth-select-wrap select:focus {
            outline: none;
            border-color: rgba(56, 184, 3, 0.55);
            box-shadow: 0 0 0 3px rgba(56, 184, 3, 0.11);
        }

        .auth-password-input {
            padding-right: 56px;
        }

        .auth-password-toggle {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            width: 34px;
            height: 34px;
            border: none;
            background: transparent;
            color: #4b5563;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            border-radius: 9px;
            transition: background 160ms ease, color 160ms ease;
        }

        .auth-password-toggle:hover {
            background: #f3f8f1;
            color: #0f7b20;
        }

        .auth-select-wrap .form-input,
        .auth-select-wrap select {
            appearance: none;
        }

        .auth-forgot-row {
            display: flex;
            justify-content: flex-end;
            margin-top: -8px;
        }

        .auth-link-btn,
        .auth-switch-row a {
            background: transparent;
            border: none;
            padding: 0;
            color: #0d6f1a;
            font-size: 14px;
            font-weight: 600;
            text-decoration: underline;
            cursor: pointer;
        }

        .auth-primary-btn {
            width: 100%;
            min-height: 58px;
            border: none;
            border-radius: 8px;
            background: linear-gradient(180deg, #128320 0%, #087214 100%);
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            cursor: pointer;
            box-shadow: 0 12px 24px rgba(8, 114, 20, 0.18);
            transition: transform 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
        }

        .auth-primary-btn:hover:not(:disabled) {
            transform: translateY(-1px);
            box-shadow: 0 16px 30px rgba(8, 114, 20, 0.22);
        }

        .auth-primary-btn:disabled {
            opacity: 0.72;
            cursor: not-allowed;
            transform: none;
        }

        .auth-switch-row {
            text-align: center;
            margin: 26px 0 0;
            color: #4b5563;
            font-size: 15px;
            line-height: 1.5;
            font-weight: 500;
        }

        .auth-footer {
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid #e5e7eb;
            text-align: center;
            color: #6b7280;
            font-size: 14px;
            line-height: 1.4;
        }

        @media (max-width: 1100px) {
            .auth-shell {
                grid-template-columns: 1fr;
                min-height: 100vh;
                overflow-y: auto;
            }

            .auth-brand-panel {
                min-height: auto;
                padding: 48px 28px 34px;
            }

            .auth-brand-panel-inner {
                min-height: 0;
                align-items: center;
                text-align: center;
            }

            .auth-register-panel-inner .auth-brand-logo,
            .auth-brand-logo {
                justify-content: center;
                margin-bottom: 26px;
            }

            .auth-tips-area {
                margin-top: 34px;
            }

            .auth-feature-list {
                margin-top: 30px;
            }

            .auth-form-panel {
                min-height: auto;
                padding: 34px 22px 48px;
            }
        }

        @media (max-width: 640px) {
            .auth-brand-panel {
                display: none;
            }

            .auth-shell {
                display: block;
                background: #f8faf9;
            }

            .auth-form-panel {
                min-height: 100vh;
                padding: 24px 16px;
            }

            .auth-card {
                padding: 36px 22px 26px;
                box-shadow: 0 16px 42px rgba(15, 23, 42, 0.10);
                border-radius: 14px;
            }

            .auth-card-title,
            .auth-register-card .auth-card-title {
                font-size: 32px;
            }
        }


        /* Auth execution polish: shared grid, fixed country selector, calm ambient motion */
        .auth-shell {
            grid-template-columns: minmax(440px, 0.95fr) minmax(520px, 1.05fr);
        }

        .auth-brand-panel {
            padding: 72px clamp(48px, 7vw, 84px);
            background:
                radial-gradient(circle at 16% 12%, rgba(211, 241, 193, 0.64) 0, rgba(211, 241, 193, 0.36) 36%, transparent 37%),
                linear-gradient(135deg, #f3fbec 0%, #edf8e4 55%, #e8f4df 100%);
        }

        .auth-brand-panel::before {
            border-color: rgba(126, 196, 88, 0.14);
            animation: authLiquidDriftCalm 28s ease-in-out infinite alternate;
        }

        .auth-brand-panel::after {
            background: radial-gradient(circle, rgba(255,255,255,0.34), rgba(255,255,255,0.12) 58%, transparent 68%);
            animation: authLiquidFloatCalm 34s ease-in-out infinite alternate;
        }

        .auth-shell-register .auth-brand-panel::before {
            animation-duration: 24s;
        }

        .auth-shell-register .auth-brand-panel::after {
            animation-duration: 30s;
        }

        .auth-brand-panel-inner,
        .auth-login-panel-inner,
        .auth-register-panel-inner {
            width: min(520px, 100%);
            min-height: 640px;
            align-items: flex-start;
            text-align: left;
            justify-content: center;
        }

        .auth-brand-logo,
        .auth-register-panel-inner .auth-brand-logo {
            justify-content: flex-start;
            margin-bottom: 54px;
        }

        .auth-brand-logo img {
            width: 286px;
        }

        .auth-brand-copy h1,
        .auth-register-panel-inner .auth-brand-copy h1 {
            font-size: 34px;
            line-height: 1.16;
            font-weight: 800;
            letter-spacing: -0.028em;
        }

        .auth-brand-copy p {
            font-size: 16px;
            line-height: 1.58;
            font-weight: 500;
            color: #374151;
        }

        .auth-tips-area {
            width: min(440px, 100%);
            margin-top: 38px;
            text-align: left;
        }

        .auth-tips-title {
            margin-left: 0;
            margin-bottom: 12px;
            font-weight: 750;
        }

        .auth-tip-card {
            min-height: 88px;
            grid-template-columns: 50px 1fr;
            gap: 16px;
            padding: 18px 20px;
            border-radius: 14px;
            background: rgba(255, 255, 255, 0.74);
            box-shadow: 0 12px 30px rgba(35, 68, 33, 0.075);
        }

        .auth-tip-icon,
        .auth-feature-icon {
            width: 50px;
            height: 50px;
            background: rgba(214, 241, 205, 0.92);
        }

        .auth-tip-copy {
            display: flex;
            flex-direction: column;
            gap: 4px;
            animation: authTipFade 420ms ease;
        }

        .auth-tip-title {
            color: #102118;
            font-size: 15px;
            line-height: 1.25;
            font-weight: 750;
            letter-spacing: -0.01em;
        }

        .auth-tip-description {
            color: #4b5563;
            font-size: 13px;
            line-height: 1.4;
            font-weight: 500;
        }

        .auth-tip-text {
            font-weight: 600;
        }

        .auth-tip-dots {
            justify-content: center;
            gap: 10px;
            margin-top: 22px;
        }

        .auth-tip-dot {
            width: 9px;
            height: 9px;
        }

        .auth-feature-list {
            margin-top: 38px;
            gap: 16px;
        }

        .auth-feature-item {
            grid-template-columns: 50px 1fr;
            gap: 16px;
            font-size: 15px;
            font-weight: 700;
        }

        .auth-form-panel {
            padding: 72px clamp(44px, 7vw, 76px);
        }

        .auth-card,
        .auth-register-card {
            width: min(620px, 100%);
            border-radius: 18px;
            padding: 52px 62px 36px;
            box-shadow: 0 22px 58px rgba(15, 23, 42, 0.115);
        }

        .auth-card-title,
        .auth-register-card .auth-card-title {
            font-size: 38px;
            line-height: 1.1;
        }

        .auth-card-subtitle {
            margin-bottom: 32px;
            font-size: 16px;
        }

        .auth-form {
            gap: 20px;
        }

        .auth-form-label {
            font-size: 14px;
            font-weight: 750;
            margin-bottom: 9px;
        }

        .auth-input,
        .auth-select-wrap select,
        .auth-select-wrap .combo-input {
            width: 100%;
            min-height: 54px;
            height: 54px;
            border: 1px solid #d8dde3;
            border-radius: 10px;
            background: #fff;
            color: #111827;
            font-size: 15px;
            line-height: 1.2;
            padding: 0 18px 0 62px;
            font-family: inherit;
            box-sizing: border-box;
        }

        .auth-select-wrap .combo {
            width: 100%;
            position: relative;
        }

        .auth-select-wrap .combo-row {
            position: relative;
            width: 100%;
            display: flex;
            align-items: center;
        }

        .auth-select-wrap .combo-input {
            padding-right: 54px;
        }

        .auth-select-wrap .combo-btn {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            width: 34px;
            height: 34px;
            border: none;
            border-radius: 9px;
            background: transparent;
            color: #4b5563;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 3;
        }

        .auth-select-wrap .combo-btn:hover {
            background: #f3f8f1;
            color: #0f7b20;
        }

        .auth-select-wrap .combo-menu {
            width: 100%;
            box-sizing: border-box;
            border-radius: 12px;
            margin-top: 8px;
            box-shadow: 0 16px 36px rgba(15, 23, 42, 0.12);
            border: 1px solid rgba(17, 24, 39, 0.10);
        }

        .auth-input:focus,
        .auth-select-wrap select:focus,
        .auth-select-wrap .combo-input:focus {
            outline: none;
            border-color: rgba(56, 184, 3, 0.55);
            box-shadow: 0 0 0 3px rgba(56, 184, 3, 0.11);
        }

        .auth-input-icon {
            left: 18px;
            width: 24px;
            height: 24px;
        }

        .auth-password-toggle {
            right: 13px;
        }

        .auth-primary-btn {
            min-height: 56px;
            border-radius: 12px;
            background: var(--primary-color);
            font-size: 15px;
            font-weight: 750;
            box-shadow: 0 10px 22px rgba(56, 184, 3, 0.18);
            transition: background 160ms ease, box-shadow 160ms ease, transform 160ms ease, opacity 160ms ease;
        }

        .auth-primary-btn:hover:not(:disabled) {
            background: var(--primary-dark);
            box-shadow: 0 14px 28px rgba(56, 184, 3, 0.22);
            transform: translateY(-1px);
        }

        .auth-switch-row {
            margin-top: 24px;
            font-size: 14px;
        }

        .auth-footer {
            margin-top: 30px;
            padding-top: 22px;
            font-size: 13px;
        }

        @keyframes authLiquidDriftCalm {
            from { transform: translate3d(0, 0, 0) rotate(0deg); }
            to { transform: translate3d(22px, -18px, 0) rotate(2deg); }
        }

        @keyframes authLiquidFloatCalm {
            from { transform: translate3d(0, 0, 0) scale(1); }
            to { transform: translate3d(-18px, 20px, 0) scale(1.035); }
        }

        @media (prefers-reduced-motion: reduce) {
            .auth-brand-panel::before,
            .auth-brand-panel::after,
            .auth-tip-copy,
            .auth-tip-text {
                animation: none !important;
            }

            .auth-primary-btn:hover:not(:disabled) {
                transform: none;
            }
        }

        @media (max-width: 1100px) {
            .auth-brand-panel-inner,
            .auth-login-panel-inner,
            .auth-register-panel-inner {
                min-height: 0;
                align-items: center;
                text-align: center;
            }

            .auth-brand-logo,
            .auth-register-panel-inner .auth-brand-logo {
                justify-content: center;
                margin-bottom: 26px;
            }

            .auth-tips-area {
                margin-top: 30px;
                text-align: left;
            }

            .auth-card,
            .auth-register-card {
                width: min(620px, 100%);
            }
        }