/* ===== 네오 브루탈리즘 디자인 토큰 ===== */
        :root {
            --nb-cream: #F0FFF4;
            --nb-black: #191F28;
            --nb-orange: #0D9488;
            --nb-lime: #99F6E4;
            --nb-lime-bg: #CCFBF1;
            --nb-lavender: #C4B5FD;
            --nb-yellow: #FDE68A;
            --nb-pink: #FECDD3;
            --nb-sky: #DDD6FE;
            --nb-peach: #FDE68A;

            --nb-text: #191F28;
            --nb-text-sub: #555;
            --nb-text-muted: #888;

            --nb-border: 1.5px solid #D1D5DB;
            --nb-border-thick: 2px solid #191F28;

            --nb-shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
            --nb-shadow: 0 2px 8px rgba(0,0,0,0.1);
            --nb-shadow-hover: 0 4px 16px rgba(0,0,0,0.12);
            --nb-shadow-xl: 8px 8px 0px #191F28;

            --nb-radius: 8px;
            --nb-radius-lg: 12px;

            --nb-transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== 리셋 & 전역 ===== */
        * { margin: 0; padding: 0; box-sizing: border-box; }

        html { scrollbar-gutter: stable; }

        body {
            font-family: 'Pretendard Variable', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
            color: var(--nb-text);
            background: var(--nb-cream);
            -webkit-font-smoothing: antialiased;
            min-height: 100vh;
        }

        /* ===== 로그인 페이지 레이아웃 ===== */
        .login-page {
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            background: var(--nb-cream);
            position: relative;
            overflow: hidden;
        }

        /* 장식용 도트 패턴 배경 */
        .login-page::before {
            content: '';
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            background-image: radial-gradient(circle, var(--nb-black) 0.8px, transparent 0.8px);
            background-size: 24px 24px;
            opacity: 0.03;
            pointer-events: none;
            z-index: 0;
        }

        /* ===== 상단 헤더 ===== */
        .login-header {
            position: fixed;
            top: 0; left: 0; right: 0;
            height: 56px;
            background: var(--nb-cream);
            border-bottom: var(--nb-border);
            display: flex;
            align-items: center;
            padding: 0 16px;
            z-index: 100;
        }

        .login-back-button {
            width: 40px;
            height: 40px;
            border: var(--nb-border);
            border-radius: var(--nb-radius);
            background: #fff;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--nb-shadow-sm);
            transition: all var(--nb-transition);
            color: var(--nb-text);
        }

        .login-back-button:hover {
            box-shadow: var(--nb-shadow);
            transform: translate(-1px, -1px);
        }

        .login-back-button:active {
            box-shadow: none;
            transform: translate(2px, 2px);
        }

        .login-back-button:focus-visible {
            outline: 3px solid var(--nb-orange);
            outline-offset: 2px;
        }

        /* ===== 폼 컨테이너 ===== */
        .login-form-container {
            flex: 1;
            max-width: 440px;
            width: 100%;
            margin: 0 auto;
            padding: 96px 24px 40px;
            position: relative;
            z-index: 1;
        }

        /* ===== 타이틀 섹션 ===== */
        .login-title-section {
            margin-bottom: 36px;
        }

        .login-title {
            font-size: 32px;
            font-weight: 900;
            color: var(--nb-text);
            letter-spacing: -0.03em;
            margin-bottom: 8px;
        }

        .login-subtitle {
            font-size: 15px;
            font-weight: 500;
            color: var(--nb-text-sub);
            letter-spacing: -0.01em;
        }

        /* ===== 입력 필드 ===== */
        .login-inputs {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-bottom: 16px;
        }

        .input-group {
            position: relative;
        }

        .login-input {
            width: 100%;
            height: 52px;
            padding: 0 16px;
            font-family: inherit;
            font-size: 15px;
            font-weight: 500;
            color: var(--nb-text);
            background: #fff;
            border: var(--nb-border);
            border-radius: var(--nb-radius);
            box-shadow: var(--nb-shadow-sm);
            transition: all var(--nb-transition);
            outline: none;
        }

        .login-input::placeholder {
            color: var(--nb-text-muted);
            font-weight: 400;
        }

        .login-input:focus {
            border-color: var(--nb-orange);
            box-shadow: 3px 3px 0px var(--nb-orange);
        }

        .login-input:hover:not(:focus) {
            box-shadow: var(--nb-shadow);
            transform: translate(-1px, -1px);
        }

        .password-input-wrapper {
            position: relative;
        }

        .password-input-wrapper .login-input {
            padding-right: 52px;
        }

        .password-toggle {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            width: 32px;
            height: 32px;
            border: none;
            background: transparent;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--nb-text-muted);
            transition: color var(--nb-transition);
            border-radius: 4px;
        }

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

        .password-toggle:focus-visible {
            outline: 2px solid var(--nb-orange);
            outline-offset: 2px;
        }

        .password-toggle svg {
            width: 20px;
            height: 20px;
        }

        .hidden { display: none; }

        /* ===== 옵션 링크 (아이디찾기/비밀번호찾기) ===== */
        .login-options {
            display: flex;
            justify-content: space-between;
            margin-bottom: 28px;
        }

        .forgot-password-link {
            background: none;
            border: none;
            cursor: pointer;
            font-family: inherit;
            font-size: 13px;
            font-weight: 600;
            color: var(--nb-text-sub);
            padding: 4px 0;
            position: relative;
            transition: color var(--nb-transition);
        }

        .forgot-password-link::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--nb-orange);
            transition: width var(--nb-transition);
        }

        .forgot-password-link:hover {
            color: var(--nb-orange);
        }

        .forgot-password-link:hover::after {
            width: 100%;
        }

        .forgot-password-link:focus-visible {
            outline: 2px solid var(--nb-orange);
            outline-offset: 2px;
            border-radius: 2px;
        }

        /* ===== 로그인/회원가입 버튼 ===== */
        .login-buttons {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 32px;
        }

        .login-button {
            width: 100%;
            height: 54px;
            border: var(--nb-border-thick);
            border-radius: var(--nb-radius);
            font-family: inherit;
            font-size: 16px;
            font-weight: 800;
            cursor: pointer;
            transition: all var(--nb-transition);
            letter-spacing: -0.02em;
        }

        .login-button.primary {
            background: var(--nb-orange);
            color: #fff;
            box-shadow: var(--nb-shadow);
        }

        .login-button.primary:hover {
            box-shadow: var(--nb-shadow-hover);
            transform: translate(-2px, -2px);
        }

        .login-button.primary:active {
            box-shadow: var(--nb-shadow-sm);
            transform: translate(1px, 1px);
        }

        .signup-button {
            width: 100%;
            height: 54px;
            border: var(--nb-border-thick);
            border-radius: var(--nb-radius);
            font-family: inherit;
            font-size: 16px;
            font-weight: 800;
            cursor: pointer;
            transition: all var(--nb-transition);
            letter-spacing: -0.02em;
            background: #fff;
            color: var(--nb-text);
            box-shadow: var(--nb-shadow-sm);
        }

        .signup-button:hover {
            box-shadow: var(--nb-shadow);
            transform: translate(-1px, -1px);
            background: var(--nb-lime-bg);
        }

        .signup-button:active {
            box-shadow: none;
            transform: translate(2px, 2px);
        }

        .login-button:focus-visible,
        .signup-button:focus-visible {
            outline: 3px solid var(--nb-orange);
            outline-offset: 2px;
        }

        /* ===== 소셜 로그인 섹션 ===== */
        .social-login-section {
            margin-bottom: 24px;
        }

        .social-login-divider {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }

        .social-login-divider::before,
        .social-login-divider::after {
            content: '';
            flex: 1;
            height: 2px;
            background: var(--nb-black);
            opacity: 0.15;
        }

        .social-login-divider span {
            padding: 0 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--nb-text-muted);
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }

        .social-login-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
        }

        .social-button {
            width: 56px;
            height: 56px;
            border: var(--nb-border);
            border-radius: var(--nb-radius);
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            text-decoration: none;
            box-shadow: var(--nb-shadow-sm);
            transition: all var(--nb-transition);
        }

        .social-button:hover {
            box-shadow: var(--nb-shadow);
            transform: translate(-2px, -2px);
        }

        .social-button:active {
            box-shadow: none;
            transform: translate(2px, 2px);
        }

        .social-button:focus-visible {
            outline: 3px solid var(--nb-orange);
            outline-offset: 2px;
        }

        .social-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 15px;
        }

        .google-icon {
            background: #fff;
            border: 2px solid #4285F4;
            color: #4285F4;
        }

        /* ===== 블로그 버튼 ===== */
        .blog-button {
            width: 100%;
            height: 52px;
            border: var(--nb-border);
            border-radius: var(--nb-radius);
            background: var(--nb-lavender);
            color: var(--nb-text);
            font-family: inherit;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            box-shadow: var(--nb-shadow-sm);
            transition: all var(--nb-transition);
            letter-spacing: -0.01em;
        }

        .blog-button:hover {
            box-shadow: var(--nb-shadow);
            transform: translate(-1px, -1px);
        }

        .blog-button:active {
            box-shadow: none;
            transform: translate(2px, 2px);
        }

        .blog-button:focus-visible {
            outline: 3px solid var(--nb-orange);
            outline-offset: 2px;
        }

        .blog-button svg {
            flex-shrink: 0;
        }

        /* ===== 장식 스티커 ===== */
        .deco-sticker {
            position: absolute;
            border: var(--nb-border);
            border-radius: var(--nb-radius);
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 700;
            box-shadow: var(--nb-shadow-sm);
            pointer-events: none;
            z-index: 0;
        }

        .deco-sticker-1 {
            top: 72px;
            right: -20px;
            background: var(--nb-yellow);
            transform: rotate(3deg);
        }

        .deco-sticker-2 {
            bottom: 100px;
            left: -30px;
            background: var(--nb-lime);
            transform: rotate(-2deg);
        }

        /* ===== 반응형 ===== */
        @media (max-width: 480px) {
            .login-form-container {
                padding: 88px 20px 32px;
            }

            .login-title {
                font-size: 26px;
            }

            .login-button,
            .signup-button {
                height: 50px;
                font-size: 15px;
            }

            .login-input {
                height: 48px;
                font-size: 14px;
            }

            .deco-sticker { display: none; }
        }

        @media (max-width: 360px) {
            .login-form-container {
                padding: 84px 16px 24px;
            }

            .login-title {
                font-size: 24px;
            }
        }

        /* ===== 애니메이션 ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(16px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .login-title-section { animation: fadeInUp 0.5s ease-out both; }
        .login-inputs { animation: fadeInUp 0.5s ease-out 0.1s both; }
        .login-options { animation: fadeInUp 0.5s ease-out 0.15s both; }
        .login-buttons { animation: fadeInUp 0.5s ease-out 0.2s both; }
        .social-login-section { animation: fadeInUp 0.5s ease-out 0.25s both; }
        .blog-button-section { animation: fadeInUp 0.5s ease-out 0.3s both; }

        @media (prefers-reduced-motion: reduce) {
            .login-title-section,
            .login-inputs,
            .login-options,
            .login-buttons,
            .social-login-section,
            .blog-button-section {
                animation: none;
            }
        }