/* ========================================
   행복일기 디자인 시스템
   "나만의 아늑한 감정 공간"
   ========================================

   이 파일은 style.css 다음에 로드되어
   기존 :root 변수를 새 디자인 시스템 값으로 오버라이드합니다.
   ======================================== */

/* ========================================
   1. CSS Variables Override
   ======================================== */
:root {
    /* ── 배경색 - 따뜻한 베이지/크림 ── */
    --bg-primary: #FAF8F5;
    --bg-secondary: #F5F1EB;
    --bg-tertiary: #EDE8E0;

    /* ── 카드 배경 ── */
    --card-bg: #FFFFFF;
    --card-bg-hover: #FFFCF9;

    /* ── 메인 포인트 - 코랄/피치 ── */
    --primary: #F4A896;
    --primary-light: #FADAD2;
    --primary-dark: #E8907C;

    /* ── 서브 포인트 - 파스텔 팔레트 ── */
    --accent-mint: #A8D8C8;
    --accent-lavender: #C9B8E8;
    --accent-peach: #FFDAB3;
    --accent-sky: #B8D4E8;
    --accent-rose: #F2C4C4;
    --accent-lemon: #F7E8A4;

    /* ── 기능별 색상 ── */
    --gratitude: #A8D8C8;
    --hurt: #B8D4E8;
    --together: #F7E8A4;
    --reflection: #C9B8E8;
    --quiz: #FFDAB3;
    --empathy: #F2C4C4;

    /* ── 텍스트 색상 ── */
    --text-primary: #3D3632;
    --text-secondary: #7A736C;
    --text-tertiary: #A69E96;
    --text-inverse: #FFFFFF;

    /* ── 상태 색상 (부드러운 톤) ── */
    --success: #7BC89C;
    --warning: #F0C87A;
    --error: #E8A0A0;
    --info: #8BB8D0;

    /* ── 기존 변수 매핑 (하위 호환) ── */
    --sage-green: #F4A896;
    --sage-light: #FADAD2;
    --sage-dark: #E8907C;
    --cream: #FAF8F5;
    --cream-dark: #EDE8E0;
    --coral: #F4A896;
    --coral-light: #FADAD2;
    --charcoal: #3D3632;
    --gray: #7A736C;
    --light-gray: #A69E96;
    --white: #FAF8F5;

    /* ── Legacy 변수 매핑 ── */
    --color-primary: var(--primary);
    --color-primary-light: var(--primary-light);
    --color-primary-dark: var(--primary-dark);
    --color-secondary: var(--primary);
    --color-success: var(--success);
    --color-warning: var(--warning);
    --color-danger: var(--error);
    --color-gray-50: #FFFCF9;
    --color-gray-100: var(--bg-secondary);
    --color-gray-200: var(--bg-tertiary);
    --color-gray-300: #D1C9C0;
    --color-gray-400: var(--text-tertiary);
    --color-gray-500: var(--text-secondary);
    --color-gray-600: #5A534D;
    --color-gray-700: var(--text-primary);
    --color-gray-800: #2A2522;
    --color-gray-900: #1A1816;

    /* ── 폰트 ── */
    --font-family: 'Pretendard', 'Apple SD Gothic Neo', 'Noto Sans KR', sans-serif;
    --font-serif: 'Gowun Batang', serif;
    --font-sans: 'Pretendard', -apple-system, 'Apple SD Gothic Neo', 'Noto Sans KR', sans-serif;

    /* ── 폰트 크기 ── */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;

    /* ── 폰트 굵기 ── */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /* ── 줄 높이 ── */
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.75;

    /* ── 간격 시스템 ── */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* Legacy 간격 매핑 */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;

    /* ── 둥근 모서리 ── */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;

    /* ── 그림자 - 따뜻한 톤 ── */
    --shadow-sm: 0 1px 2px rgba(61, 54, 50, 0.04);
    --shadow-md: 0 4px 12px rgba(61, 54, 50, 0.06);
    --shadow-lg: 0 8px 24px rgba(61, 54, 50, 0.08);
    --shadow-xl: 0 16px 48px rgba(61, 54, 50, 0.10);
    --shadow-card: 0 2px 8px rgba(61, 54, 50, 0.04), 0 4px 16px rgba(61, 54, 50, 0.04);
    --shadow-hover: 0 8px 24px rgba(61, 54, 50, 0.08), 0 2px 8px rgba(61, 54, 50, 0.04);

    /* ── 트랜지션 ── */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.2s ease;
    --transition-slow: 0.3s ease;

    /* ── 다크모드 원본값 (참조용) ── */
    --bg-primary-dark: #1A1816;
    --bg-secondary-dark: #242220;
    --bg-tertiary-dark: #2D2A27;
    --card-bg-dark: #343130;
    --text-primary-dark: #F5F1EB;
    --text-secondary-dark: #A69E96;
}


/* ========================================
   2. Base Reset & Typography Override
   ======================================== */

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: var(--leading-normal);
}

/* 배경 장식: 따뜻한 코랄 톤으로 변경 */
body::before {
    background: radial-gradient(circle, rgba(244, 168, 150, 0.06) 0%, transparent 70%);
}

body::after {
    background: radial-gradient(circle, rgba(168, 216, 200, 0.05) 0%, transparent 70%);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
}

a {
    color: var(--primary);
}

a:hover {
    color: var(--primary-dark);
}


/* ========================================
   3. Navigation Override
   ======================================== */
.navbar {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-sm);
}

.nav-logo {
    color: var(--primary-dark);
}

.nav-dropdown-toggle:hover,
.nav-single-link:hover {
    color: var(--primary);
}

.nav-toggle span {
    background: var(--text-primary);
}


/* ========================================
   4. Card Override
   ======================================== */
.diary-card,
.card,
.stat-card,
.feature-card,
.auth-card {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(61, 54, 50, 0.04);
}

.diary-card:hover,
.card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}


/* ========================================
   5. Button Override
   ======================================== */
.btn,
button[type="submit"],
.auth-btn {
    border-radius: var(--radius-md);
    font-weight: var(--font-medium);
    transition: all var(--transition-normal);
}

.btn-primary,
.auth-btn {
    background: var(--primary);
    color: var(--text-inverse);
    border: none;
}

.btn-primary:hover,
.auth-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--bg-tertiary);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
}

.btn-outline {
    border-color: var(--primary);
    color: var(--primary);
    background: transparent;
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--text-inverse);
}


/* ========================================
   6. Input Override
   ======================================== */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="search"],
input[type="tel"],
select,
textarea,
.form-control {
    border: 1px solid var(--bg-tertiary);
    border-radius: var(--radius-md);
    background: var(--card-bg);
    color: var(--text-primary);
    transition: all var(--transition-normal);
}

input:focus,
select:focus,
textarea:focus,
.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

input::placeholder,
textarea::placeholder {
    color: var(--text-tertiary);
}


/* ========================================
   7. Flash Message Override
   ======================================== */
.flash {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.flash-success { border-left: 4px solid var(--success); }
.flash-error { border-left: 4px solid var(--error); }
.flash-warning { border-left: 4px solid var(--warning); }
.flash-info { border-left: 4px solid var(--info); }


/* ========================================
   8. Footer Override
   ======================================== */
.footer {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-top: 1px solid rgba(61, 54, 50, 0.06);
}


/* ========================================
   9. Emotion/Need Cards Override
   ======================================== */
.emotion-card,
.need-card {
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
    border: 2px solid transparent;
    transition: all var(--transition-normal);
}

.emotion-card:hover,
.need-card:hover {
    background: var(--card-bg);
    transform: scale(1.05);
}

.emotion-card.selected,
.need-card.selected {
    border-color: var(--primary);
    background: var(--primary-light);
}


/* ========================================
   10. Auth Pages Override
   ======================================== */
.auth-container {
    background: var(--bg-primary);
}

.auth-card {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}


/* ========================================
   11. Animation Utilities
   ======================================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.animate-fadeIn {
    animation: fadeIn 0.3s ease;
}

.animate-slideUp {
    animation: slideUp 0.4s ease;
}

.animate-scaleIn {
    animation: scaleIn 0.3s ease;
}

/* 리스트 아이템 순차 애니메이션 */
.list-item {
    animation: slideUp 0.4s ease backwards;
}
.list-item:nth-child(1) { animation-delay: 0.05s; }
.list-item:nth-child(2) { animation-delay: 0.1s; }
.list-item:nth-child(3) { animation-delay: 0.15s; }
.list-item:nth-child(4) { animation-delay: 0.2s; }
.list-item:nth-child(5) { animation-delay: 0.25s; }


/* ========================================
   12. Dark Mode Override (따뜻한 다크)
   ======================================== */
html.dark-mode {
    --bg-primary: #1A1816;
    --bg-secondary: #242220;
    --bg-tertiary: #2D2A27;
    --card-bg: #343130;
    --card-bg-hover: #3D3A37;
    --text-primary: #F5F1EB;
    --text-secondary: #A69E96;
    --text-tertiary: #7A736C;

    /* 포인트 색상 (다크모드에서 약간 밝게) */
    --primary: #F4A896;
    --primary-light: rgba(244, 168, 150, 0.2);
    --primary-dark: #FADAD2;

    /* 기존 변수 매핑 */
    --sage-green: #F4A896;
    --sage-light: rgba(244, 168, 150, 0.2);
    --sage-dark: #FADAD2;
    --cream: #1A1816;
    --cream-dark: #242220;
    --coral: #F4A896;
    --coral-light: #FADAD2;
    --charcoal: #F5F1EB;
    --gray: #A69E96;
    --light-gray: #7A736C;
    --white: #1A1816;

    /* 기능별 색상 (다크모드) */
    --gratitude: #7ABFA5;
    --hurt: #8FBDD6;
    --together: #D6C97A;
    --reflection: #A896D0;
    --quiz: #E0B87A;
    --empathy: #D6A0A0;

    /* 그림자 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.3);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.3);

    /* Legacy */
    --color-gray-50: #2D2A27;
    --color-gray-100: #242220;
    --color-gray-200: #2D2A27;
    --color-gray-700: #F5F1EB;
    --color-gray-800: #F5F1EB;
    --color-white: #1A1816;
}

body.dark-mode,
html.dark-mode body {
    --bg-color: #1A1816;
    --bg-secondary: #242220;
    --text-color: #F5F1EB;
    --text-secondary: #A69E96;
    --border-color: #3D3A37;
    --primary-color: #F4A896;
    --primary-dark: #FADAD2;
    --card-bg: #343130;
    --input-bg: #2D2A27;
    background: var(--bg-primary);
}

html.dark-mode body::before {
    background: radial-gradient(circle, rgba(244, 168, 150, 0.03) 0%, transparent 70%);
}

html.dark-mode body::after {
    background: radial-gradient(circle, rgba(168, 216, 200, 0.02) 0%, transparent 70%);
}