/* =====================================================================
   FocusMate — style.css
   Pretendard 폰트 기반 / 라이트·다크 모드 완전 지원
   ===================================================================== */

/* ── CSS 변수 (라이트 모드 기본값) ──────────────────────────────────── */
:root {
    --primary:        #009460;
    --primary-dark:   #007a50;
    --primary-light:  rgba(0, 148, 96, 0.08);

    --bg:             #f1f5f9;
    --white:          #ffffff;
    --border:         #e2e8f0;

    --text-main:      #0f172a;
    --text-sub:       #64748b;

    --header-bg:      rgba(255, 255, 255, 0.85);
    --shadow-sm:      0 1px 3px rgba(0,0,0,0.08);
    --shadow-md:      0 4px 16px rgba(0,0,0,0.10);
    --shadow-lg:      0 10px 32px rgba(0,0,0,0.12);

    --radius-sm:      8px;
    --radius-md:      14px;
    --radius-lg:      20px;

    --transition:     0.2s ease;
}

/* ── 다크 모드 변수 ──────────────────────────────────────────────────── */
[data-theme="dark"] {
    --primary:        #00c97a;
    --primary-dark:   #00a865;
    --primary-light:  rgba(0, 201, 122, 0.10);

    --bg:             #0d1117;
    --white:          #161b22;
    --border:         #30363d;

    --text-main:      #e6edf3;
    --text-sub:       #8b949e;

    --header-bg:      rgba(22, 27, 34, 0.90);
    --shadow-sm:      0 1px 3px rgba(0,0,0,0.30);
    --shadow-md:      0 4px 16px rgba(0,0,0,0.40);
    --shadow-lg:      0 10px 32px rgba(0,0,0,0.50);
}

/* ── 기본 리셋 & 베이스 ──────────────────────────────────────────────── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    transition: background var(--transition), color var(--transition);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition), opacity var(--transition);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
}

input, textarea, select {
    font-family: inherit;
}

/* ── 헤더 ────────────────────────────────────────────────────────────── */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    height: 64px;
    background: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition), border-color var(--transition);
}

.logo {
    font-size: 1.35rem;
    font-weight: 900;
    color: var(--primary);
    letter-spacing: -0.5px;
}

header nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

header nav a {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-sub);
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
}

header nav a:hover {
    color: var(--primary);
    background: var(--primary-light);
}

/* 테마 토글 버튼 */
.theme-toggle-btn {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition), border-color var(--transition), transform 0.2s;
}

.theme-toggle-btn:hover {
    transform: rotate(20deg);
    background: var(--primary-light);
}

/* ── 메인 컨테이너 ────────────────────────────────────────────────────── */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 100px 24px 60px;
}

/* ── 카드 ────────────────────────────────────────────────────────────── */
.card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    transition: background var(--transition), border-color var(--transition),
                box-shadow var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

/* ── 버튼 ────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: opacity var(--transition), transform var(--transition),
                box-shadow var(--transition);
    border: none;
    text-decoration: none;
}

.btn:hover {
    opacity: 0.88;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
    opacity: 1;
}

.btn-primary {
    background: var(--primary);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--primary-dark);
    opacity: 1;
}

/* ── 입력 폼 ─────────────────────────────────────────────────────────── */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 18px;
}

.input-group label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-sub);
}

.input-group input,
.input-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    color: var(--text-main);
    font-size: 0.95rem;
    transition: border-color var(--transition), background var(--transition);
}

.input-group input:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
}

.input-group input::placeholder,
.input-group textarea::placeholder {
    color: var(--text-sub);
    opacity: 0.7;
}

/* ── 인증 페이지 (로그인 / 회원가입) ────────────────────────────────── */
#login,
#create-group {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 64px);
}

.auth-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    max-width: 780px;
    width: 100%;
    padding: 48px;
}

.auth-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.auth-info h2 {
    font-size: 2rem;
    font-weight: 900;
    line-height: 1.25;
    margin-bottom: 14px;
    color: var(--text-main);
}

.auth-card form {
    display: flex;
    flex-direction: column;
}

.auth-card form .btn {
    width: 100%;
    margin-top: 4px;
}

@media (max-width: 620px) {
    .auth-card {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 28px;
    }
}

/* ── 홈 히어로 ───────────────────────────────────────────────────────── */
#home-hero {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 64px);
}

#home-hero .card {
    max-width: 800px;
    width: 100%;
}

#home-hero h1 {
    background: linear-gradient(135deg, var(--text-main) 40%, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ── 집중분석 페이지 ─────────────────────────────────────────────────── */
#control h2 {
    font-size: 1.6rem;
    font-weight: 800;
}

.camera-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 24px;
    align-items: start;
}

.camera-view {
    background: #0d1117;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    min-height: 380px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-sub);
    font-weight: 600;
    overflow: hidden;
    transition: border-color var(--transition);
}

.control-panel {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.control-panel .btn {
    width: 100%;
}

.log-box {
    background: #0d1117;
    color: #94a3b8;
    border: 1px solid #30363d;
    border-radius: var(--radius-sm);
    padding: 16px;
    font-size: 0.82rem;
    font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    line-height: 1.6;
    min-height: 120px;
    white-space: pre-wrap;
    word-break: break-all;
}

@media (max-width: 768px) {
    .camera-grid {
        grid-template-columns: 1fr;
    }
}

/* ── 랭킹 페이지 ─────────────────────────────────────────────────────── */
#rank {
    padding-top: 20px;
}

.my-stats-banner {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #ffffff;
    border-radius: var(--radius-lg);
    padding: 28px 36px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
    box-shadow: 0 8px 24px rgba(0, 148, 96, 0.30);
}

.rank-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.rank-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 16px;
    font-size: 0.9rem;
}

.rank-table th {
    text-align: left;
    padding: 10px 14px;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-sub);
    border-bottom: 1px solid var(--border);
}

.rank-table td {
    padding: 13px 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text-main);
    font-weight: 500;
}

.rank-table tbody tr:last-child td {
    border-bottom: none;
}

.rank-table tbody tr:hover td {
    background: var(--primary-light);
}

@media (max-width: 768px) {
    .rank-grid {
        grid-template-columns: 1fr;
    }
}

/* ── 리포트 페이지 ───────────────────────────────────────────────────── */
.report-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 16px;
}

.report-header h2 {
    font-size: 1.6rem;
    font-weight: 800;
}

.date-badge {
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.82rem;
    font-weight: 700;
    padding: 8px 16px;
    border-radius: 99px;
    white-space: nowrap;
    border: 1px solid rgba(0, 148, 96, 0.20);
}

.report-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.chart-container {
    position: relative;
    height: 220px;
    margin-top: 16px;
}

@media (max-width: 768px) {
    .report-grid {
        grid-template-columns: 1fr;
    }
}

/* ── 모달 ────────────────────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay.hidden {
    display: none;
}

.modal-box {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.modal-box h2 {
    font-size: 1.3rem;
    font-weight: 800;
}

.modal-box p {
    color: var(--text-sub);
    font-size: 0.9rem;
}

.modal-box input {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    color: var(--text-main);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color var(--transition);
}

.modal-box input:focus {
    outline: none;
    border-color: var(--primary);
}

.modal-error {
    color: #ef4444;
    font-size: 0.82rem;
    font-weight: 600;
    display: none;
    margin-top: -6px;
}

.modal-buttons {
    display: flex;
    gap: 10px;
    margin-top: 4px;
}

.cancel-btn {
    flex: 1;
    padding: 12px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 700;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text-sub);
    transition: background var(--transition);
}

.cancel-btn:hover {
    background: var(--border);
}

.join-btn {
    flex: 1;
    padding: 12px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 700;
    background: var(--primary);
    color: #ffffff;
    transition: background var(--transition);
}

.join-btn:hover {
    background: var(--primary-dark);
}

/* ── 닉네임 드롭다운 ─────────────────────────────────────────────────── */
.user-menu-container {
    position: relative;
    margin-left: 8px;
}

.user-menu-trigger {
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    color: var(--text-main);
    cursor: pointer;
    user-select: none;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
}

.user-menu-trigger:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.user-dropdown-box {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: 230px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px;
    box-shadow: var(--shadow-lg);
    z-index: 1200;
    flex-direction: column;
    gap: 4px;
}

.user-dropdown-box.show {
    display: flex;
}

.user-info-summary {
    padding-bottom: 8px;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.user-info-name {
    font-weight: 800;
    font-size: 1rem;
    color: var(--text-main);
}

.user-info-email {
    font-size: 0.75rem;
    color: var(--text-sub);
    margin-bottom: 6px;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 10px;
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: background var(--transition), color var(--transition);
}

.dropdown-item:hover {
    background: var(--bg);
    color: var(--primary);
}

.dropdown-item.danger {
    color: #ef4444;
    font-weight: 700;
}

.dropdown-item.danger:hover {
    background: rgba(239, 68, 68, 0.08);
    color: #ef4444;
}

.dropdown-divider {
    height: 1px;
    background: var(--border);
    margin: 6px 0;
}

/* ── 스크롤 reveal 애니메이션 ────────────────────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ── 스크롤바 커스텀 ─────────────────────────────────────────────────── */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 99px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-sub);
}

/* ── 선택 영역 색상 ──────────────────────────────────────────────────── */
::selection {
    background: var(--primary-light);
    color: var(--primary);
}