/**
 * Diplomacy Mastery Pro — Frontend CSS v3.0
 * Professional white/light theme with elegant accents
 */

:root {
    --dm-primary: #2563eb;
    --dm-primary-light: #dbeafe;
    --dm-success: #16a34a;
    --dm-success-light: #dcfce7;
    --dm-warning: #ea580c;
    --dm-warning-light: #fff7ed;
    --dm-accent: #8b5cf6;
    --dm-accent-light: #ede9fe;
    --dm-text: #1e293b;
    --dm-text-muted: #64748b;
    --dm-bg: #ffffff;
    --dm-bg-soft: #f8fafc;
    --dm-border: #e2e8f0;
    --dm-radius: 12px;
    --dm-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --dm-shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --dm-font: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

/* ===== BASE ===== */
.dm-frontend-wrap { max-width: 1100px; margin: 0 auto; padding: 24px 16px; font-family: var(--dm-font); color: var(--dm-text); line-height: 1.6; }
.dm-frontend-wrap h2 { font-size: 28px; font-weight: 800; color: var(--dm-text); margin-bottom: 8px; letter-spacing: -0.5px; }
.dm-frontend-wrap h3 { font-size: 20px; font-weight: 700; margin: 28px 0 16px; color: var(--dm-text); }
.dm-frontend-wrap p { color: var(--dm-text-muted); }

/* ===== WELCOME HEADER ===== */
.dm-welcome-header { background: linear-gradient(135deg, var(--dm-primary), var(--dm-accent)); border-radius: var(--dm-radius); padding: 28px 32px; color: #fff; margin-bottom: 28px; }
.dm-welcome-header h2 { color: #fff; margin: 0 0 4px; font-size: 26px; }
.dm-welcome-header p { color: rgba(255,255,255,0.85); margin: 0; }
.dm-welcome-stats { display: flex; gap: 24px; margin-top: 16px; flex-wrap: wrap; }
.dm-welcome-stat { background: rgba(255,255,255,0.15); padding: 10px 18px; border-radius: 8px; backdrop-filter: blur(4px); }
.dm-welcome-stat strong { display: block; font-size: 22px; }
.dm-welcome-stat small { font-size: 12px; opacity: 0.85; }

/* ===== DAILY CHALLENGE ===== */
.dm-daily-challenge { background: linear-gradient(135deg, #fef3c7, #fde68a); border: 2px solid #f59e0b; border-radius: var(--dm-radius); padding: 20px 24px; margin-bottom: 24px; display: flex; align-items: center; gap: 16px; }
.dm-daily-icon { font-size: 40px; }
.dm-daily-info h4 { margin: 0 0 4px; font-size: 16px; color: #92400e; font-weight: 700; }
.dm-daily-info p { margin: 0; font-size: 14px; color: #a16207; }
.dm-daily-info .dm-daily-bonus { background: #f59e0b; color: #fff; padding: 2px 10px; border-radius: 20px; font-size: 12px; font-weight: 700; display: inline-block; margin-top: 6px; }
.dm-daily-challenge .dm-btn { margin-left: auto; flex-shrink: 0; }
.dm-daily-label { background: linear-gradient(135deg, #f59e0b, #d97706); color: #fff; display: inline-block; padding: 4px 14px; border-radius: 20px; font-size: 12px; font-weight: 700; margin-bottom: 12px; }

/* ===== STREAK BAR ===== */
.dm-streak-bar { display: flex; gap: 16px; align-items: center; background: var(--dm-bg); border: 1px solid var(--dm-border); border-radius: var(--dm-radius); padding: 14px 20px; margin-bottom: 20px; }
.dm-streak-fire { font-size: 28px; }
.dm-streak-info strong { font-size: 18px; color: var(--dm-warning); }
.dm-streak-badges { margin-left: auto; display: flex; gap: 6px; }
.dm-badge-mini { font-size: 20px; cursor: help; }

/* ===== NOTICES ===== */
.dm-notice { padding: 14px 18px; border-radius: 8px; margin-bottom: 20px; border-left: 4px solid var(--dm-primary); background: var(--dm-primary-light); font-size: 14px; }
.dm-notice-warning { background: var(--dm-warning-light); border-left-color: var(--dm-warning); }
.dm-notice-error { background: #fef2f2; border-left-color: #dc2626; }

/* ===== BUTTONS ===== */
.dm-btn { display: inline-flex; align-items: center; gap: 6px; padding: 10px 22px; border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer; border: none; transition: all 0.2s; text-decoration: none; font-family: var(--dm-font); }
.dm-btn-primary { background: var(--dm-primary); color: #fff; box-shadow: 0 1px 3px rgba(37,99,235,0.3); }
.dm-btn-primary:hover { background: #1d4ed8; color: #fff; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(37,99,235,0.3); }
.dm-btn-secondary { background: #f1f5f9; color: var(--dm-text); }
.dm-btn-outline { background: transparent; border: 2px solid var(--dm-primary); color: var(--dm-primary); }
.dm-btn-outline:hover { background: var(--dm-primary); color: #fff; }
.dm-btn-spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid rgba(255,255,255,0.3); border-top-color: #fff; border-radius: 50%; animation: dm-spin 0.6s linear infinite; }

/* ===== TAB NAVIGATION ===== */
.dm-tab-nav { display: flex; gap: 4px; border-bottom: 2px solid var(--dm-border); margin-bottom: 24px; overflow-x: auto; }
.dm-tab-link { padding: 10px 20px; font-size: 14px; font-weight: 600; color: var(--dm-text-muted); text-decoration: none; border-bottom: 2px solid transparent; margin-bottom: -2px; transition: all 0.2s; white-space: nowrap; cursor: pointer; }
.dm-tab-link:hover { color: var(--dm-primary); }
.dm-tab-link.active { color: var(--dm-primary); border-bottom-color: var(--dm-primary); }
.dm-tab-panel { display: none; }
.dm-tab-panel.active { display: block; animation: dm-fadeIn 0.3s; }

/* ===== DOMAIN GRID ===== */
.dm-domain-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; margin: 20px 0; }
.dm-domain-card { background: var(--dm-bg); border: 2px solid var(--dm-border); border-radius: var(--dm-radius); padding: 20px 14px; text-align: center; text-decoration: none; color: var(--dm-text); transition: all 0.25s cubic-bezier(0.4,0,0.2,1); cursor: pointer; }
.dm-domain-card:hover { border-color: var(--dm-primary); box-shadow: var(--dm-shadow-md); transform: translateY(-3px); }
.dm-domain-card.active { border-color: var(--dm-primary); background: var(--dm-primary-light); }
.dm-domain-icon { display: block; font-size: 36px; margin-bottom: 8px; }
.dm-domain-label { display: block; font-weight: 700; font-size: 13px; color: var(--dm-text); }
.dm-domain-count { display: block; font-size: 11px; color: var(--dm-text-muted); margin-top: 4px; }

/* ===== FILTER BAR ===== */
.dm-filter-bar { display: flex; gap: 8px; margin: 16px 0 24px; flex-wrap: wrap; }
.dm-filter-btn { padding: 6px 18px; border-radius: 24px; border: 1px solid var(--dm-border); background: var(--dm-bg); font-size: 13px; font-weight: 500; text-decoration: none; color: var(--dm-text-muted); transition: all 0.2s; font-family: var(--dm-font); }
.dm-filter-btn.active, .dm-filter-btn:hover { background: var(--dm-primary); color: #fff; border-color: var(--dm-primary); }

/* ===== SCENARIO CARDS ===== */
.dm-scenario-list { display: grid; gap: 14px; }
.dm-scenario-card { background: var(--dm-bg); border: 1px solid var(--dm-border); border-radius: var(--dm-radius); padding: 20px; transition: all 0.2s; }
.dm-scenario-card:hover { box-shadow: var(--dm-shadow-md); border-color: #cbd5e1; }
.dm-scenario-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; gap: 12px; }
.dm-scenario-header h4 { margin: 0; font-size: 16px; font-weight: 700; color: var(--dm-text); }
.dm-scenario-preview { color: var(--dm-text-muted); font-size: 14px; line-height: 1.6; margin-bottom: 12px; }
.dm-scenario-meta { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.dm-format-tag { background: var(--dm-success-light); color: var(--dm-success); padding: 3px 12px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.dm-domain-tag { background: var(--dm-accent-light); color: var(--dm-accent); padding: 3px 12px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.dm-attempted { font-size: 12px; color: var(--dm-success); font-weight: 500; }
.dm-source-tag { font-size: 10px; color: var(--dm-text-muted); background: #f1f5f9; padding: 2px 8px; border-radius: 10px; }

/* ===== DIFFICULTY BADGES ===== */
.dm-difficulty-badge { display: inline-block; padding: 3px 14px; border-radius: 20px; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }
.dm-diff-beginner { background: #dcfce7; color: #166534; }
.dm-diff-intermediate { background: #fff7ed; color: #c2410c; }
.dm-diff-advanced { background: #fce4ec; color: #b91c1c; }
.dm-diff-expert { background: #ede9fe; color: #6d28d9; }

/* ===== MODAL ===== */
.dm-modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(15,23,42,0.6); backdrop-filter: blur(4px); z-index: 99999; display: flex; align-items: center; justify-content: center; }
.dm-modal-content { background: var(--dm-bg); border-radius: 16px; padding: 32px; width: 92%; max-width: 860px; max-height: 90vh; overflow-y: auto; position: relative; box-shadow: 0 20px 60px rgba(0,0,0,0.2); animation: dm-slideUp 0.3s; }
.dm-modal-close { position: absolute; top: 16px; right: 20px; font-size: 28px; cursor: pointer; color: #94a3b8; line-height: 1; transition: color 0.2s; z-index: 1; }
.dm-modal-close:hover { color: var(--dm-text); }

/* ===== SCENARIO DISPLAY ===== */
.dm-scenario-display { margin-bottom: 24px; }
.dm-scenario-badge-row { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.dm-scenario-display h2 { font-size: 22px; margin: 0 0 14px; }
.dm-scenario-text { background: var(--dm-bg-soft); border: 1px solid var(--dm-border); border-radius: 10px; padding: 20px; line-height: 1.8; font-size: 15px; white-space: pre-wrap; color: var(--dm-text); }

/* ===== RESPONSE AREA ===== */
.dm-format-hint { background: var(--dm-primary-light); border-left: 3px solid var(--dm-primary); padding: 12px 16px; margin-bottom: 14px; font-size: 14px; border-radius: 0 8px 8px 0; }
#dm-user-response { width: 100%; min-height: 200px; padding: 16px; border: 2px solid var(--dm-border); border-radius: 10px; font-size: 15px; line-height: 1.7; resize: vertical; font-family: var(--dm-font); color: var(--dm-text); background: var(--dm-bg); transition: border-color 0.2s; box-sizing: border-box; }
#dm-user-response:focus { border-color: var(--dm-primary); outline: none; box-shadow: 0 0 0 3px rgba(37,99,235,0.12); }
.dm-submit-row { display: flex; justify-content: space-between; align-items: center; margin-top: 14px; }
#dm-timer { font-size: 16px; color: var(--dm-text-muted); font-weight: 600; font-variant-numeric: tabular-nums; }

/* ===== LOADING ===== */
.dm-spinner { width: 40px; height: 40px; border: 3px solid var(--dm-border); border-top-color: var(--dm-primary); border-radius: 50%; animation: dm-spin 0.7s linear infinite; margin: 20px auto; }
#dm-loading { text-align: center; padding: 40px 20px; }
#dm-loading p { font-size: 16px; color: var(--dm-text-muted); margin-top: 12px; }
.dm-loading-inline { text-align: center; padding: 40px; }

/* ===== EVALUATION RESULTS ===== */
.dm-eval-wrap { padding: 10px 0; }
.dm-animate-in { animation: dm-fadeIn 0.5s; }

.dm-eval-xp-banner { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.dm-xp-badge { background: linear-gradient(135deg, #f59e0b, #d97706); color: #fff; padding: 4px 14px; border-radius: 20px; font-size: 13px; font-weight: 700; animation: dm-pop 0.5s; }
.dm-streak-badge { background: linear-gradient(135deg, #ef4444, #dc2626); color: #fff; padding: 4px 14px; border-radius: 20px; font-size: 13px; font-weight: 700; }
.dm-first-badge { background: linear-gradient(135deg, var(--dm-accent), #7c3aed); color: #fff; padding: 4px 14px; border-radius: 20px; font-size: 13px; font-weight: 700; }
.dm-best-badge { background: linear-gradient(135deg, var(--dm-success), #15803d); color: #fff; padding: 4px 14px; border-radius: 20px; font-size: 13px; font-weight: 700; }
.dm-challenge-badge { background: linear-gradient(135deg, #f59e0b, #b45309); color: #fff; padding: 4px 14px; border-radius: 20px; font-size: 13px; font-weight: 700; }

.dm-eval-header { display: flex; align-items: center; gap: 24px; margin-bottom: 28px; padding: 24px; background: var(--dm-bg-soft); border-radius: var(--dm-radius); border: 1px solid var(--dm-border); }
.dm-score-circle { width: 100px; height: 100px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; position: relative; }
.dm-score-ring { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
.dm-ring-anim { animation: dm-ringGrow 1s ease-out forwards; }
.dm-score-num { font-size: 26px; font-weight: 800; color: #fff; position: relative; z-index: 1; }
.dm-score-num small { font-size: 14px; font-weight: 600; }
.dm-score-high { background: linear-gradient(135deg, #16a34a, #22c55e); }
.dm-score-mid { background: linear-gradient(135deg, #ea580c, #f97316); }
.dm-score-low { background: linear-gradient(135deg, #dc2626, #ef4444); }
.dm-score-info h3 { margin: 0 0 6px; font-size: 24px; font-weight: 800; }
.dm-principle-tag { font-size: 13px; color: var(--dm-success); margin: 4px 0 0; }
.dm-principle-missed { font-size: 13px; color: var(--dm-warning); margin: 2px 0 0; }

/* ===== DIMENSION BARS + RADAR ===== */
.dm-eval-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 24px; }
.dm-dimensions { }
.dm-dimensions h4, .dm-radar-wrap h4 { margin: 0 0 14px; font-size: 15px; font-weight: 700; }
.dm-dim-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.dm-dim-label { width: 130px; font-size: 12px; font-weight: 600; color: var(--dm-text-muted); flex-shrink: 0; }
.dm-dim-bar-wrap { flex-grow: 1; height: 12px; background: #f1f5f9; border-radius: 6px; overflow: hidden; }
.dm-dim-bar { height: 100%; border-radius: 6px; transition: width 0.8s cubic-bezier(0.4,0,0.2,1); }
.dm-dim-bar.dm-score-high { background: linear-gradient(90deg, #16a34a, #22c55e); }
.dm-dim-bar.dm-score-mid { background: linear-gradient(90deg, #ea580c, #f97316); }
.dm-dim-bar.dm-score-low { background: linear-gradient(90deg, #dc2626, #ef4444); }
.dm-dim-score { width: 32px; text-align: right; font-size: 13px; font-weight: 700; color: var(--dm-text); flex-shrink: 0; }

/* Radar Chart */
.dm-radar-wrap { display: flex; flex-direction: column; align-items: center; }
.dm-radar-svg { width: 100%; max-width: 240px; }
.dm-radar-poly { animation: dm-fadeIn 0.8s; }

/* ===== EVAL SECTIONS ===== */
.dm-eval-section { margin-bottom: 20px; }
.dm-eval-section h4 { margin: 0 0 10px; font-size: 15px; font-weight: 700; }
.dm-eval-section ul { margin: 0; padding: 0; list-style: none; }
.dm-eval-section li { padding: 6px 0 6px 20px; font-size: 14px; position: relative; }
.dm-eval-section li::before { content: ''; position: absolute; left: 0; top: 12px; width: 8px; height: 8px; border-radius: 50%; }
.dm-strengths li::before { background: var(--dm-success); }
.dm-improvements li::before { background: var(--dm-warning); }
.dm-feedback-text { font-size: 14px; line-height: 1.8; color: var(--dm-text); }

.dm-expert-tip { display: flex; gap: 14px; background: #fffbeb; border: 1px solid #fde68a; border-radius: var(--dm-radius); padding: 16px 20px; margin: 18px 0; }
.dm-tip-icon { font-size: 28px; flex-shrink: 0; }
.dm-expert-tip strong { font-size: 14px; color: #92400e; }
.dm-expert-tip p { font-size: 14px; color: #a16207; margin: 4px 0 0; }

.dm-peer-compare { background: var(--dm-primary-light); border: 1px solid #bfdbfe; border-radius: var(--dm-radius); padding: 18px 22px; margin: 18px 0; }
.dm-peer-compare h4 { margin: 0 0 12px; }
.dm-peer-visual { margin-bottom: 8px; }
.dm-peer-bar-bg { height: 18px; background: #e2e8f0; border-radius: 10px; position: relative; overflow: visible; margin-bottom: 16px; }
.dm-peer-bar-fill { height: 100%; background: linear-gradient(90deg, var(--dm-primary), var(--dm-accent)); border-radius: 10px; transition: width 1s; }
.dm-peer-marker { position: absolute; top: -8px; transform: translateX(-50%); }
.dm-peer-marker span { background: var(--dm-primary); color: #fff; padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 700; white-space: nowrap; }
.dm-peer-compare p { font-size: 13px; color: #1e40af; margin: 0; }

.dm-eval-actions { text-align: center; margin-top: 24px; }

/* ===== COURSE GRID ===== */
.dm-course-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; margin-bottom: 24px; }
.dm-course-card { background: var(--dm-bg); border: 1px solid var(--dm-border); border-radius: var(--dm-radius); padding: 22px; transition: all 0.2s; }
.dm-course-card:hover { box-shadow: var(--dm-shadow-md); }
.dm-course-card.dm-enrolled { border-left: 4px solid var(--dm-primary); }
.dm-course-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.dm-course-header h4 { margin: 0; font-size: 17px; font-weight: 700; }
.dm-course-meta { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13px; color: var(--dm-text-muted); margin: 10px 0; }
.dm-progress-bar-wrap { height: 8px; background: #f1f5f9; border-radius: 4px; overflow: hidden; margin: 10px 0 6px; }
.dm-progress-bar { height: 100%; background: linear-gradient(90deg, var(--dm-primary), var(--dm-success)); border-radius: 4px; transition: width 0.6s; }
.dm-progress-text { font-size: 13px; color: var(--dm-text-muted); }
.dm-enrollment-status { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }
.dm-status-enrolled { color: var(--dm-primary); }
.dm-status-in_progress { color: var(--dm-warning); }
.dm-status-completed { color: var(--dm-success); }
.dm-completed-badge { color: var(--dm-success); font-weight: 700; }

/* ===== STATS ROW ===== */
.dm-stats-row { display: flex; gap: 16px; margin: 20px 0; flex-wrap: wrap; }
.dm-stat-mini { background: var(--dm-bg); border: 1px solid var(--dm-border); border-radius: var(--dm-radius); padding: 18px 24px; text-align: center; min-width: 130px; flex: 1; }
.dm-stat-mini strong { display: block; font-size: 28px; font-weight: 800; color: var(--dm-primary); }
.dm-stat-mini span { font-size: 12px; color: var(--dm-text-muted); font-weight: 500; }

/* ===== DOMAIN PROGRESS ===== */
.dm-domain-progress { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; margin-bottom: 24px; }
.dm-domain-progress-card { background: var(--dm-bg); border: 1px solid var(--dm-border); border-radius: var(--dm-radius); padding: 18px; }
.dm-domain-progress-card h4 { margin: 0 0 8px; font-weight: 700; }
.dm-domain-stats { display: flex; gap: 12px; font-size: 12px; color: var(--dm-text-muted); flex-wrap: wrap; margin-top: 8px; }

/* ===== BADGES GRID ===== */
.dm-badges-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; margin: 16px 0; }
.dm-badge-card { background: var(--dm-bg); border: 1px solid var(--dm-border); border-radius: var(--dm-radius); padding: 16px; text-align: center; transition: all 0.2s; }
.dm-badge-card.dm-badge-earned { border-color: #fbbf24; background: #fffbeb; }
.dm-badge-card.dm-badge-locked { opacity: 0.4; filter: grayscale(1); }
.dm-badge-icon-lg { font-size: 36px; display: block; margin-bottom: 6px; }
.dm-badge-card h5 { margin: 0 0 2px; font-size: 13px; font-weight: 700; }
.dm-badge-card p { margin: 0; font-size: 11px; color: var(--dm-text-muted); }

/* ===== TABLES ===== */
.dm-table { width: 100%; border-collapse: collapse; background: var(--dm-bg); border-radius: var(--dm-radius); overflow: hidden; box-shadow: var(--dm-shadow); }
.dm-table thead { background: var(--dm-bg-soft); }
.dm-table th { padding: 12px 16px; text-align: left; font-size: 12px; font-weight: 700; color: var(--dm-text-muted); text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 2px solid var(--dm-border); }
.dm-table td { padding: 12px 16px; font-size: 14px; border-bottom: 1px solid var(--dm-border); }
.dm-table tr:hover { background: var(--dm-bg-soft); }
.dm-table tr:last-child td { border-bottom: none; }
.dm-leaderboard-table .dm-top-3 { background: #fffbeb; }
.dm-rank { font-size: 20px; text-align: center; }

/* ===== KNOWLEDGE BASE ===== */
.dm-kb-category { margin-bottom: 28px; }
.dm-kb-card { background: var(--dm-bg); border: 1px solid var(--dm-border); border-radius: var(--dm-radius); padding: 18px; margin-bottom: 12px; transition: all 0.2s; }
.dm-kb-card:hover { box-shadow: var(--dm-shadow-md); }
.dm-kb-card h4 { margin: 0 0 8px; color: var(--dm-primary); font-weight: 700; }
.dm-kb-card p { margin: 0 0 8px; font-size: 14px; line-height: 1.6; }
.dm-kb-examples { background: var(--dm-bg-soft); padding: 12px; border-radius: 8px; font-size: 13px; margin-bottom: 8px; }
.dm-kb-meta { display: flex; gap: 16px; font-size: 11px; color: var(--dm-text-muted); font-weight: 500; }

/* ===== CERTIFICATE ===== */
.dm-certificate { --cert-primary: #1a5276; --cert-accent: #d4af37; background: var(--dm-bg); border-radius: 16px; padding: 50px 40px; text-align: center; max-width: 700px; margin: 20px auto; box-shadow: 0 8px 30px rgba(0,0,0,0.1); }
.dm-cert-style-classic { border: 3px solid var(--cert-primary); }
.dm-cert-style-modern { border: 1px solid var(--dm-border); border-top: 5px solid var(--cert-primary); }
.dm-cert-style-elegant { border: 4px double var(--cert-primary); box-shadow: inset 0 0 0 2px var(--cert-accent), 0 8px 30px rgba(0,0,0,0.1); }
.dm-cert-logo { max-height: 60px; margin-bottom: 10px; }
.dm-cert-org { font-size: 11px; text-transform: uppercase; letter-spacing: 3px; color: var(--cert-primary); }
.dm-cert-header h1 { font-size: 28px; color: var(--cert-primary); margin: 8px 0; }
.dm-cert-header h2 { font-size: 16px; color: var(--cert-accent); font-weight: 400; }
.dm-cert-divider { width: 80px; height: 2px; background: var(--cert-accent); margin: 20px auto; }
.dm-cert-awarded { font-size: 14px; color: var(--dm-text-muted); }
.dm-cert-name { font-size: 32px; color: var(--cert-primary); margin: 10px 0; font-weight: 800; }
.dm-cert-text { font-size: 14px; color: #555; line-height: 1.8; max-width: 500px; margin: 10px auto; }
.dm-cert-details { display: flex; justify-content: center; gap: 30px; margin: 20px 0; font-size: 14px; }
.dm-cert-signatory { margin-top: 30px; }
.dm-cert-sig-line { width: 200px; height: 1px; background: #ccc; margin: 0 auto 8px; }
.dm-cert-sig-name { font-weight: 700; }
.dm-cert-sig-title { font-size: 12px; color: var(--dm-text-muted); }
.dm-cert-footer { margin-top: 25px; padding-top: 20px; border-top: 1px solid var(--dm-border); }
.dm-cert-footer-text { font-size: 12px; color: #aaa; margin-bottom: 12px; }

/* ===== TOAST ===== */
.dm-toast { position: fixed; bottom: -60px; left: 50%; transform: translateX(-50%); padding: 12px 24px; border-radius: 10px; font-size: 14px; font-weight: 600; z-index: 999999; transition: bottom 0.3s; font-family: var(--dm-font); box-shadow: 0 8px 24px rgba(0,0,0,0.15); }
.dm-toast-show { bottom: 30px; }
.dm-toast-warning { background: #fef3c7; color: #92400e; border: 1px solid #fbbf24; }
.dm-toast-error { background: #fef2f2; color: #991b1b; border: 1px solid #fca5a5; }
.dm-toast-info { background: var(--dm-primary-light); color: #1e40af; border: 1px solid #93c5fd; }

/* ===== MISC ===== */
.dm-error-msg { background: #fef2f2; border: 1px solid #fecaca; padding: 16px 20px; border-radius: 10px; color: #991b1b; font-size: 14px; }
.dm-no-data { text-align: center; padding: 40px; color: var(--dm-text-muted); font-size: 15px; }

/* ===== ANIMATIONS ===== */
@keyframes dm-spin { to { transform: rotate(360deg); } }
@keyframes dm-fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@keyframes dm-slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes dm-pop { 0% { transform: scale(0.8); } 50% { transform: scale(1.1); } 100% { transform: scale(1); } }
@keyframes dm-ringGrow { from { stroke-dasharray: 0 283; } }

/* ===== PRINT ===== */
@media print { .dm-btn, .dm-modal, .dm-filter-bar, .dm-tab-nav, .dm-welcome-header, .dm-daily-challenge, .dm-streak-bar, .dm-no-print { display: none !important; } .dm-certificate { border-width: 2px; box-shadow: none; } }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .dm-domain-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 8px; }
    .dm-domain-card { padding: 14px 10px; }
    .dm-domain-icon { font-size: 28px; }
    .dm-course-grid { grid-template-columns: 1fr; }
    .dm-eval-header { flex-direction: column; text-align: center; }
    .dm-eval-columns { grid-template-columns: 1fr; }
    .dm-dim-label { width: 90px; font-size: 11px; }
    .dm-modal-content { width: 96%; padding: 20px; }
    .dm-cert-details { flex-direction: column; gap: 8px; }
    .dm-welcome-header { padding: 20px; }
    .dm-stats-row { gap: 10px; }
    .dm-stat-mini { min-width: 100px; padding: 14px 16px; }
    .dm-stat-mini strong { font-size: 22px; }
    .dm-daily-challenge { flex-direction: column; text-align: center; }
    .dm-daily-challenge .dm-btn { margin: 8px 0 0; }
    .dm-badges-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); }
}