@import url('https://fonts.googleapis.com/css2?family=Source+Code+Pro:wght@400;500;600;700&display=swap');

@import url('https://fonts.googleapis.com/css2?family=Courier+Prime&display=swap');

:root[data-theme="dark"] {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f3460;
    --text-primary: #ffffff;
    --text-secondary: #aaaaaa;
    --text-accent: #00d4ff;
    --border-color: #333333;
    --card-shadow: 0 4px 20px rgba(0,0,0,0.4);
    --badge-bg: #0f3460;
    --badge-text: #00d4ff;
    --success: #00ff88;
    --warning: #ffcc00;
    --danger: #ff4444;
    --card-hover-bg: linear-gradient(135deg, #f0f2f5 0%, #ffffff 100%);
    --card-hover-text: #1a1a2e;
}
:root[data-theme="light"] {
    --bg-primary: #f0f2f5;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e8edf5;
    --text-primary: #1a1a2e;
    --text-secondary: #555555;
    --text-accent: #0066cc;
    --border-color: #dddddd;
    --card-shadow: 0 4px 20px rgba(0,0,0,0.1);
    --badge-bg: #e8edf5;
    --badge-text: #0066cc;
    --success: #00aa55;
    --warning: #cc8800;
    --danger: #cc0000;
    --card-hover-bg: linear-gradient(135deg, #e4002b 0%, #a30020 100%);
    --card-hover-text: #ffffff;
}
* { margin: 0; padding: 0; box-sizing: border-box; transition: background 0.3s, color 0.3s; }
body { font-family: 'Source Code Pro', monospace; background: var(--bg-primary); color: var(--text-primary); min-height: 100vh; display: flex; flex-direction: column; }
header { background: #e4002b; padding: 0; box-shadow: 0 2px 10px rgba(228,0,43,0.4); }
.header-top { display: flex; align-items: center; justify-content: space-between; padding: 12px 30px; }
.header-logo { display: flex; align-items: center; gap: 15px; }

/* F5 Round Ball Logo */
.f5-logo {
    background: white;
    color: #e4002b;
    font-weight: 900;
    font-size: 1.2em;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    letter-spacing: -1px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
    flex-shrink: 0;
}

.header-title { color: white; font-size: 1.3em; font-weight: 600; font-family: 'Source Code Pro', monospace; }
.header-title span { color: #ffcccc; font-weight: 400; font-size: 0.85em; margin-left: 8px; }
.header-controls { display: flex; align-items: center; gap: 15px; }
.env-badge { background: rgba(255,255,255,0.2); color: white; padding: 5px 12px; border-radius: 20px; font-size: 0.8em; font-weight: 600; border: 1px solid rgba(255,255,255,0.3); display: flex; align-items: center; gap: 6px; }
.env-badge::before { content: '●'; color: #00ff88; font-size: 0.7em; }
.theme-toggle { background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.3); border-radius: 20px; padding: 5px 14px; cursor: pointer; color: white; font-size: 0.85em; display: flex; align-items: center; gap: 6px; font-family: 'Source Code Pro', monospace; }
.theme-toggle:hover { background: rgba(255,255,255,0.25); }

/* Nav */
nav { background: var(--bg-secondary); border-bottom: 2px solid #e4002b; padding: 0 30px; display: flex; align-items: center; gap: 5px; box-shadow: var(--card-shadow); }
nav a { color: var(--text-secondary); padding: 14px 16px; text-decoration: none; font-size: 0.9em; font-weight: 500; border-bottom: 3px solid transparent; margin-bottom: -2px; display: flex; align-items: center; gap: 6px; font-family: 'Source Code Pro', monospace; }
nav a:hover { color: var(--text-primary); border-bottom-color: #e4002b; }
nav a.active { color: #e4002b; border-bottom-color: #e4002b; font-weight: 600; }

/* Container */
.container { max-width: 1200px; margin: 0 auto; padding: 40px 30px; flex: 1; }
.page-title { font-size: 1.4em; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.page-subtitle { color: var(--text-secondary); font-size: 0.9em; margin-bottom: 30px; }

/* Cards with hover effect */
.card {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 25px;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s, background 0.3s, color 0.3s;
}
.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: #e4002b;
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
    background: var(--card-hover-bg);
    color: var(--card-hover-text);
}
.card:hover .card-title,
.card:hover .card-desc,
.card:hover .tag {
    color: var(--card-hover-text) !important;
    opacity: 0.95;
}
.card:hover .btn {
    background: var(--card-hover-text);
    color: #e4002b;
}

.section-title { color: var(--text-primary); font-size: 1.1em; font-weight: 600; margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }
.section-title::after { content: ''; flex: 1; height: 1px; background: var(--border-color); margin-left: 10px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; background: #e4002b; color: white; padding: 8px 18px; border-radius: 6px; text-decoration: none; font-size: 0.85em; font-weight: 500; border: none; cursor: pointer; font-family: 'Source Code Pro', monospace; transition: background 0.2s, color 0.2s; }
.btn:hover { background: #b30022; color: white; }
.btn-outline { background: transparent; border: 1px solid #e4002b; color: #e4002b; }
.btn-outline:hover { background: #e4002b; color: white; }
.btn-secondary { background: var(--bg-tertiary); color: var(--text-accent); border: 1px solid var(--border-color); }
.btn-secondary:hover { background: var(--text-accent); color: var(--bg-primary); }

.tag { display: inline-block; background: var(--badge-bg); color: var(--badge-text); padding: 2px 8px; border-radius: 10px; font-size: 0.72em; font-weight: 600; transition: color 0.3s; }
.warning-box { background: rgba(228,0,43,0.1); border: 1px solid rgba(228,0,43,0.3); border-radius: 8px; padding: 15px; margin-bottom: 25px; color: var(--text-primary); font-size: 0.88em; }
.info-box { background: rgba(0,212,255,0.1); border: 1px solid rgba(0,212,255,0.3); border-radius: 8px; padding: 15px; margin-bottom: 25px; color: var(--text-primary); font-size: 0.88em; }
.result-box { margin-top: 12px; padding: 12px; background: var(--bg-tertiary); border-radius: 6px; font-size: 0.85em; border-left: 3px solid var(--text-accent); display: none; }

/* Footer */
footer { background: var(--bg-secondary); border-top: 1px solid var(--border-color); padding: 20px 30px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.footer-left { color: var(--text-secondary); font-size: 0.82em; }
.footer-right { display: flex; gap: 15px; }
.footer-right a { color: var(--text-secondary); font-size: 0.82em; text-decoration: none; }
.footer-right a:hover { color: #e4002b; }