/* ============================================ option-price.com — 2026 Stylesheet Theme switcher via data-theme on Themes: dark (default), slate, light ============================================ */ @import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@300;400;500&family=Syne:wght@400;600;700;800&display=swap'); /* ============================================ THEME DEFINITIONS ============================================ */ /* Dark (default) */ body, body[data-theme="dark"] { --bg: #090c10; --surface: #0f1318; --surface2: #161b22; --border: #1e2530; --text: #e8edf5; --muted: #5a6478; --accent: #00e5a0; --accent2: #ff4d6a; --accent3: #6c8fff; --call: #00e5a0; --put: #ff4d6a; --nav-bg: rgba(9,12,16,0.88); --input-bg: #090c10; --btn-text: #090c10; --shadow: none; --grid-color: rgba(0,229,160,0.03); --orb-color: rgba(0,229,160,0.06); --focus-ring: rgba(0,229,160,0.12); --row-hover: rgba(255,255,255,0.02); } /* Slate blue */ body[data-theme="slate"] { --bg: #1a2744; --surface: #1e2f52; --surface2: #243660; --border: #2d4070; --text: #eef2fa; --muted: #7a90b8; --accent: #4db8ff; --accent2: #ff4d6a; --accent3: #a78bfa; --call: #4db8ff; --put: #ff4d6a; --nav-bg: rgba(26,39,68,0.92); --input-bg: #152038; --btn-text: #1a2744; --shadow: none; --grid-color: rgba(77,184,255,0.04); --orb-color: rgba(77,184,255,0.07); --focus-ring: rgba(77,184,255,0.15); --row-hover: rgba(255,255,255,0.03); } /* Light */ body[data-theme="light"] { --bg: #f5f7fa; --surface: #ffffff; --surface2: #f0f3f8; --border: #e2e8f0; --text: #0f172a; --muted: #64748b; --accent: #0070f3; --accent2: #f03e5a; --accent3: #7c3aed; --call: #0070f3; --put: #f03e5a; --nav-bg: rgba(245,247,250,0.92); --input-bg: #f8fafc; --btn-text: #ffffff; --shadow: 0 1px 4px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.04); --grid-color: rgba(0,112,243,0.04); --orb-color: rgba(0,112,243,0.06); --focus-ring: rgba(0,112,243,0.12); --row-hover: rgba(0,0,0,0.02); } /* ============================================ RESET & BASE ============================================ */ *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; } body { background: var(--bg); color: var(--text); font-family: 'DM Mono', monospace; min-height: 100vh; overflow-x: hidden; transition: background 0.3s ease, color 0.3s ease; } body::before { content: ''; position: fixed; inset: 0; background-image: linear-gradient(var(--grid-color) 1px, transparent 1px), linear-gradient(90deg, var(--grid-color) 1px, transparent 1px); background-size: 40px 40px; pointer-events: none; z-index: 0; } body::after { content: ''; position: fixed; top: -200px; right: -200px; width: 600px; height: 600px; background: radial-gradient(circle, var(--orb-color) 0%, transparent 70%); pointer-events: none; z-index: 0; } /* ============================================ NAVIGATION ============================================ */ nav { position: sticky; top: 0; z-index: 100; background: var(--nav-bg); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); padding: 0 2rem; display: flex; align-items: center; gap: 1.5rem; height: 56px; transition: background 0.3s ease, border-color 0.3s ease; } .nav-logo { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1rem; letter-spacing: -0.02em; color: var(--text); text-decoration: none; display: flex; align-items: center; gap: 8px; margin-right: auto; } .nav-logo span { color: var(--accent); } .nav-logo::before { content: ''; display: block; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); animation: pulse 2s ease-in-out infinite; flex-shrink: 0; } @keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(0.8); } } nav a { color: var(--muted); text-decoration: none; font-size: 0.72rem; letter-spacing: 0.05em; text-transform: uppercase; transition: color 0.2s; white-space: nowrap; } nav a:hover { color: var(--text); } nav a.active { color: var(--accent); } /* Theme switcher */ .theme-switcher { display: flex; align-items: center; gap: 3px; margin-left: 0.5rem; border: 1px solid var(--border); border-radius: 3px; padding: 3px; background: var(--surface); flex-shrink: 0; } .theme-btn { width: 24px; height: 24px; border-radius: 2px; border: none; cursor: pointer; display: flex; align-items: center; justify-content: center; background: transparent; opacity: 0.4; transition: opacity 0.15s, background 0.15s; font-size: 12px; line-height: 1; } .theme-btn:hover { opacity: 0.75; } .theme-btn.active { opacity: 1; background: var(--accent); } /* ============================================ LAYOUT ============================================ */ .main { position: relative; z-index: 1; max-width: 1100px; margin: 0 auto; padding: 2.5rem 2rem 4rem; } .page-header { margin-bottom: 2.5rem; display: flex; align-items: flex-end; justify-content: space-between; } .page-header h1 { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1.75rem; letter-spacing: -0.03em; line-height: 1; } .page-header h1 em { font-style: normal; color: var(--accent); } .model-badge { font-size: 0.65rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); border: 1px solid var(--border); padding: 4px 10px; border-radius: 2px; } .calculator-grid { display: grid; grid-template-columns: 340px 1fr; gap: 1.5rem; align-items: start; } /* ============================================ PANELS ============================================ */ .panel { background: var(--surface); border: 1px solid var(--border); border-radius: 4px; overflow: hidden; box-shadow: var(--shadow); transition: background 0.3s ease, border-color 0.3s ease; } .panel-header { padding: 12px 18px; border-bottom: 1px solid var(--border); font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); display: flex; align-items: center; gap: 8px; transition: border-color 0.3s; } .panel-header::before { content: ''; width: 3px; height: 12px; background: var(--accent); border-radius: 2px; display: block; flex-shrink: 0; transition: background 0.3s; } /* ============================================ INPUTS ============================================ */ .inputs-grid { padding: 18px; display: flex; flex-direction: column; gap: 14px; } .field { display: flex; flex-direction: column; gap: 6px; } .field label { font-size: 0.65rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); } .input-wrap { position: relative; display: flex; align-items: center; } .input-wrap input[type="number"] { width: 100%; background: var(--input-bg); border: 1px solid var(--border); border-radius: 3px; color: var(--text); font-family: 'DM Mono', monospace; font-size: 0.9rem; padding: 9px 40px 9px 12px; outline: none; transition: border-color 0.2s, box-shadow 0.2s, background 0.3s; -moz-appearance: textfield; } .input-wrap input[type="number"]::-webkit-inner-spin-button, .input-wrap input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; } .input-wrap input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--focus-ring); } .input-unit { position: absolute; right: 12px; font-size: 0.7rem; color: var(--muted); pointer-events: none; } .input-slider { width: 100%; -webkit-appearance: none; appearance: none; height: 2px; background: var(--border); border-radius: 2px; outline: none; cursor: pointer; margin-top: 4px; transition: background 0.3s; } .input-slider::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%; background: var(--accent); cursor: pointer; box-shadow: 0 0 8px var(--focus-ring); transition: transform 0.15s, background 0.3s; } .input-slider::-webkit-slider-thumb:hover { transform: scale(1.3); } .input-slider::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: var(--accent); cursor: pointer; border: none; } /* ============================================ BUTTON ============================================ */ .calc-btn { margin: 0 18px 18px; width: calc(100% - 36px); background: var(--accent); color: var(--btn-text); border: none; border-radius: 3px; font-family: 'Syne', sans-serif; font-weight: 700; font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; padding: 12px; cursor: pointer; transition: opacity 0.2s, transform 0.15s, background 0.3s, color 0.3s; position: relative; overflow: hidden; } .calc-btn::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.18) 50%, transparent 100%); transform: translateX(-100%); transition: transform 0.4s; } .calc-btn:hover::after { transform: translateX(100%); } .calc-btn:hover { opacity: 0.88; } .calc-btn:active { transform: scale(0.98); } /* ============================================ PRICE CARDS ============================================ */ .results-side { display: flex; flex-direction: column; gap: 1.5rem; } .price-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 4px; overflow: hidden; box-shadow: var(--shadow); } .price-card { background: var(--surface); padding: 20px 22px; position: relative; overflow: hidden; transition: background 0.3s ease; } .price-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; transition: background 0.3s; } .price-card.call::before { background: var(--call); } .price-card.put::before { background: var(--put); } .price-card-label { font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 8px; transition: color 0.3s; } .price-card.call .price-card-label { color: var(--call); } .price-card.put .price-card-label { color: var(--put); } .price-card-value { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 2.2rem; letter-spacing: -0.04em; line-height: 1; margin-bottom: 4px; } .price-card-sub { font-size: 0.65rem; color: var(--muted); } .iv-display { display: flex; align-items: center; gap: 16px; padding: 14px 18px; border-top: 1px solid var(--border); font-size: 0.72rem; color: var(--muted); grid-column: 1 / -1; background: var(--surface); transition: background 0.3s, border-color 0.3s; flex-wrap: wrap; } .iv-display strong { color: var(--accent3); font-size: 0.9rem; font-weight: 500; } .iv-display .put-strong { color: var(--put); font-size: 0.9rem; font-weight: 500; } /* ============================================ GREEKS TABLE ============================================ */ .greeks-table { width: 100%; border-collapse: collapse; } .greeks-table th { font-size: 0.63rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); padding: 10px 18px; text-align: left; border-bottom: 1px solid var(--border); font-weight: 400; } .greeks-table th:last-child, .greeks-table td:last-child { text-align: right; } .greeks-table th:nth-child(2), .greeks-table td:nth-child(2) { text-align: center; } .greeks-table td { padding: 10px 18px; font-size: 0.82rem; border-bottom: 1px solid var(--border); transition: background 0.15s; } .greeks-table tr:last-child td { border-bottom: none; } .greeks-table tr:hover td { background: var(--row-hover); } .greek-name { display: flex; align-items: center; gap: 10px; } .greek-symbol { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 0.9rem; color: var(--muted); width: 18px; text-align: center; } .val-call { color: var(--call); } .val-put { color: var(--put); } .bar-wrap { display: flex; align-items: center; gap: 6px; justify-content: center; } .bar-track { width: 60px; height: 3px; background: var(--border); border-radius: 2px; overflow: hidden; } .bar-fill { height: 100%; border-radius: 2px; transition: width 0.5s cubic-bezier(0.16,1,0.3,1), background 0.3s; } .bar-fill.call { background: var(--call); } .bar-fill.put { background: var(--put); } /* ============================================ CHART ============================================ */ .chart-panel .panel-body { padding: 18px; } .chart-tabs { display: flex; gap: 2px; margin-bottom: 16px; flex-wrap: wrap; } .chart-tab { font-size: 0.65rem; letter-spacing: 0.08em; text-transform: uppercase; padding: 6px 12px; border: 1px solid var(--border); background: transparent; color: var(--muted); cursor: pointer; border-radius: 2px; font-family: 'DM Mono', monospace; transition: all 0.15s; } .chart-tab.active { background: var(--accent); color: var(--btn-text); border-color: var(--accent); font-weight: 500; } .chart-tab:hover:not(.active) { color: var(--text); border-color: var(--muted); } svg.payoff-chart { display: block; width: 100%; } /* ============================================ ANIMATIONS ============================================ */ @keyframes fadeInUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } } .main > * { animation: fadeInUp 0.4s ease both; } .page-header { animation-delay: 0.05s; } .calculator-grid { animation-delay: 0.1s; } /* ============================================ RESPONSIVE ============================================ */ @media (max-width: 900px) { .calculator-grid { grid-template-columns: 1fr; } } /* Hamburger button — hidden on desktop */ .nav-hamburger { display: none; width: 36px; height: 36px; background: transparent; border: 1px solid var(--border); border-radius: 3px; cursor: pointer; margin-left: auto; flex-shrink: 0; transition: border-color 0.2s; box-sizing: border-box; font-size: 18px; line-height: 36px; text-align: center; color: var(--text); -webkit-appearance: none; appearance: none; padding: 0; } .nav-hamburger span { display: none; } .nav-hamburger::before { display: none; } .nav-hamburger::after { display: none; } /* Mobile menu dropdown */ .nav-mobile-menu { display: none; position: fixed; top: 56px; left: 0; right: 0; background: var(--nav-bg); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); z-index: 99; flex-direction: column; padding: 8px 0; box-shadow: 0 4px 20px rgba(0,0,0,0.15); } .nav-mobile-menu.open { display: flex; } .nav-mobile-menu a { display: block; padding: 12px 24px; color: var(--muted); text-decoration: none; font-size: 0.78rem; letter-spacing: 0.05em; text-transform: uppercase; border-left: 2px solid transparent; transition: color 0.15s, border-color 0.15s, background 0.15s; } .nav-mobile-menu a:hover { color: var(--text); background: var(--row-hover); } .nav-mobile-menu a.active { color: var(--accent); border-left-color: var(--accent); } @media (max-width: 768px) { /* Hide desktop nav links, show hamburger */ nav a:not(.nav-logo) { display: none; } .theme-switcher { display: none; } .nav-hamburger { display: block; } .price-card-value { font-size: 1.6rem; } .main { padding: 1.5rem 1rem 3rem; } nav { padding: 0 1rem; gap: 1rem; } }