/* ============================================
   Quantum Trade Pro Calculator
   Premium Dark Theme with Glassmorphism
============================================ */

/* === DESIGN TOKENS === */
:root {
    --bg-color: #050511;
    --card-bg: rgba(20, 20, 35, 0.6);
    --input-bg: rgba(10, 10, 20, 0.8);
    --border-color: rgba(255, 255, 255, 0.08);
    --primary: #7C3AED;
    --accent: #22D3EE;
    --success: #10B981;
    --danger: #EF4444;
    --text-primary: #FFFFFF;
    --text-secondary: #94A3B8;
    --font-family: 'Outfit', sans-serif;
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --backdrop-blur: 16px;
}

/* === RESET === */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-family);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
}

/* === UTILITY CLASSES === */
.hidden {
    display: none !important;
}

/* === BACKGROUND EFFECTS === */
.app-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--primary), transparent 70%);
    animation: drift 20s infinite alternate;
}

.blob-2 {
    bottom: -10%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, #2563EB, transparent 70%);
    animation: drift 25s infinite alternate-reverse;
}

@keyframes drift {
    0% {
        transform: translate(0, 0);
    }

    100% {
        transform: translate(30px, 50px);
    }
}

/* === CONTAINER === */
.container {
    width: 100%;
    max-width: 1100px;
    padding: 2rem;
    z-index: 10;
}

/* === HEADER === */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: rgba(124, 58, 237, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(124, 58, 237, 0.3);
}

.logo-text h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.logo-text h1 span {
    color: var(--text-secondary);
    font-weight: 300;
}

.subtitle {
    display: block;
    font-size: 0.7rem;
    color: var(--text-secondary);
    letter-spacing: 2px;
}

/* === MARKET TICKER === */
.market-ticker {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    background: rgba(255, 255, 255, 0.03);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    border: 1px solid var(--border-color);
}

.ticker-item {
    display: flex;
    gap: 0.5rem;
    font-size: 0.9rem;
    align-items: center;
}

.ticker-item .symbol {
    color: var(--text-secondary);
    font-weight: 600;
}

.price {
    font-family: var(--font-family);
    font-weight: 600;
    letter-spacing: 0.5px;
    font-variant-numeric: tabular-nums;
}

.price.up {
    color: var(--success);
}

.price.down {
    color: var(--danger);
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.75rem;
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    padding: 2px 8px;
    border-radius: 12px;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.dot {
    width: 6px;
    height: 6px;
    background: currentColor;
    border-radius: 50%;
    box-shadow: 0 0 8px currentColor;
}

/* === LANGUAGE SWITCH === */
.lang-btn {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(34, 211, 238, 0.1));
    border: 1px solid rgba(124, 58, 237, 0.4);
    color: var(--primary);
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-family: var(--font-family);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lang-btn:hover {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.4), rgba(34, 211, 238, 0.2));
    border-color: var(--primary);
    box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
    transform: translateY(-1px);
}

/* === TABS NAVIGATION === */
.tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    background: var(--card-bg);
    padding: 0.5rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    width: fit-content;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(124, 58, 237, 0.4);
}

/* === CALCULATOR LAYOUT === */
.calculator-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 1.5rem;
}

/* === PANELS === */
.panel {
    background: var(--card-bg);
    backdrop-filter: blur(var(--backdrop-blur));
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--glass-shadow);
    transition: border-color 0.3s ease;
}

.panel:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.panel-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 2rem;
}

.panel-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

h2 {
    font-size: 1.1rem;
    font-weight: 600;
}

/* === INPUT FORMS === */
.input-group-row {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.input-wrapper {
    flex: 1;
}

label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.input-field {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0 1rem;
    height: 50px;
    display: flex;
    align-items: center;
    transition: all 0.2s ease;
}

.input-field:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.2);
}

.input-field input {
    background: transparent;
    border: none;
    color: white;
    width: 100%;
    height: 100%;
    font-family: var(--font-family);
    font-size: 1rem;
    outline: none;
}

/* Hide number input spinners */
.input-field input[type=number]::-webkit-inner-spin-button,
.input-field input[type=number]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.input-field input[type=number] {
    -moz-appearance: textfield;
    appearance: textfield;
}

.prefix,
.suffix {
    color: var(--text-secondary);
    font-weight: 500;
}

.prefix {
    margin-right: 0.5rem;
}

.suffix {
    margin-left: 0.5rem;
}

.action-btn {
    background: rgba(124, 58, 237, 0.2);
    color: var(--primary);
    border: none;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.75rem;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.2s;
}

.action-btn:hover {
    background: rgba(124, 58, 237, 0.3);
}

.quick-actions {
    display: flex;
    gap: 0.8rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.pill-btn {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(34, 211, 238, 0.05));
    border: 1px solid rgba(124, 58, 237, 0.3);
    color: var(--text-secondary);
    padding: 8px 18px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 0.8rem;
    font-family: var(--font-family);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.pill-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.pill-btn:hover {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.3), rgba(34, 211, 238, 0.15));
    border-color: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(124, 58, 237, 0.2);
    transform: translateY(-1px);
}

.pill-btn:hover::before {
    left: 100%;
}

.pill-btn:active {
    transform: translateY(0);
}

/* === TOGGLE SWITCH (Long/Short) === */
.toggle-wrapper {
    display: flex;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 4px;
    margin-bottom: 1.5rem;
    position: relative;
    cursor: pointer;
    overflow: hidden;
}

.toggle-option {
    flex: 1;
    text-align: center;
    padding: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    z-index: 2;
    transition: color 0.3s;
    user-select: none;
}

.toggle-option.selected {
    color: white;
}

.toggle-bg {
    position: absolute;
    top: 4px;
    left: 4px;
    width: calc(50% - 4px);
    height: calc(100% - 8px);
    background: var(--success);
    border-radius: 8px;
    transition: transform 0.3s cubic-bezier(0.4, 0.0, 0.2, 1), background 0.3s;
    z-index: 1;
}

.toggle-wrapper[data-state="long"] .toggle-bg {
    background: var(--success);
    transform: translateX(0);
}

.toggle-wrapper[data-state="short"] .toggle-bg {
    background: var(--danger);
    transform: translateX(100%);
}

/* === SLIDER (Leverage) === */
.slider-container {
    width: 100%;
    padding-top: 0.5rem;
}

.slider-container input[type=range] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
}

.slider-container input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: 0 0 10px rgba(124, 58, 237, 0.5);
    transition: transform 0.2s;
}

.slider-container input[type=range]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

/* === QUANTITY MODE TOGGLE === */
.label-with-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.mini-toggle {
    display: flex;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    padding: 2px;
    gap: 2px;
}

.mini-toggle-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 4px 10px;
    font-size: 0.75rem;
    font-family: var(--font-family);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s;
}

.mini-toggle-btn:hover {
    color: var(--text-primary);
}

.mini-toggle-btn.active {
    background: var(--primary);
    color: white;
}

/* === CURRENCY SELECTOR === */
.currency-select {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.25), rgba(124, 58, 237, 0.15));
    border: 1px solid rgba(124, 58, 237, 0.4);
    color: var(--primary);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-family: var(--font-family);
    font-weight: 600;
    cursor: pointer;
    outline: none;
    transition: all 0.2s ease;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%237C3AED' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    padding-right: 28px;
}

.currency-select:hover {
    border-color: var(--primary);
    box-shadow: 0 0 12px rgba(124, 58, 237, 0.3);
}

.currency-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.2);
}

.currency-select option {
    background: #1a1a2e;
    color: var(--text-primary);
    padding: 12px;
    font-weight: 500;
}

/* === CALCULATION HINT === */
.calc-hint {
    font-size: 0.8rem;
    color: var(--accent);
    margin-top: 0.5rem;
    padding-left: 0.5rem;
}

.calc-hint span {
    font-weight: 600;
}

/* === HINT TEXT === */
.hint-label {
    color: var(--accent) !important;
    font-size: 0.85rem;
}

.hint-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
}

/* === RESULTS PANEL === */
.main-result {
    text-align: center;
    background: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.main-result .label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.main-result .value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.main-result .sub-value {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.03);
    padding: 1rem;
    border-radius: 12px;
}

.stat-card .label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.3rem;
}

.stat-card .value {
    font-size: 1.1rem;
    font-weight: 600;
    display: block;
}

.highlight {
    color: var(--accent);
}

.text-cyan {
    color: var(--accent);
}

/* === FOOTER === */
footer {
    margin-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.icon-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-family);
    transition: all 0.2s;
}

.icon-btn:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
}

/* === LEVERAGE COMBO === */
.leverage-combo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.5rem 1rem;
}

.leverage-number {
    width: 60px;
    background: transparent;
    border: none;
    color: var(--primary);
    font-size: 1.2rem;
    font-weight: 700;
    font-family: var(--font-family);
    text-align: center;
    outline: none;
}

.leverage-number::-webkit-inner-spin-button,
.leverage-number::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.leverage-x {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
}

.leverage-slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
}

.leverage-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: 0 0 8px rgba(124, 58, 237, 0.5);
}

/* === TOAST NOTIFICATIONS === */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    animation: slideIn 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
    max-width: 350px;
}

.toast.success {
    border-color: rgba(16, 185, 129, 0.3);
}

.toast.success .toast-icon {
    color: var(--success);
}

.toast.error {
    border-color: rgba(239, 68, 68, 0.3);
}

.toast.error .toast-icon {
    color: var(--danger);
}

.toast.info {
    border-color: rgba(34, 211, 238, 0.3);
}

.toast.info .toast-icon {
    color: var(--accent);
}

.toast-icon {
    font-size: 1.2rem;
}

.toast-message {
    font-size: 0.9rem;
    color: var(--text-primary);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
    }
}

/* === RESPONSIVE === */
@media (max-width: 850px) {
    .calculator-grid {
        grid-template-columns: 1fr;
    }

    header {
        flex-direction: column;
        gap: 1.5rem;
        align-items: flex-start;
    }

    .market-ticker {
        width: 100%;
        justify-content: space-between;
    }

    .tabs {
        width: 100%;
        overflow-x: auto;
    }

    .logo-section {
        width: 100%;
    }

    .input-group-row {
        flex-direction: column;
        gap: 1rem;
    }
}