/* Alpina Signal - Professional Design */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #0a0b0d;
    --card-bg: #16181d;
    --yellow: #ffc107;
    --yellow-hover: #ffb300;
    --text: #ffffff;
    --text-muted: #6c757d;
    --border: #2a2d35;
    --success: #00e676;
    --error: #ff5252;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.app {
    max-width: 500px;
    margin: 0 auto;
    min-height: 100vh;
    background: var(--bg);
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar {
    width: 44px;
    height: 44px;
    background: var(--card-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.user-details {
    display: flex;
    flex-direction: column;
}

.username {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}

.user-id {
    font-size: 11px;
    color: var(--text-muted);
}

.support-btn {
    width: 44px;
    height: 44px;
    background: var(--card-bg);
    border: none;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.2s;
}

.support-btn:active {
    transform: scale(0.95);
}

/* Navigation */
.nav {
    display: flex;
    justify-content: space-around;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    gap: 8px;
}

.nav-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s;
    flex: 1;
}

.nav-btn.active {
    color: var(--text);
    background: var(--card-bg);
}

/* Attempts Banner */
.attempts-banner {
    padding: 12px 20px;
    background: linear-gradient(90deg, rgba(255,193,7,0.15) 0%, rgba(255,193,7,0.05) 100%);
    border-bottom: 1px solid rgba(255,193,7,0.2);
    text-align: center;
    font-size: 14px;
}

.attempts-banner strong {
    color: var(--yellow);
    font-weight: 700;
}

/* Content */
.content {
    padding: 20px;
}

/* Form Group */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
    font-weight: 500;
}

.select-input {
    width: 100%;
    padding: 14px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%23ffc107' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    transition: border-color 0.2s;
}

.select-input:focus {
    outline: none;
    border-color: var(--yellow);
}

/* Button Group */
.btn-group {
    display: flex;
    gap: 12px;
}

.time-btn {
    flex: 1;
    padding: 12px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.time-btn.active {
    background: var(--yellow);
    color: #000;
    border-color: var(--yellow);
}

.time-btn:hover:not(.active) {
    border-color: var(--yellow);
}

/* Signal Button */
.signal-btn {
    width: 100%;
    padding: 16px;
    background: var(--yellow);
    border: none;
    border-radius: 12px;
    color: #000;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    margin: 24px 0 20px;
    transition: all 0.2s;
}

.signal-btn:hover {
    background: var(--yellow-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(255, 193, 7, 0.3);
}

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

/* Result Box */
.result-box {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    margin-bottom: 20px;
}

.result-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.result-text {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.result-subtext {
    font-size: 13px;
    color: var(--text-muted);
}

.result-box.success .result-text {
    color: var(--success);
}

.result-box.error .result-text {
    color: var(--error);
}

/* Chart Box */
.chart-box {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    margin-top: 20px;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.chart-title {
    font-size: 14px;
    font-weight: 600;
}

.chart-status {
    font-size: 12px;
}

.chart-price {
    font-size: 24px;
    font-weight: 700;
    color: var(--success);
    margin-bottom: 16px;
}

#tradingview_chart {
    width: 100%;
    height: 300px;
    border-radius: 8px;
    overflow: hidden;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.show {
    display: flex;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
}

.modal-box {
    position: relative;
    background: var(--card-bg);
    border-radius: 20px;
    width: 90%;
    max-width: 420px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 24px;
    z-index: 1001;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.modal-box h2 {
    font-size: 22px;
    text-align: center;
    margin-bottom: 12px;
}

.modal-desc {
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 8px;
}

.plans {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 24px;
}

.plan {
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    position: relative;
    transition: all 0.2s;
}

.plan.featured {
    border-color: var(--yellow);
    background: linear-gradient(135deg, rgba(255,193,7,0.1) 0%, rgba(255,193,7,0.05) 100%);
}

.plan-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--yellow);
    color: #000;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
}

.plan-name {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.plan-price {
    font-size: 28px;
    font-weight: 700;
    color: var(--yellow);
    margin-bottom: 16px;
}

.plan-price span {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 400;
}

.plan-features {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 2;
    margin-bottom: 16px;
}

.plan-btn {
    width: 100%;
    padding: 14px;
    background: var(--yellow);
    border: none;
    border-radius: 12px;
    color: #000;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.plan-btn:hover {
    background: var(--yellow-hover);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    z-index: 999;
}

.loading-overlay.show {
    display: flex;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border);
    border-top-color: var(--yellow);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay p {
    margin-top: 16px;
    color: var(--text-muted);
    font-size: 14px;
}

/* Responsive */
@media (max-width: 480px) {
    .content {
        padding: 16px;
    }

    #tradingview_chart {
        height: 250px;
    }
}