/*
 * BTC 挖矿收益计算器 - 简易版
 */
.themes_calculator { background: #f5f7fa; }
.themes_calculator .calc_page { padding: 40px 0 80px; min-height: 60vh; }
.calc_page .wide { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.calc_header { text-align: center; margin-bottom: 32px; }
.calc_title { font-size: 28px; font-weight: 700; color: #1a1a2e; margin: 0 0 20px; }
.calc_tabs { display: inline-flex; background: #e8ecf1; border-radius: 8px; padding: 4px; gap: 4px; }
.calc_tab {
	display: inline-block; padding: 8px 24px; border-radius: 6px;
	font-size: 14px; color: #666; text-decoration: none; transition: all .2s;
}
.calc_tab.active, .calc_tab:hover { background: #fff; color: #1a1a2e; font-weight: 600; box-shadow: 0 1px 4px rgba(0,0,0,.08); }

.calc_body { display: flex; flex-direction: column; gap: 24px; }
.calc_form_panel {
	width: 100%; background: #fff; border-radius: 12px;
	padding: 28px; box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.calc_result_panel {
	width: 100%; background: #fff; border-radius: 12px;
	padding: 28px; box-shadow: 0 2px 12px rgba(0,0,0,.06);
}

.calc_form_grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.calc_field_full { grid-column: 1 / -1; }
.calc_field label { display: block; font-size: 13px; color: #555; margin-bottom: 6px; font-weight: 500; }
.calc_field_label_row {
	display: flex; align-items: center; justify-content: space-between;
	gap: 12px; margin-bottom: 6px;
}
.calc_field_label_row label { margin-bottom: 0; flex-shrink: 0; }
.calc_price_total { font-size: 13px; font-weight: 500; color: #1a1a2e; white-space: nowrap; }
.calc_input_wrap {
	display: flex; align-items: center; border: 1px solid #dde3ea;
	border-radius: 8px; overflow: hidden; background: #fafbfc;
	transition: border-color .2s;
}
.calc_input_wrap:focus-within { border-color: #3b82f6; background: #fff; }
.calc_input_wrap_select { padding-right: 4px; }
.calc_input_wrap input, .calc_select {
	flex: 1; border: none; background: transparent; padding: 10px 12px;
	font-size: 14px; color: #1a1a2e; outline: none; min-width: 0;
}
.calc_select {
	width: 100%; cursor: pointer; appearance: auto;
}
.calc_prefix, .calc_suffix {
	padding: 0 10px; font-size: 13px; color: #888; white-space: nowrap; flex-shrink: 0;
}
.calc_suffix_inline { padding-left: 0; }

.calc_input_wrap input[readonly] {
	background: #f0f2f5; color: #666; cursor: not-allowed;
}
.calc_field.has_error .calc_input_wrap {
	border-color: #dde3ea #dde3ea #ef4444 #dde3ea;
	border-bottom-width: 2px;
}
.calc_field.has_error .calc_input_wrap:focus-within {
	border-color: #dde3ea #dde3ea #ef4444 #dde3ea;
}
.calc_field_error {
	display: none; margin-top: 4px; font-size: 12px; line-height: 1.4; color: #ef4444;
}
.calc_field_error.is_show { display: block; }

.calc_submit_btn {
	display: block; width: 100%; margin-top: 24px; padding: 14px;
	background: #1a1a2e; color: #fff; border: none; border-radius: 8px;
	font-size: 16px; font-weight: 600; cursor: pointer; transition: background .2s, opacity .2s;
	position: relative;
}
.calc_submit_btn:hover { background: #2d2d4a; }
.calc_submit_btn.is-loading,
.calc_submit_btn:disabled { opacity: .75; cursor: wait; }
.calc_submit_loading { display: none; align-items: center; justify-content: center; gap: 8px; }
.calc_submit_btn.is-loading .calc_submit_text { display: none; }
.calc_submit_btn.is-loading .calc_submit_loading { display: inline-flex; }
.calc_submit_loading::before {
	content: ''; display: block; width: 16px; height: 16px; flex-shrink: 0;
	border-radius: 50%; border: 2px solid rgba(255,255,255,.35);
	border-top-color: #fff;
	animation: calc_spin .8s linear infinite;
}

.calc_result_panel { position: relative; min-height: 120px; }
.calc_result_loading {
	display: none; position: absolute; inset: 0; z-index: 2;
	flex-direction: column; align-items: center; justify-content: center;
	padding: 48px 20px; text-align: center; color: #888;
	background: rgba(255,255,255,.88); border-radius: 12px;
}
.calc_result_loading p { margin: 12px 0 0; font-size: 14px; line-height: 1.6; }
.calc_result_panel.is-loading .calc_result_loading { display: flex; }
.calc_result_panel.is-loading .calc_result_body { pointer-events: none; }
.calc_result_spinner {
	display: block; width: 32px; height: 32px; border-radius: 50%;
	border: 3px solid #e8ecf1; border-top-color: #3b82f6;
	animation: calc_spin .8s linear infinite;
}
@keyframes calc_spin {
	to { transform: rotate(360deg); }
}

.calc_result_title { font-size: 20px; font-weight: 700; color: #1a1a2e; margin: 0 0 20px; }
.calc_result_cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 28px; }
.calc_result_card {
	background: #f8f9fb; border-radius: 10px; padding: 18px;
	border: 1px solid #eef1f5;
}
.calc_result_label { font-size: 13px; color: #777; margin-bottom: 8px; }
.calc_result_value { font-size: 24px; font-weight: 700; color: #1a1a2e; line-height: 1.2; }
.calc_result_sub { font-size: 12px; color: #999; margin-top: 6px; }

.calc_analysis_section { margin-bottom: 24px; padding-top: 8px; border-top: 1px solid #eef1f5; }
.calc_analysis_section h3 { font-size: 16px; font-weight: 600; color: #333; margin: 0 0 16px; }
.calc_analysis_row { display: flex; gap: 16px; margin-bottom: 12px; }
.calc_analysis_row_3 .calc_analysis_item { flex: 1; }
.calc_analysis_item {
	flex: 1; background: #f8f9fb; border-radius: 8px; padding: 14px;
}
.calc_analysis_highlight { background: #eef6ff; }
.calc_analysis_label { font-size: 12px; color: #888; margin-bottom: 4px; }
.calc_analysis_val { font-size: 18px; font-weight: 600; color: #1a1a2e; }

.calc_payback { margin-top: 16px; }
.calc_payback_title { font-size: 14px; color: #555; margin-bottom: 12px; }
.calc_payback_title strong { color: #3b82f6; font-size: 18px; }
.calc_payback_bar {
	height: 8px; background: #e8ecf1; border-radius: 4px; overflow: hidden;
}
.calc_payback_fill {
	height: 100%; width: 0; background: linear-gradient(90deg, #3b82f6, #60a5fa);
	border-radius: 4px; transition: width .4s ease;
}
.calc_payback_scale {
	display: flex; justify-content: space-between; font-size: 11px; color: #aaa; margin-top: 4px;
}
.calc_payback_legend { display: flex; gap: 16px; margin-top: 8px; font-size: 12px; color: #888; }
.calc_payback_legend .legend_payback::before,
.calc_payback_legend .legend_period::before {
	content: ''; display: inline-block; width: 12px; height: 4px;
	border-radius: 2px; margin-right: 6px; vertical-align: middle;
}
.calc_payback_legend .legend_payback::before { background: #3b82f6; }
.calc_payback_legend .legend_period::before { background: #e8ecf1; }

.calc_charts_section {
	margin-bottom: 24px; padding-top: 8px; border-top: 1px solid #eef1f5;
	display: flex; flex-direction: column; gap: 16px;
}
.calc_charts_section h3 { font-size: 16px; font-weight: 600; color: #333; margin: 0; }
.calc_chart_box {
	width: 100%; background: #f8f9fb; border-radius: 10px; padding: 16px;
	border: 1px solid #eef1f5; box-sizing: border-box;
}
.calc_chart_title { font-size: 13px; font-weight: 600; color: #555; margin-bottom: 8px; }
.calc_chart { width: 100%; height: 320px; }
#chart_cumulative.calc_chart { height: 360px; }
#chart_summary.calc_chart { height: 280px; }

.calc_disclaimer {
	font-size: 12px; color: #aaa; line-height: 1.6; margin: 20px 0 0;
	padding-top: 16px; border-top: 1px solid #eef1f5;
}

.calc_history_panel {
	width: 100%; background: #fff; border-radius: 12px;
	padding: 24px 28px; box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.calc_history_header {
	display: flex; align-items: center; justify-content: space-between;
	margin-bottom: 16px; gap: 12px;
}
.calc_history_header h3 { font-size: 16px; font-weight: 600; color: #333; margin: 0; }
.calc_history_clear_btn {
	padding: 6px 14px; font-size: 13px; color: #666; background: #f5f7fa;
	border: 1px solid #dde3ea; border-radius: 6px; cursor: pointer; transition: all .2s;
}
.calc_history_clear_btn:hover { color: #ef4444; border-color: #fecaca; background: #fef2f2; }
.calc_history_empty {
	font-size: 14px; color: #aaa; text-align: center; padding: 24px 12px;
	background: #f8f9fb; border-radius: 8px; border: 1px dashed #e8ecf1;
}
.calc_history_list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.calc_history_item {
	display: flex; align-items: stretch; gap: 8px;
	border: 1px solid #eef1f5; border-radius: 10px; overflow: hidden;
	background: #fafbfc; transition: border-color .2s, box-shadow .2s;
}
.calc_history_item.is_active { border-color: #3b82f6; box-shadow: 0 0 0 1px rgba(59,130,246,.15); }
.calc_history_main {
	flex: 1; display: flex; flex-direction: column; align-items: flex-start; gap: 4px;
	padding: 14px 16px; border: none; background: transparent; cursor: pointer; text-align: left;
}
.calc_history_main:hover { background: #f0f4ff; }
.calc_history_time { font-size: 12px; color: #999; }
.calc_history_model { font-size: 14px; font-weight: 600; color: #1a1a2e; }
.calc_history_meta { font-size: 12px; color: #888; }
.calc_history_profit { font-size: 13px; font-weight: 500; margin-top: 2px; }
.calc_history_profit.is_profit { color: #10b981; }
.calc_history_profit.is_loss { color: #ef4444; }
.calc_history_delete {
	flex-shrink: 0; align-self: center; margin-right: 10px;
	padding: 6px 10px; font-size: 12px; color: #999; background: transparent;
	border: 1px solid #e8ecf1; border-radius: 6px; cursor: pointer; transition: all .2s;
}
.calc_history_delete:hover { color: #ef4444; border-color: #fecaca; background: #fef2f2; }

@media (max-width: 960px) {
	.calc_result_cards { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
	.calc_form_grid { grid-template-columns: 1fr; }
	.calc_title { font-size: 22px; }
}