/*!
 * pH Calculator — module CSS (e2z-phc- prefix).
 * Color scheme (spec): Primary #7C3AED (litmus violet), Secondary #1E1B4B,
 * Dynamic accents: acidic #DC2626 / neutral #16A34A / basic #2563EB, BG #FAF5FF.
 * Scope: .e2z-tool-ph-calculator (framework shortcode wrapper).
 */

.e2z-tool-ph-calculator,
.e2z-tool-ph-calculator *,
.e2z-tool-ph-calculator *::before,
.e2z-tool-ph-calculator *::after {
	box-sizing: border-box;
}

.e2z-tool-ph-calculator .e2z-phc-container {
	font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
	line-height: 1.5;
	color: #1E1B4B;
	width: 100%;
	margin: 0 auto;
	background: #FAF5FF;
	border-radius: 12px;
	box-shadow: 0 4px 20px rgba(124, 58, 237, 0.13);
	overflow: hidden;
}

/* Monospace technical fields */
.e2z-tool-ph-calculator .e2z-phc-mono,
.e2z-tool-ph-calculator .e2z-phc-stat-value,
.e2z-tool-ph-calculator .e2z-phc-formula {
	font-family: 'SF Mono', 'Courier New', ui-monospace, Menlo, Consolas, monospace;
}

/* Header */
.e2z-tool-ph-calculator .e2z-phc-header {
	padding: 24px 16px;
	background: linear-gradient(135deg, #1E1B4B, #7C3AED);
	color: #fff;
	text-align: center;
}
.e2z-tool-ph-calculator .e2z-phc-title {
	font-size: 1.78rem;
	font-weight: 700;
	margin: 0 0 4px;
	color: #fff;
}
.e2z-tool-ph-calculator .e2z-phc-subtitle {
	font-size: 0.88rem;
	opacity: 0.85;
	margin: 0;
}

/* Layout */
.e2z-tool-ph-calculator .e2z-phc-main-grid {
	display: flex;
	flex-direction: column;
	gap: 20px;
	padding: 16px;
}
@media (min-width: 1024px) {
	.e2z-tool-ph-calculator .e2z-phc-main-grid {
		flex-direction: row;
		align-items: flex-start;
	}
	.e2z-tool-ph-calculator .e2z-phc-inputs-panel { flex: 2; }
	.e2z-tool-ph-calculator .e2z-phc-results-panel { flex: 3; min-width: 370px; }
}

.e2z-tool-ph-calculator .e2z-phc-inputs-panel,
.e2z-tool-ph-calculator .e2z-phc-results-panel {
	background: #FFFFFF;
	border-radius: 12px;
	padding: 20px;
	border: 1px solid #EDE9FE;
	box-shadow: 0 2px 8px rgba(124, 58, 237, 0.05);
}
.e2z-tool-ph-calculator .e2z-phc-section-title {
	font-size: 1.2rem;
	font-weight: 600;
	color: #7C3AED;
	margin: 0 0 12px;
	padding-bottom: 8px;
	border-bottom: 2px solid #EDE9FE;
}

/* Tabs */
.e2z-tool-ph-calculator .e2z-phc-tabs {
	display: flex;
	gap: 4px;
	margin-bottom: 16px;
	background: #FAF5FF;
	padding: 4px;
	border-radius: 8px;
	flex-wrap: wrap;
}
.e2z-tool-ph-calculator .e2z-phc-tab {
	flex: 1;
	min-width: 82px;
	min-height: 44px;
	padding: 10px 6px;
	border: none;
	border-radius: 6px;
	background: transparent;
	color: #6B21A8;
	font-family: inherit;
	font-size: 0.85rem;
	font-weight: 600;
	cursor: pointer;
}
.e2z-tool-ph-calculator .e2z-phc-tab-active {
	background: #7C3AED;
	color: #fff;
}

/* Fields */
.e2z-tool-ph-calculator .e2z-phc-row {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-bottom: 12px;
}
.e2z-tool-ph-calculator .e2z-phc-field {
	flex: 1;
	min-width: 125px;
	display: flex;
	flex-direction: column;
	margin-bottom: 12px;
}
.e2z-tool-ph-calculator .e2z-phc-row .e2z-phc-field { margin-bottom: 0; }
.e2z-tool-ph-calculator .e2z-phc-label {
	font-size: 0.85rem;
	font-weight: 500;
	color: #4C1D95;
	margin-bottom: 4px;
}
.e2z-tool-ph-calculator .e2z-phc-hint {
	font-size: 0.73rem;
	color: #A5A0C4;
	margin-top: 5px;
	line-height: 1.45;
	display: block;
}
.e2z-tool-ph-calculator .e2z-phc-input {
	width: 100%;
	min-height: 44px;
	padding: 10px 12px;
	border: 1px solid #DDD6FE;
	border-radius: 6px;
	font-size: 0.95rem;
	background: #fff;
	color: #1E1B4B;
}
.e2z-tool-ph-calculator .e2z-phc-input:focus {
	outline: none;
	border-color: #7C3AED;
	box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.18);
}

/* Button */
.e2z-tool-ph-calculator .e2z-phc-calc-btn {
	width: 100%;
	min-height: 48px;
	padding: 13px;
	border: none;
	border-radius: 8px;
	background: #7C3AED;
	color: #fff;
	font-family: inherit;
	font-size: 1rem;
	font-weight: 700;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	transition: filter 0.15s ease;
	margin-top: 8px;
}
.e2z-tool-ph-calculator .e2z-phc-calc-btn:hover { filter: brightness(1.12); }
.e2z-tool-ph-calculator .e2z-phc-calc-btn:focus-visible {
	outline: none;
	box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.5);
}

/* Results */
.e2z-tool-ph-calculator .e2z-phc-empty-state {
	padding: 24px;
	text-align: center;
	color: #6B7280;
	background: #FAFAFF;
	border-radius: 8px;
}

/* Dynamic hero — border/text color acid/neutral/base ke hisaab se */
.e2z-tool-ph-calculator .e2z-phc-hero {
	border-radius: 10px;
	padding: 16px;
	text-align: center;
	margin-bottom: 14px;
	background: #1E1B4B;
	border-bottom: 4px solid #16A34A;
}
.e2z-tool-ph-calculator .e2z-phc-hero-acidic { border-bottom-color: #DC2626; }
.e2z-tool-ph-calculator .e2z-phc-hero-neutral { border-bottom-color: #16A34A; }
.e2z-tool-ph-calculator .e2z-phc-hero-basic { border-bottom-color: #2563EB; }
.e2z-tool-ph-calculator .e2z-phc-hero-value {
	font-size: 2.2rem;
	font-weight: 800;
	margin: 4px 0;
	line-height: 1.1;
	font-family: 'SF Mono', 'Courier New', ui-monospace, monospace;
}
.e2z-tool-ph-calculator .e2z-phc-val-acidic { color: #F87171; }
.e2z-tool-ph-calculator .e2z-phc-val-neutral { color: #4ADE80; }
.e2z-tool-ph-calculator .e2z-phc-val-basic { color: #60A5FA; }
.e2z-tool-ph-calculator .e2z-phc-hero-label {
	font-size: 0.83rem;
	font-weight: 600;
	color: #A5A0C4;
	margin: 0;
}
.e2z-tool-ph-calculator .e2z-phc-badge {
	display: inline-block;
	padding: 4px 14px;
	border-radius: 999px;
	font-size: 0.85rem;
	font-weight: 800;
	margin-top: 6px;
}
.e2z-tool-ph-calculator .e2z-phc-badge-acidic { background: #FEE2E2; color: #B91C1C; }
.e2z-tool-ph-calculator .e2z-phc-badge-neutral { background: #DCFCE7; color: #15803D; }
.e2z-tool-ph-calculator .e2z-phc-badge-basic { background: #DBEAFE; color: #1D4ED8; }

/* pH scale bar 0–14 */
.e2z-tool-ph-calculator .e2z-phc-scale-wrap { position: relative; margin: 14px 0 4px; }
.e2z-tool-ph-calculator .e2z-phc-scale {
	display: flex;
	height: 26px;
	border-radius: 999px;
	overflow: hidden;
	border: 1px solid #E5E7EB;
}
.e2z-tool-ph-calculator .e2z-phc-scale span { flex: 1; }
.e2z-tool-ph-calculator .e2z-phc-scale-marker {
	position: absolute;
	top: -6px;
	width: 4px;
	height: 38px;
	background: #1E1B4B;
	border-radius: 2px;
	border: 1px solid #fff;
}
.e2z-tool-ph-calculator .e2z-phc-scale-labels {
	display: flex;
	justify-content: space-between;
	font-size: 0.68rem;
	color: #6B7280;
	margin-top: 5px;
	font-weight: 700;
}

.e2z-tool-ph-calculator .e2z-phc-result-block {
	background: #FAFAFF;
	border: 1px solid #EDE9FE;
	border-radius: 10px;
	padding: 14px;
	margin-bottom: 12px;
}
.e2z-tool-ph-calculator .e2z-phc-result-block h3 {
	font-size: 1rem;
	color: #1E1B4B;
	margin: 0 0 10px;
}
.e2z-tool-ph-calculator .e2z-phc-stat-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
	gap: 10px;
}
.e2z-tool-ph-calculator .e2z-phc-stat {
	background: #fff;
	border: 1px solid #EDE9FE;
	border-radius: 8px;
	padding: 10px;
	text-align: center;
}
.e2z-tool-ph-calculator .e2z-phc-stat-label {
	font-size: 0.72rem;
	font-weight: 600;
	color: #6D28D9;
	margin: 0 0 3px;
	font-family: 'Inter', system-ui, sans-serif;
}
.e2z-tool-ph-calculator .e2z-phc-stat-value {
	font-size: 0.98rem;
	font-weight: 700;
	color: #1E1B4B;
	margin: 0;
	word-break: break-word;
}

.e2z-tool-ph-calculator .e2z-phc-formula {
	display: block;
	background: #1E1B4B;
	color: #C4B5FD;
	border-radius: 6px;
	padding: 9px 11px;
	font-size: 0.84rem;
	margin: 8px 0 0;
	overflow-x: auto;
	white-space: pre;
}
.e2z-tool-ph-calculator .e2z-phc-steps {
	list-style: none;
	margin: 0;
	padding: 0;
}
.e2z-tool-ph-calculator .e2z-phc-steps li {
	padding: 7px 10px 7px 12px;
	border-left: 3px solid #7C3AED;
	margin-bottom: 7px;
	background: #fff;
	border-radius: 0 6px 6px 0;
	font-size: 0.86rem;
	border-top: 1px solid #F5F3FF;
	border-right: 1px solid #F5F3FF;
	border-bottom: 1px solid #F5F3FF;
}

.e2z-tool-ph-calculator .e2z-phc-note {
	font-size: 0.84rem;
	margin: 8px 0 0;
	padding: 9px 11px;
	border-radius: 6px;
}
.e2z-tool-ph-calculator .e2z-phc-note-info { background: #F5F3FF; color: #5B21B6; border-left: 3px solid #7C3AED; }
.e2z-tool-ph-calculator .e2z-phc-note-warn { background: #FFFBEB; color: #92400E; border-left: 3px solid #F59E0B; }
.e2z-tool-ph-calculator .e2z-phc-note-error { background: #FEF2F2; color: #991B1B; border-left: 3px solid #DC2626; }
.e2z-tool-ph-calculator .e2z-phc-note-ok { background: #F0FDF4; color: #166534; border-left: 3px solid #16A34A; }

/* Export */
.e2z-tool-ph-calculator .e2z-phc-export-row {
	display: flex;
	gap: 10px;
	flex-wrap: wrap;
	margin-top: 12px;
}
.e2z-tool-ph-calculator .e2z-phc-print-btn,
.e2z-tool-ph-calculator .e2z-phc-copy-btn {
	flex: 1;
	min-height: 44px;
	padding: 11px;
	border: none;
	border-radius: 8px;
	color: #fff;
	font-family: inherit;
	font-size: 0.88rem;
	font-weight: 600;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
}
.e2z-tool-ph-calculator .e2z-phc-print-btn { background: #1E1B4B; }
.e2z-tool-ph-calculator .e2z-phc-copy-btn { background: #7C3AED; }
.e2z-tool-ph-calculator .e2z-phc-print-btn:hover,
.e2z-tool-ph-calculator .e2z-phc-copy-btn:hover { filter: brightness(1.25); }

.e2z-tool-ph-calculator .e2z-phc-disclaimer {
	font-size: 0.75rem;
	color: #A5A0C4;
	margin: 12px 0 0;
	line-height: 1.45;
}

.e2z-tool-ph-calculator .e2z-phc-hidden { display: none !important; }

/* Responsive */
@media (max-width: 480px) {
	.e2z-tool-ph-calculator .e2z-phc-title { font-size: 1.35rem; }
	.e2z-tool-ph-calculator .e2z-phc-inputs-panel,
	.e2z-tool-ph-calculator .e2z-phc-results-panel { padding: 14px; }
	.e2z-tool-ph-calculator .e2z-phc-hero-value { font-size: 1.7rem; }
	.e2z-tool-ph-calculator .e2z-phc-tab { min-width: 44%; }
}
@media (max-width: 360px) {
	.e2z-tool-ph-calculator .e2z-phc-header { padding: 16px 10px; }
	.e2z-tool-ph-calculator .e2z-phc-title { font-size: 1.15rem; }
	.e2z-tool-ph-calculator .e2z-phc-field { min-width: 100%; }
}