/* Karha Number Pad — frontend */

.knp-wrap {
	--knp-shell: #24272f;
	--knp-shell-2: #2c303a;
	--knp-edge: #14161b;
	--knp-key: #e6e8ec;
	--knp-key-2: #cfd3da;
	--knp-key-text: #22252c;
	--knp-screen: #0d0f13;
	--knp-glow: #f7b733;
	--knp-ghost: rgba(247, 183, 51, 0.16);
	--knp-accent: #17a398;
	--knp-accent-2: #0f8578;
	--knp-error: #e5484d;
	--knp-muted: rgba(255, 255, 255, 0.55);
	--knp-font: Vazirmatn, "Vazir", IRANSans, "IRANYekan", "Iranian Sans", Tahoma, "Segoe UI", sans-serif;

	box-sizing: border-box;
	display: flex;
	justify-content: center;
	font-family: var(--knp-font);
	margin: 24px 0;
}

.knp-wrap *,
.knp-wrap *::before,
.knp-wrap *::after {
	box-sizing: border-box;
}

.knp-theme-light {
	--knp-shell: #f1f2f5;
	--knp-shell-2: #ffffff;
	--knp-edge: #d5d8de;
	--knp-key: #ffffff;
	--knp-key-2: #dfe2e8;
	--knp-key-text: #1d2027;
	--knp-muted: rgba(30, 34, 42, 0.6);
}

.knp-device {
	position: relative;
	width: 100%;
	max-width: 340px;
	padding: 18px 18px 20px;
	border-radius: 26px;
	background: linear-gradient(180deg, var(--knp-shell-2), var(--knp-shell));
	border: 1px solid var(--knp-edge);
	box-shadow: 0 24px 48px -24px rgba(10, 12, 16, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.knp-head {
	text-align: center;
	margin: 2px 0 14px;
}

.knp-title {
	margin: 0;
	font-size: 17px;
	font-weight: 700;
	line-height: 1.6;
	color: var(--knp-key);
}

.knp-theme-light .knp-title {
	color: var(--knp-key-text);
}

.knp-subtitle {
	margin: 4px 0 0;
	font-size: 12.5px;
	line-height: 1.7;
	color: var(--knp-muted);
}

/* --- نمایشگر --- */

.knp-screen {
	position: relative;
	padding: 12px 14px 14px;
	border-radius: 14px;
	background: var(--knp-screen);
	box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.75), 0 1px 0 rgba(255, 255, 255, 0.05);
	overflow: hidden;
}

.knp-screen::after {
	content: "";
	position: absolute;
	inset: 0;
	background: repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 3px);
	pointer-events: none;
}

.knp-screen-top {
	display: flex;
	justify-content: space-between;
	align-items: center;
	font-size: 10.5px;
	letter-spacing: 0.02em;
	color: rgba(247, 183, 51, 0.5);
	margin-bottom: 6px;
}

.knp-display {
	display: flex;
	justify-content: center;
	align-items: center;
	gap: 1px;
	min-height: 40px;
	font-size: clamp(19px, 6vw, 24px);
	font-weight: 600;
	color: var(--knp-glow);
	text-shadow: 0 0 12px rgba(247, 183, 51, 0.35);
	font-variant-numeric: tabular-nums;
}

.knp-display span {
	display: inline-block;
	min-width: 0.62em;
	text-align: center;
}

.knp-display .knp-slot {
	color: var(--knp-ghost);
	text-shadow: none;
}

.knp-display .knp-gap {
	margin-inline-start: 0.28em;
}

.knp-display .is-next {
	animation: knp-blink 1.1s steps(1, end) infinite;
}

@keyframes knp-blink {
	50% {
		opacity: 0.15;
	}
}

/* --- فیلد نام --- */

.knp-name-field {
	display: block;
	margin-top: 12px;
}

.knp-name {
	width: 100%;
	padding: 12px 14px;
	font-family: inherit;
	font-size: 14px;
	color: var(--knp-key-text);
	background: var(--knp-key);
	border: 1px solid transparent;
	border-radius: 12px;
	outline: none;
}

.knp-name:focus-visible {
	border-color: var(--knp-accent);
	box-shadow: 0 0 0 3px rgba(23, 163, 152, 0.3);
}

/* --- کلیدها --- */

.knp-keys {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 9px;
	margin-top: 14px;
}

.knp-key {
	appearance: none;
	border: 0;
	cursor: pointer;
	padding: 0;
	height: 54px;
	border-radius: 14px;
	background: linear-gradient(180deg, var(--knp-key), var(--knp-key-2));
	box-shadow: 0 3px 0 rgba(0, 0, 0, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.7);
	color: var(--knp-key-text);
	font-family: inherit;
	font-size: 22px;
	font-weight: 700;
	line-height: 1;
	transition: transform 0.06s ease, box-shadow 0.06s ease;
	-webkit-tap-highlight-color: transparent;
	user-select: none;
}

.knp-key-face {
	pointer-events: none;
}

.knp-key:hover {
	filter: brightness(1.03);
}

.knp-key:active,
.knp-key.is-pressed {
	transform: translateY(3px);
	box-shadow: 0 0 0 rgba(0, 0, 0, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.knp-key:focus-visible {
	outline: 3px solid var(--knp-accent);
	outline-offset: 2px;
}

.knp-key-fn {
	background: linear-gradient(180deg, #565c6b, #454a57);
	color: #f3f4f7;
	box-shadow: 0 3px 0 rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.16);
	font-size: 18px;
}

.knp-theme-light .knp-key-fn {
	background: linear-gradient(180deg, #6a7080, #565c6b);
}

/* --- دکمه ثبت --- */

.knp-submit {
	appearance: none;
	border: 0;
	cursor: pointer;
	width: 100%;
	margin-top: 12px;
	padding: 15px 16px;
	border-radius: 14px;
	background: linear-gradient(180deg, var(--knp-accent), var(--knp-accent-2));
	box-shadow: 0 3px 0 rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.25);
	color: #fff;
	font-family: inherit;
	font-size: 15.5px;
	font-weight: 700;
	transition: transform 0.06s ease, box-shadow 0.06s ease, opacity 0.2s ease;
	-webkit-tap-highlight-color: transparent;
}

.knp-submit:active {
	transform: translateY(3px);
	box-shadow: 0 0 0 rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.knp-submit:focus-visible {
	outline: 3px solid var(--knp-glow);
	outline-offset: 2px;
}

.knp-submit[disabled] {
	opacity: 0.6;
	cursor: default;
	transform: none;
}

.knp-consent {
	margin: 10px 2px 0;
	font-size: 11.5px;
	line-height: 1.8;
	color: var(--knp-muted);
	text-align: center;
}

.knp-message {
	margin: 10px 0 0;
	min-height: 20px;
	font-size: 13px;
	line-height: 1.8;
	text-align: center;
	color: var(--knp-muted);
}

.knp-message.is-error {
	color: var(--knp-error);
}

.knp-message.is-success {
	color: var(--knp-accent);
}

/* --- حالت موفقیت --- */

.knp-device.is-done .knp-keys,
.knp-device.is-done .knp-submit,
.knp-device.is-done .knp-name-field {
	display: none;
}

.knp-done-box {
	margin-top: 16px;
	padding: 22px 16px;
	text-align: center;
	border-radius: 16px;
	background: rgba(23, 163, 152, 0.12);
	border: 1px solid rgba(23, 163, 152, 0.35);
}

.knp-done-mark {
	display: block;
	width: 46px;
	height: 46px;
	margin: 0 auto 12px;
	border-radius: 50%;
	background: var(--knp-accent);
	color: #fff;
	font-size: 24px;
	line-height: 46px;
}

.knp-done-text {
	margin: 0;
	font-size: 14px;
	font-weight: 600;
	line-height: 1.9;
	color: var(--knp-accent);
}

/* --- تله ربات --- */

.knp-hp {
	position: absolute;
	left: -9999px;
	width: 1px;
	height: 1px;
	overflow: hidden;
}

.knp-wrap .screen-reader-text {
	position: absolute;
	width: 1px;
	height: 1px;
	overflow: hidden;
	clip: rect(1px, 1px, 1px, 1px);
	white-space: nowrap;
}

@media (max-width: 360px) {
	.knp-key {
		height: 48px;
		font-size: 20px;
	}
}

@media (prefers-reduced-motion: reduce) {
	.knp-display .is-next {
		animation: none;
	}

	.knp-key,
	.knp-submit {
		transition: none;
	}
}