/* ============================================================
   Mr Khang AI — Trình làm thơ. Giao diện toàn màn hình.
   Mọi thứ được giới hạn trong .mkai-app để không đụng theme.
   ============================================================ */

.mkai-app {
	--mk-ink: #f4ede0;
	--mk-ink-soft: rgba(244, 237, 224, 0.66);
	--mk-gold: #e3b04b;
	--mk-cinnabar: #d9533b;
	--mk-jade: #5fb89a;
	--mk-bg-0: #0e1117;
	--mk-bg-1: #161b27;
	--mk-line: rgba(227, 176, 75, 0.22);
	--mk-glass: rgba(255, 255, 255, 0.045);
	--mk-radius: 20px;

	box-sizing: border-box;
	position: relative;
	width: 100vw;
	margin-left: calc(50% - 50vw);
	min-height: 100vh;
	padding: clamp(16px, 3vw, 40px);
	overflow: hidden;
	background:
		radial-gradient(1100px 700px at 78% -10%, #2a2140 0%, transparent 55%),
		radial-gradient(900px 600px at 8% 110%, #16303a 0%, transparent 55%),
		linear-gradient(160deg, var(--mk-bg-0), var(--mk-bg-1));
	color: var(--mk-ink);
	font-family: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif;
	-webkit-font-smoothing: antialiased;
	line-height: 1.6;
}

.mkai-app *,
.mkai-app *::before,
.mkai-app *::after { box-sizing: border-box; }

/* --- Hậu cảnh: các quầng sáng trôi --- */
.mkai-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.mkai-orb {
	position: absolute; border-radius: 50%; filter: blur(70px); opacity: 0.5;
	animation: mkai-float 18s ease-in-out infinite;
}
.mkai-orb-1 { width: 420px; height: 420px; top: -80px; left: -60px; background: #6d4bd9; }
.mkai-orb-2 { width: 380px; height: 380px; bottom: -120px; right: -40px; background: #2f8f7a; animation-delay: -6s; }
.mkai-orb-3 { width: 300px; height: 300px; top: 40%; left: 55%; background: #d9533b; opacity: 0.28; animation-delay: -11s; }
@keyframes mkai-float {
	0%, 100% { transform: translate(0, 0) scale(1); }
	50% { transform: translate(30px, -40px) scale(1.08); }
}

/* --- Bố cục chính --- */
.mkai-header,
.mkai-main,
.mkai-footer { position: relative; z-index: 1; max-width: 1240px; margin-inline: auto; }

.mkai-header { padding: 8px 4px 22px; }
.mkai-brand { display: flex; align-items: center; gap: 16px; }
.mkai-quill {
	font-size: 38px; line-height: 1;
	filter: drop-shadow(0 4px 14px rgba(227, 176, 75, 0.45));
	animation: mkai-bob 4s ease-in-out infinite;
}
@keyframes mkai-bob { 0%,100% { transform: translateY(0) rotate(-4deg); } 50% { transform: translateY(-6px) rotate(4deg); } }
.mkai-title {
	margin: 0; font-size: clamp(26px, 4vw, 40px); font-weight: 700; letter-spacing: -0.5px;
	background: linear-gradient(92deg, var(--mk-gold), #f6d98c 55%, var(--mk-cinnabar));
	-webkit-background-clip: text; background-clip: text; color: transparent;
}
.mkai-tagline { margin: 2px 0 0; font-size: 14px; color: var(--mk-ink-soft); }

.mkai-main {
	display: grid;
	grid-template-columns: minmax(320px, 400px) 1fr;
	gap: clamp(16px, 2vw, 28px);
	align-items: start;
}

/* --- Panel kính mờ --- */
.mkai-panel {
	background: var(--mk-glass);
	border: 1px solid rgba(255, 255, 255, 0.08);
	border-radius: var(--mk-radius);
	padding: clamp(18px, 2vw, 26px);
	backdrop-filter: blur(14px);
	-webkit-backdrop-filter: blur(14px);
	box-shadow: 0 24px 60px -30px rgba(0, 0, 0, 0.7);
}

.mkai-controls { position: sticky; top: 20px; }

.mkai-field { margin-bottom: 16px; }
.mkai-field > label {
	display: block; margin-bottom: 7px;
	font-size: 12.5px; font-weight: 600; letter-spacing: 0.4px; text-transform: uppercase;
	color: var(--mk-gold);
}
.mkai-app textarea,
.mkai-app select {
	width: 100%; padding: 12px 14px;
	background: rgba(8, 11, 18, 0.6);
	border: 1px solid rgba(255, 255, 255, 0.1);
	border-radius: 12px;
	color: var(--mk-ink);
	font-family: inherit; font-size: 15px;
	transition: border-color 0.2s, box-shadow 0.2s;
	appearance: none; -webkit-appearance: none;
}
.mkai-app textarea { resize: vertical; min-height: 78px; line-height: 1.5; }
.mkai-app select {
	background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23e3b04b' stroke-width='2.5'><path d='M6 9l6 6 6-6'/></svg>");
	background-repeat: no-repeat; background-position: right 14px center;
	padding-right: 38px; cursor: pointer;
}
.mkai-app select option { background: #161b27; color: var(--mk-ink); }
.mkai-app textarea:focus,
.mkai-app select:focus {
	outline: none; border-color: var(--mk-gold);
	box-shadow: 0 0 0 3px rgba(227, 176, 75, 0.18);
}
.mkai-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 14px; }
@media (max-width: 480px) { .mkai-grid { grid-template-columns: 1fr; } }

/* --- Nút sáng tác với hiệu ứng mực loang --- */
.mkai-btn {
	position: relative; width: 100%; margin-top: 6px;
	padding: 15px 20px; border: none; border-radius: 14px; cursor: pointer;
	font-family: inherit; font-size: 16.5px; font-weight: 700; letter-spacing: 0.3px;
	color: #1a1206; overflow: hidden;
	background: linear-gradient(95deg, var(--mk-gold), #f2cd78);
	box-shadow: 0 14px 30px -12px rgba(227, 176, 75, 0.7);
	transition: transform 0.15s, box-shadow 0.2s;
}
.mkai-btn:hover { transform: translateY(-2px); box-shadow: 0 18px 38px -12px rgba(227, 176, 75, 0.85); }
.mkai-btn:active { transform: translateY(0); }
.mkai-btn:disabled { cursor: progress; filter: saturate(0.6) brightness(0.85); }
.mkai-btn-text { position: relative; z-index: 2; }
.mkai-btn .mkai-btn-ink {
	position: absolute; z-index: 1; top: 50%; left: 50%; width: 0; height: 0; border-radius: 50%;
	background: rgba(217, 83, 59, 0.55); transform: translate(-50%, -50%);
}
.mkai-btn.is-busy .mkai-btn-ink { animation: mkai-inkspread 1.6s ease-out infinite; }
@keyframes mkai-inkspread {
	0% { width: 0; height: 0; opacity: 0.6; }
	100% { width: 420px; height: 420px; opacity: 0; }
}

/* --- Sân khấu kết quả --- */
.mkai-stage { min-height: 60vh; display: flex; flex-direction: column; justify-content: center; }

.mkai-empty { text-align: center; padding: 40px 20px; color: var(--mk-ink-soft); }
.mkai-empty-icon { font-size: 52px; margin-bottom: 12px; opacity: 0.85; }
.mkai-empty p { margin: 0 auto; max-width: 360px; font-size: 16px; }
.mkai-err { color: #ff9e8f !important; font-weight: 600; }

/* --- Hiệu ứng đang sáng tác: lọ mực + bút + giọt mực --- */
.mkai-loading { text-align: center; padding: 30px 10px; }
.mkai-inkpot { position: relative; width: 120px; height: 120px; margin: 0 auto 26px; }
.mkai-pen {
	position: absolute; left: 50%; top: -6px; width: 8px; height: 70px;
	background: linear-gradient(180deg, #f2cd78, #b07a1e);
	border-radius: 4px; transform-origin: bottom center;
	transform: translateX(-50%) rotate(-18deg);
	animation: mkai-write 1.8s ease-in-out infinite;
	box-shadow: 0 0 12px rgba(227, 176, 75, 0.6);
}
.mkai-pen::after {
	content: ''; position: absolute; bottom: -10px; left: 50%; transform: translateX(-50%);
	border-left: 5px solid transparent; border-right: 5px solid transparent;
	border-top: 12px solid #1a1206;
}
@keyframes mkai-write {
	0%, 100% { transform: translateX(-50%) rotate(-18deg); }
	50% { transform: translateX(-50%) rotate(14deg); }
}
.mkai-drop {
	position: absolute; left: 50%; bottom: 22px; width: 12px; height: 12px;
	margin-left: -6px; border-radius: 50% 50% 50% 0;
	background: var(--mk-cinnabar); transform: rotate(45deg);
	animation: mkai-drip 1.8s ease-in infinite;
}
@keyframes mkai-drip {
	0% { transform: translateY(0) rotate(45deg) scale(0.6); opacity: 0; }
	40% { opacity: 1; }
	100% { transform: translateY(26px) rotate(45deg) scale(1); opacity: 0; }
}
.mkai-ripple {
	position: absolute; left: 50%; bottom: 10px; width: 60px; height: 16px;
	margin-left: -30px; border-radius: 50%;
	border: 2px solid rgba(217, 83, 59, 0.5);
	animation: mkai-ripple 1.8s ease-out infinite;
}
@keyframes mkai-ripple {
	0% { transform: scale(0.4); opacity: 0.8; }
	100% { transform: scale(1.3); opacity: 0; }
}
.mkai-loading-lines { display: flex; flex-direction: column; gap: 9px; max-width: 280px; margin: 0 auto 18px; }
.mkai-loading-lines span {
	height: 10px; border-radius: 6px;
	background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(227,176,75,0.28) 50%, rgba(255,255,255,0.05) 75%);
	background-size: 200% 100%; animation: mkai-shimmer 1.6s linear infinite;
}
.mkai-loading-lines span:nth-child(1) { width: 90%; }
.mkai-loading-lines span:nth-child(2) { width: 70%; align-self: center; }
.mkai-loading-lines span:nth-child(3) { width: 80%; }
@keyframes mkai-shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.mkai-loading-text { font-size: 15px; color: var(--mk-gold); transition: opacity 0.25s; font-style: italic; }

/* --- Bài thơ --- */
.mkai-poem {
	border-radius: 16px; padding: clamp(26px, 4vw, 46px) clamp(20px, 4vw, 52px);
	box-shadow: 0 30px 70px -28px rgba(0, 0, 0, 0.75);
	position: relative; overflow: hidden;
	animation: mkai-paper-in 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes mkai-paper-in {
	from { opacity: 0; transform: translateY(20px) scale(0.98); }
	to { opacity: 1; transform: translateY(0) scale(1); }
}
.mkai-poem-inner { position: relative; z-index: 1; text-align: center; }
.mkai-poem-title {
	margin: 0 0 22px; font-family: 'Lora', Georgia, serif; font-style: italic;
	font-size: clamp(24px, 3.4vw, 34px); font-weight: 600; line-height: 1.3;
}
.mkai-poem-body {
	font-family: 'Lora', Georgia, serif; font-size: clamp(17px, 2.1vw, 21px); line-height: 2;
}
.mkai-line { opacity: 0; animation: mkai-line-in 0.6s ease forwards; }
.mkai-line-gap { height: 0.7em; }
@keyframes mkai-line-in {
	from { opacity: 0; transform: translateY(10px); filter: blur(3px); }
	to { opacity: 1; transform: translateY(0); filter: blur(0); }
}
.mkai-poem-title.mkai-reveal { animation: mkai-line-in 0.7s ease both; }
.mkai-poem-author {
	margin-top: 28px; font-family: 'Lora', serif; font-style: italic; font-weight: 600;
	text-align: right; font-size: clamp(15px, 2vw, 18px); opacity: 0.9;
	animation: mkai-line-in 0.6s ease 0.4s both;
}

/* --- Các nền bài thơ --- */
.mkai-paper-parchment { background:
	radial-gradient(circle at 30% 20%, #fff7e6, transparent 60%),
	linear-gradient(135deg, #fbefd3, #f0dcae); color: #4a2f17; }
.mkai-paper-parchment .mkai-poem-title { color: #7a3b12; }
.mkai-paper-parchment .mkai-poem-author { color: #7a3b12; }

.mkai-paper-silk { background:
	radial-gradient(circle at 70% 10%, #fff0f5, transparent 55%),
	linear-gradient(135deg, #fbe3ec, #f4c4d6); color: #5a2237; }
.mkai-paper-silk .mkai-poem-title,
.mkai-paper-silk .mkai-poem-author { color: #a1245b; }

.mkai-paper-ink { background:
	radial-gradient(circle at 25% 15%, #2c3242, transparent 60%),
	linear-gradient(150deg, #1f2430, #11141c); color: #e6e8ef; }
.mkai-paper-ink .mkai-poem-title,
.mkai-paper-ink .mkai-poem-author { color: #e8c36b; }

.mkai-paper-jade { background:
	radial-gradient(circle at 30% 20%, #f1fbf4, transparent 55%),
	linear-gradient(135deg, #e2f1e7, #bfe2cc); color: #1e3d2c; }
.mkai-paper-jade .mkai-poem-title,
.mkai-paper-jade .mkai-poem-author { color: #155e3a; }

.mkai-paper-dawn { background:
	radial-gradient(circle at 50% 0%, #fff4e3, transparent 55%),
	linear-gradient(160deg, #ffe9cc, #ffcf9e); color: #5a3520; }
.mkai-paper-dawn .mkai-poem-title,
.mkai-paper-dawn .mkai-poem-author { color: #c6562b; }

.mkai-paper-midnight { background:
	radial-gradient(circle at 75% 12%, #20305a, transparent 55%),
	linear-gradient(150deg, #141a2e, #0c1020); color: #dce3f2; }
.mkai-paper-midnight .mkai-poem-title,
.mkai-paper-midnight .mkai-poem-author { color: #8ab4f8; }
.mkai-paper-midnight::after {
	content: ''; position: absolute; inset: 0;
	background-image: radial-gradient(1.5px 1.5px at 20% 30%, #fff, transparent), radial-gradient(1.5px 1.5px at 80% 60%, #fff, transparent), radial-gradient(1px 1px at 55% 80%, #fff, transparent);
	opacity: 0.4;
}

/* --- Hành động --- */
.mkai-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; justify-content: center; }
.mkai-chip {
	padding: 10px 18px; border-radius: 999px; cursor: pointer;
	font-family: inherit; font-size: 14.5px; font-weight: 600;
	color: var(--mk-ink); background: rgba(255, 255, 255, 0.06);
	border: 1px solid rgba(255, 255, 255, 0.14);
	transition: background 0.2s, transform 0.15s, border-color 0.2s;
}
.mkai-chip:hover { background: rgba(227, 176, 75, 0.16); border-color: var(--mk-gold); transform: translateY(-2px); }

/* --- Footer --- */
.mkai-footer { text-align: center; padding: 26px 0 6px; color: var(--mk-ink-soft); font-size: 13.5px; }
.mkai-footer strong { color: var(--mk-gold); }

/* --- Rung khi thiếu chủ đề --- */
.mkai-shake { animation: mkai-shake 0.4s; border-color: var(--mk-cinnabar) !important; }
@keyframes mkai-shake {
	0%, 100% { transform: translateX(0); }
	20%, 60% { transform: translateX(-7px); }
	40%, 80% { transform: translateX(7px); }
}

/* --- Responsive --- */
@media (max-width: 900px) {
	.mkai-main { grid-template-columns: 1fr; }
	.mkai-controls { position: static; }
	.mkai-stage { min-height: 44vh; }
}
@media (max-width: 480px) {
	.mkai-app { padding: 14px; }
	.mkai-brand { gap: 12px; }
}

/* Giảm chuyển động nếu người dùng yêu cầu */
@media (prefers-reduced-motion: reduce) {
	.mkai-app *,
	.mkai-app *::before,
	.mkai-app *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; }
	.mkai-line { opacity: 1 !important; }
}