/* Global variables */
:root {
    --primary-color: #029688;
    --primary-dark: #00796B;
    --bg-color: #F0F4F4;
    --panel-bg: rgba(255, 255, 255, 0.9);
    --text-color: #333;
    --border-color: #ddd;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --radius: 12px;
}

/* Reset & Box Sizing */
*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

/* Layout */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

header h1 {
    color: var(--primary-color);
    margin: 0 0 10px 0;
    font-size: 2rem;
}

header p {
    color: #666;
    margin: 0;
    font-size: 0.9rem;
}

.main-layout {
    display: flex;
    gap: 30px;
    flex-wrap: wrap-reverse;
    /* On mobile, controls flow below (reverse wrap puts preview on top if we want, but standard is controls below. layout is specific) */
}

/* On mobile, we want preview on top, controls below usually? 
   No, usually controls first for editing, or side-by-side. 
   Let's do wrap:
   Desktop: Controls | Preview
   Mobile: Preview (sticky?) | Controls or Controls | Preview
   Let's stick to standard flex-wrap. 
*/
.main-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: start;
}

@media (max-width: 768px) {
    .main-layout {
        grid-template-columns: 1fr;
    }

    .preview-panel {
        order: -1;
        /* Show preview first on mobile */
    }
}

/* Panels */
.controls-panel,
.preview-panel {
    background: var(--panel-bg);
    padding: 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
}

/* Sticky Preview (Mobile & Desktop) */
.preview-panel {
    position: sticky;
    top: 0;
    z-index: 100;
    /* Stay above controls on mobile scroll */
    align-self: start;
}

@media (min-width: 769px) {
    .preview-panel {
        top: 20px;
        /* Offset for desktop */
    }
}

.control-group {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.control-group:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

h2 {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 16px;
    border-left: 4px solid var(--primary-color);
    padding-left: 10px;
}

/* Template Grid */
.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 12px;
}

.template-btn {
    border: 2px solid transparent;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    background: #fff;
    padding: 0;
    transition: all 0.2s;
}

.template-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.template-btn.active {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(2, 150, 136, 0.2);
}

.template-btn img {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 1.65 / 1;
    /* Match card aspect ratio */
    object-fit: cover;
}

/* Inputs */
textarea {
    width: 100%;
    height: 100px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    resize: vertical;
    font-family: inherit;
    font-size: 1rem;
    box-sizing: border-box;
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(2, 150, 136, 0.1);
}

.char-count {
    text-align: right;
    font-size: 0.8rem;
    color: #999;
    margin-top: 4px;
}

/* Style Controls */
.style-row {
    margin-bottom: 16px;
}

.style-row label {
    display: block;
    font-weight: bold;
    font-size: 0.9rem;
    margin-bottom: 8px;
    color: #555;
}

select,
input[type="range"] {
    width: 70%;
    box-sizing: border-box;
}

/* Range slider - thumb-only interaction */
input[type="range"] {
    pointer-events: none;
}

input[type="range"]::-webkit-slider-thumb {
    pointer-events: auto;
}

input[type="range"]::-moz-range-thumb {
    pointer-events: auto;
}

select {
    padding: 8px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    width: 100%;
    /* Keep select at full width */
}

.checkbox-row {
    display: flex;
    gap: 20px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-weight: normal !important;
}

/* Color Picker */
.color-picker-row {
    display: flex;
    gap: 10px;
}

.color-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    transition: transform 0.2s;
    position: relative;
}

.color-btn:hover {
    transform: scale(1.1);
}

.color-btn.active::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
}

/* Preview Area */
.preview-container-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    background: #e0e0e0;
    padding: 20px;
    border-radius: 8px;
    overflow: hidden;
    /* Prevent overflow */
}

.capture-area {
    position: relative;
    width: 100%;
    max-width: 400px;
    /* Limit display size */
    aspect-ratio: 1.65 / 1;
    /* Japanese Business Card Ratio (91:55) */
    background: #fff;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    user-select: none;
    /* Prevent text selection during drag/preview */
    overflow: hidden;
}

.capture-area img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

.text-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    padding: 20px;
    /* Reduced specific padding, we control it in containers */
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

/* Base style for inner containers */
.message-container,
.gift-code-container {
    width: 90%;
    /* Default is transparent and no padding */
    display: flex;
    justify-content: center;
    align-items: center;
    white-space: pre-wrap;
    word-break: break-word;
    /* was break-week which isn't standard, break-word is safer */
    text-align: center;
    /* Default visual alignment */
}

/* Default Mode: Single text centered */
.message-container {
    /* Takes full height by default in flex if needed, but we want it centered */
    flex-grow: 1;
    /* Add white background for default mode too per user request */
    background: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    margin: 20px 0;
    /* Add margin to separate from edges slightly */
    width: 90%;
}

/* Gift Code Mode Styles */
.text-overlay.mode-gift {
    justify-content: space-between;
    /* Split top/bottom */
    padding: 30px;
    /* Outer spacing */
}

/* When in Gift Mode, add white background styles */
.text-overlay.mode-gift .message-container {
    flex-grow: 0;
    height: 60%;
    /* Occupy upper portion */
    background: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

.text-overlay.mode-gift .gift-code-container {
    height: 20%;
    /* Occupy lower portion */
    background: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.gift-code-text {
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 700;
    font-size: 16px;
    letter-spacing: 1px;
    color: #333;
    white-space: nowrap;
}

/* Action Button */
.primary-btn {
    width: 100%;
    padding: 16px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    box-shadow: 0 4px 10px rgba(2, 150, 136, 0.3);
}

.primary-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.primary-btn:active {
    transform: translateY(1px);
}


.preview-hint {
    text-align: center;
    font-size: 0.8rem;
    color: #888;
    margin-top: 10px;
}

/* Mobile Adjustments for Gift Code */
@media (max-width: 768px) {
    .text-overlay.mode-gift {
        padding: 15px;
        /* Reduce padding on mobile to prevent squashing */
    }

    .text-overlay.mode-gift .message-container {
        margin-bottom: 10px;
        padding: 10px;
    }

    .gift-code-text {
        font-size: 0.9em;
        /* Reduce font size on mobile */
        letter-spacing: 0.5px;
    }
}