/* css/style.css */
:root {
    --toss-blue: #3182f6;
    --toss-blue-hover: #1b64da;
    --bg-color: #f9fafb;
    --card-bg: #ffffff;
    --text-main: #191f28;
    --text-sub: #8b95a1;
    --border-color: #e5e8eb;
}

* { box-sizing: border-box; }

/* ===== Splash Screen ===== */
.splash {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: #fff;
    transition: opacity 0.5s ease;
}

.splash.fade-out {
    opacity: 0;
    pointer-events: none;
}

.splash-content {
    text-align: center;
    padding: 0 32px;
}

.splash-logo {
    font-size: 28px;
    font-weight: 800;
    color: var(--toss-blue);
    margin: 0 0 24px 0;
    letter-spacing: -0.5px;
    animation: logoIn 0.5s ease both;
}

.splash-hook {
    font-size: 22px;
    font-weight: 700;
    line-height: 1.5;
    margin: 0 0 10px 0;
    letter-spacing: -0.3px;
    color: var(--text-main);
    animation: textIn 0.5s ease 0.3s both;
}

.splash-sub {
    font-size: 15px;
    color: var(--text-sub);
    margin: 0;
    font-weight: 500;
    animation: textIn 0.5s ease 0.6s both;
}

@keyframes logoIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes textIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* App container hidden during splash */
.app-container.pre-splash {
    opacity: 0;
}

.app-container.reveal {
    animation: appReveal 0.5s ease 0.1s both;
}

@keyframes appReveal {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
}

.app-container {
    width: 100%;
    max-width: 480px;
    min-height: 100vh;
    background-color: var(--card-bg);
    padding: 32px 24px;
}

/* Header */
.header { margin-bottom: 28px; }
.logo { font-size: 16px; font-weight: 700; color: var(--toss-blue); margin: 0 0 8px 0; }
.title { font-size: 24px; font-weight: 700; line-height: 1.4; margin: 0 0 8px 0; letter-spacing: -0.5px; }
.subtitle { font-size: 15px; color: var(--text-sub); margin: 0; }

/* Tab Bar */
.tab-bar {
    display: flex;
    gap: 0;
    margin-bottom: 20px;
    background-color: var(--bg-color);
    border-radius: 12px;
    padding: 4px;
}

.tab {
    flex: 1;
    padding: 10px 0;
    border: none;
    background: none;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-sub);
    cursor: pointer;
    border-radius: 10px;
    transition: all 0.2s;
}

.tab.active {
    background-color: var(--card-bg);
    color: var(--text-main);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.tab:active { transform: scale(0.97); }

/* View management */
.view { animation: fadeIn 0.25s ease; }
.hidden { display: none !important; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Navigation row */
.nav-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.back-btn {
    background: none;
    border: none;
    color: var(--toss-blue);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    padding: 0;
}

.home-link {
    color: var(--text-sub);
    font-weight: 500;
}

/* ===== Step 1: Category Grid ===== */
.category-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.category-card {
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px 16px;
    cursor: pointer;
    transition: all 0.2s;
    background-color: var(--card-bg);
}

.category-card:hover { border-color: var(--toss-blue); }
.category-card:active { transform: scale(0.97); }

.category-card.other {
    grid-column: 1 / -1;
    background-color: #f0f6ff;
    border-color: #c9deff;
    text-align: center;
}

.category-card .cat-title {
    font-size: 16px;
    font-weight: 700;
    margin: 0 0 4px 0;
    color: var(--text-main);
}

.category-card .cat-desc {
    font-size: 13px;
    color: var(--text-sub);
    margin: 0;
}

.category-card.other .cat-title { color: var(--toss-blue); }

/* Help Banner */
.help-banner {
    margin-top: 16px;
    padding: 16px 20px;
    background-color: #f8f9fa;
    border-radius: 14px;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
}

.help-banner:active { transform: scale(0.98); }

.help-banner-icon {
    font-size: 20px;
    margin: 0 0 4px 0;
}

.help-banner-text {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-main);
    margin: 0 0 4px 0;
}

.help-banner-sub {
    font-size: 12px;
    color: var(--text-sub);
    margin: 0;
    line-height: 1.4;
}

/* ===== Step 2: Recipe List ===== */
.view-title {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 16px 0;
}

.recipe-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.recipe-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 18px 16px;
    cursor: pointer;
    transition: all 0.2s;
    background-color: var(--card-bg);
}

.recipe-item:hover { border-color: var(--toss-blue); }
.recipe-item:active { transform: scale(0.98); }

.recipe-item .recipe-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
}

.recipe-item .arrow {
    color: var(--text-sub);
    font-size: 16px;
}

/* ===== Step 3: Input Form ===== */
.recipe-card {
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 24px;
}

.recipe-name {
    font-size: 17px;
    font-weight: 700;
    color: var(--toss-blue);
    margin: 0 0 16px 0;
}

/* AI Recommendation */
.ai-recommend {
    margin-bottom: 16px;
}

.ai-recommend-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-sub);
    margin-bottom: 8px;
}

.ai-recommend-sub {
    font-weight: 400;
    color: #adb5bd;
    margin-left: 4px;
}

.ai-chips {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ai-chip {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 14px 16px;
    border-radius: 12px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    transition: all 0.15s;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

.ai-chip:active {
    transform: scale(0.97);
    background-color: #f0f2f4;
}

.ai-chip.pick {
    background-color: #f0f6ff;
    border-color: #c9deff;
}

.ai-chip.pick:active {
    background-color: #e0edff;
}

.ai-chip-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ai-chip-name {
    font-weight: 700;
    font-size: 15px;
    color: var(--text-main);
}

.ai-chip.pick .ai-chip-name { color: var(--toss-blue); }

.ai-chip-tags {
    display: flex;
    gap: 5px;
    align-items: center;
}

.ai-chip-desc {
    color: var(--text-sub);
    font-size: 13px;
    line-height: 1.4;
}

.ai-chip-badge {
    font-size: 10px;
    font-weight: 700;
    color: #fff;
    background-color: var(--toss-blue);
    padding: 2px 7px;
    border-radius: 5px;
    white-space: nowrap;
}

.ai-chip-free {
    font-size: 10px;
    font-weight: 600;
    color: #2ecc71;
    border: 1px solid #2ecc71;
    padding: 1px 6px;
    border-radius: 5px;
    white-space: nowrap;
}

.ai-chip-open {
    font-size: 12px;
    font-weight: 600;
    color: var(--toss-blue);
    margin-top: 2px;
}

/* Input Guide Table */
.input-guide {
    margin-bottom: 14px;
}

.input-guide:empty {
    display: none;
}

.input-guide-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--toss-blue);
    margin: 0 0 8px 0;
}

.input-guide-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    background-color: var(--bg-color);
    border-radius: 10px;
    overflow: hidden;
}

.input-guide-table th {
    text-align: left;
    padding: 7px 10px;
    background-color: #eef3f8;
    color: var(--text-sub);
    font-weight: 600;
    font-size: 11px;
}

.input-guide-table td {
    padding: 7px 10px;
    border-top: 1px solid var(--border-color);
    line-height: 1.4;
}

.input-guide-table td:first-child {
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
    width: 35%;
}

.input-guide-table td:last-child {
    color: var(--text-sub);
    font-size: 12px;
}

.form-group { margin-bottom: 16px; }
label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; color: #333d4b; }

textarea {
    width: 100%;
    padding: 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 15px;
    font-family: inherit;
    resize: vertical;
    min-height: 100px;
    background-color: var(--bg-color);
    outline: none;
    transition: border-color 0.2s;
}

textarea:focus { border-color: var(--toss-blue); background-color: #fff; }

.action-btn {
    width: 100%;
    padding: 16px;
    background-color: var(--toss-blue);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
}

.action-btn:disabled { background-color: var(--text-sub); cursor: not-allowed; }

/* Result */
.result-container { margin-top: 24px; }
.result-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.result-title { font-size: 15px; font-weight: 700; color: var(--toss-blue); }
.copy-btn {
    background-color: #f2f4f6;
    color: #4e5968;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
}

.result-box {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    font-size: 15px;
    line-height: 1.6;
    white-space: pre-wrap;
    min-height: 100px;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background-color: #191f28;
    color: #fff;
    padding: 12px 24px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
    z-index: 1000;
    max-width: 90%;
    text-align: center;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Share CTA */
.share-cta {
    margin-top: 16px;
    padding: 12px;
    text-align: center;
    font-size: 13px;
    color: var(--toss-blue);
    font-weight: 600;
    background-color: #e8f3ff;
    border-radius: 10px;
}

/* Home button */
.home-btn {
    width: 100%;
    margin-top: 12px;
    padding: 14px;
    background-color: var(--bg-color);
    color: var(--text-sub);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.home-btn:active { transform: scale(0.98); }

/* Typing cursor */
.cursor::after { content: '|'; animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* Bilingual result */
.result-lang-badge {
    font-size: 11px;
    font-weight: 700;
    color: #fff;
    background-color: var(--toss-blue);
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: 6px;
    vertical-align: middle;
}

.ko-toggle-btn {
    display: block;
    width: 100%;
    margin-top: 10px;
    padding: 10px;
    background: none;
    border: 1px dashed var(--border-color);
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-sub);
    cursor: pointer;
    transition: all 0.2s;
}

.ko-toggle-btn:active {
    background-color: var(--bg-color);
}

.ko-translation-box {
    margin-top: 10px;
    background-color: #f0f6ff;
    border: 1px solid #c9deff;
    border-radius: 12px;
    padding: 20px;
    font-size: 14px;
    line-height: 1.6;
    white-space: pre-wrap;
    color: #4e5968;
}

/* ===== Tips & Growth Section ===== */
.tips-section {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.tips-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-main);
    margin: 0 0 14px 0;
}

.tip-card {
    padding: 16px;
    margin-bottom: 10px;
    background-color: var(--bg-color);
    border-radius: 12px;
}

.tip-number {
    font-size: 12px;
    font-weight: 800;
    color: var(--toss-blue);
    margin: 0 0 4px 0;
}

.tip-heading {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-main);
    margin: 0 0 6px 0;
}

.tip-body {
    font-size: 13px;
    color: var(--text-sub);
    margin: 0;
    line-height: 1.5;
}

.growth-card {
    padding: 16px;
    margin-bottom: 10px;
    background-color: #f0f6ff;
    border-radius: 12px;
    border-left: 3px solid var(--toss-blue);
}

.growth-step {
    font-size: 11px;
    font-weight: 800;
    color: var(--toss-blue);
    margin: 0 0 4px 0;
    text-transform: uppercase;
}

.growth-heading {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-main);
    margin: 0 0 6px 0;
}

.growth-body {
    font-size: 13px;
    color: #4e5968;
    margin: 0;
    line-height: 1.5;
}

/* AI Compare Cards */
.ai-compare-card {
    padding: 16px;
    margin-bottom: 10px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.ai-compare-name {
    font-size: 16px;
    font-weight: 800;
    margin: 0 0 6px 0;
}

.ai-compare-desc {
    font-size: 13px;
    color: var(--text-sub);
    margin: 0 0 10px 0;
    line-height: 1.5;
}

.ai-compare-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.ai-tag {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 6px;
    background-color: var(--bg-color);
    color: var(--text-sub);
}

.ai-tag.good {
    background-color: #e8f3ff;
    color: var(--toss-blue);
}

.ai-tag.free {
    background-color: #e6f9f0;
    color: #0d9e5f;
}

/* ===== AI Directory Accordion ===== */
.ai-directory-section {
    margin-top: 28px;
}

.ai-directory-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-main);
    margin: 0 0 6px 0;
}

.ai-directory-sub {
    font-size: 13px;
    color: var(--text-sub);
    margin: 0 0 14px 0;
}

.ai-accordion {
    border: 1px solid var(--border-color);
    border-radius: 14px;
    overflow: hidden;
    margin-bottom: 10px;
}

.ai-accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background-color: var(--card-bg);
    cursor: pointer;
    transition: background-color 0.2s;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

.ai-accordion-header:active {
    background-color: var(--bg-color);
}

.ai-accordion-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.ai-accordion-emoji {
    font-size: 20px;
    width: 28px;
    text-align: center;
    flex-shrink: 0;
}

.ai-accordion-label {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-main);
}

.ai-accordion-count {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-sub);
    margin-left: 6px;
}

.ai-accordion-arrow {
    font-size: 14px;
    color: var(--text-sub);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.ai-accordion.open .ai-accordion-arrow {
    transform: rotate(180deg);
}

.ai-accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    background-color: var(--bg-color);
}

.ai-accordion.open .ai-accordion-body {
    max-height: 2000px;
}

.ai-accordion-inner {
    padding: 4px 14px 14px;
}

.ai-tool-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 14px;
    margin-bottom: 8px;
}

.ai-tool-card:last-child {
    margin-bottom: 0;
}

.ai-tool-top {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.ai-tool-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-main);
}

.ai-tool-badge-paid {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
    background-color: #fff3e0;
    color: #e65100;
}

.ai-tool-badge-free {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
    background-color: #e6f9f0;
    color: #0d9e5f;
}

.ai-tool-badge-freemium {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
    background-color: #e8f3ff;
    color: var(--toss-blue);
}

.ai-tool-desc {
    font-size: 13px;
    color: var(--text-sub);
    line-height: 1.5;
    margin: 0 0 8px 0;
}

.ai-tool-highlight {
    font-size: 12px;
    color: var(--text-main);
    font-weight: 600;
    line-height: 1.5;
    margin: 0 0 8px 0;
    padding: 8px 10px;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.ai-tool-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.ai-tool-tag {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 6px;
    background-color: var(--bg-color);
    color: var(--text-sub);
}

.ai-tool-link {
    display: inline-flex;
    align-items: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--toss-blue);
    text-decoration: none;
    margin-top: 8px;
    padding: 5px 10px;
    background-color: #e8f3ff;
    border-radius: 8px;
    transition: background-color 0.2s;
}

.ai-tool-link:active {
    background-color: #d0e5ff;
}

/* ===== Footer ===== */
.app-footer {
    margin-top: 48px;
    padding: 24px 0 16px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-brand {
    font-size: 13px;
    font-weight: 700;
    color: var(--toss-blue);
    margin-bottom: 10px;
}

.footer-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.footer-links a {
    font-size: 12px;
    color: var(--text-sub);
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--toss-blue);
}

.footer-dot {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background-color: var(--text-sub);
    display: inline-block;
}

.footer-copy {
    font-size: 11px;
    color: #c4c9d1;
    margin: 0;
}