:root {
    --bg-color: #f0f4f8;
    --text-color: #2d3436;
    --container-bg: rgba(255, 255, 255, 0.85);
    --primary-color: #6c5ce7;
    --primary-hover: #a29bfe;
    --number-bg: #ffffff;
    --number-border: rgba(108, 92, 231, 0.2);
    --card-shadow: 0 15px 35px rgba(108, 92, 231, 0.15);
    --divider-color: rgba(108, 92, 231, 0.1);
    --accent-glow: rgba(108, 92, 231, 0.2);
}

body.dark-mode {
    --bg-color: #0f0c29;
    --text-color: #f1f2f6;
    --container-bg: rgba(30, 30, 60, 0.7);
    --primary-color: #a29bfe;
    --primary-hover: #efeeff;
    --number-bg: rgba(255, 255, 255, 0.08);
    --number-border: rgba(162, 155, 254, 0.4);
    --card-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    --divider-color: rgba(162, 155, 254, 0.2);
    --accent-glow: rgba(162, 155, 254, 0.4);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    background: var(--bg-color);
    background: linear-gradient(135deg, var(--bg-color) 0%, #d1d8e0 100%) fixed;
    color: var(--text-color);
    line-height: 1.6;
    transition: all 0.5s ease;
    min-height: 100vh;
}

body.dark-mode {
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%) fixed;
}

header {
    background-color: var(--container-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--number-border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 25px;
}

.logo-group {
    display: flex;
    align-items: baseline;
    gap: 15px;
}

.weather-widget {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
    background: var(--number-bg);
    padding: 5px 12px;
    border-radius: 20px;
    border: 1px solid var(--number-border);
    box-shadow: 0 2px 8px var(--accent-glow);
}

#weather-icon {
    font-size: 1.2rem;
}

.controls {
    display: flex;
    gap: 12px;
}

.controls button {
    padding: 10px 20px;
    border-radius: 14px;
    border: 1px solid var(--number-border);
    background: var(--number-bg);
    color: var(--text-color);
    cursor: pointer;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.controls button:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 6px 15px var(--accent-glow);
    border-color: var(--primary-color);
}

.logo {
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    color: var(--primary-color);
    text-shadow: 0 0 20px var(--accent-glow);
}

.stock-ticker {
    width: 100%;
    background: rgba(108, 92, 231, 0.1);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-bottom: 1px solid var(--number-border);
    overflow: hidden;
    height: 40px;
    display: flex;
    align-items: center;
}

.ticker-wrapper {
    white-space: nowrap;
    display: inline-block;
    animation: ticker 90s linear infinite;
    padding-left: 100%;
}

.ticker-item {
    display: inline-block;
    padding: 0 20px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-color);
}

@keyframes ticker {
    0% { transform: translate3d(0, 0, 0); }
    100% { transform: translate3d(-100%, 0, 0); }
}

.ticker-wrapper:hover {
    animation-play-state: paused;
}

.container {
    max-width: 850px;
    margin: 4rem auto;
    padding: 0 20px;
}

.hero-section {
    text-align: center;
    margin-bottom: 5rem;
}

.hero-section h1 {
    font-size: 3.2rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), #fd79a8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.generator-card {
    background-color: var(--container-bg);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    padding: 3rem 2rem;
    border-radius: 50px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--number-border);
    text-align: center;
    margin-bottom: 5rem;
}

.input-section {
    margin-bottom: 1.8rem;
}

.input-section h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.numbers {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 1.8rem;
    align-items: center;
}

.numbers-row {
    display: flex;
    justify-content: center;
    gap: 10px;
    width: 100%;
}

.number, .number-placeholder {
    width: 50px;
    height: 50px;
    border-radius: 15px;
    background-color: var(--number-bg);
    border: 2px solid var(--number-border);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.3rem;
    font-weight: 700;
    box-shadow: 0 4px 12px var(--accent-glow);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.main-btn {
    padding: 16px 50px;
    font-size: 1.2rem;
    font-weight: 800;
    color: white;
    background: linear-gradient(135deg, var(--primary-color), #a29bfe);
    border: none;
    border-radius: 20px;
    cursor: pointer;
    box-shadow: 0 10px 20px var(--accent-glow);
    transition: all 0.3s ease;
}

.main-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 30px var(--accent-glow);
    filter: brightness(1.1);
}

.content-section {
    margin: 5rem 0;
    background: var(--container-bg);
    backdrop-filter: blur(15px);
    padding: 3.5rem;
    border-radius: 40px;
    border: 1px solid var(--number-border);
}

.content-section h2 { margin-bottom: 1.8rem; color: var(--primary-color); font-size: 2rem; }
.content-section p { margin-bottom: 1.4rem; opacity: 0.85; font-size: 1.1rem; }
.content-section ul { margin-left: 1.5rem; margin-bottom: 1rem; }
.content-section li { margin-bottom: 1rem; }

.divider {
    border: 0;
    border-top: 2px solid var(--divider-color);
    margin: 6rem 0;
}

.contact-form {
    background-color: var(--container-bg);
    padding: 4rem;
    border-radius: 40px;
    border: 1px solid var(--number-border);
    box-shadow: var(--card-shadow);
}

.form-group label { display: block; margin-bottom: 0.8rem; font-weight: 700; color: var(--primary-color); font-size: 1.1rem; }
.form-group input, .form-group textarea {
    width: 100%;
    padding: 18px;
    border: 2px solid var(--number-border);
    border-radius: 18px;
    background-color: var(--number-bg);
    color: var(--text-color);
    font-size: 1.05rem;
    transition: all 0.3s;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 20px var(--accent-glow);
}

.submit-btn {
    width: 100%;
    padding: 20px;
    background: linear-gradient(135deg, #2d3436, #4b4b4b);
    color: white;
    border: none;
    border-radius: 18px;
    font-weight: 700;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s;
}

body.dark-mode .submit-btn {
    background: linear-gradient(135deg, var(--primary-color), #6c5ce7);
}

.saju-info {
    background: linear-gradient(135deg, var(--number-bg), var(--accent-glow));
    padding: 2rem;
    border-radius: 24px;
    margin-bottom: 1.8rem;
    border: 1px solid var(--number-border);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.zodiac-icon {
    font-size: 64px;
    line-height: 1;
    margin-bottom: 5px;
}

.birth-inputs {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.birth-inputs input {
    width: 90px;
    padding: 12px;
    border: 2px solid var(--number-border);
    border-radius: 15px;
    background-color: var(--number-bg);
    color: var(--text-color);
    text-align: center;
    font-size: 1.1rem;
    font-weight: 700;
}

#birth-year {
    width: 135px;
}

.fortune-container {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--divider-color);
    text-align: left;
}

.fortune-container h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
    font-size: 2rem;
    font-weight: 800;
}

.fortune-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

@media (max-width: 600px) {
    .fortune-grid {
        grid-template-columns: 1fr;
    }
}

.fortune-item {
    background: var(--number-bg);
    padding: 1.5rem;
    border-radius: 20px;
    border: 1px solid var(--number-border);
    transition: all 0.3s ease;
}

.fortune-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px var(--accent-glow);
}

.fortune-icon {
    font-size: 1.8rem;
    margin-bottom: 0.8rem;
}

.fortune-item h4 {
    margin-bottom: 0.6rem;
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: 700;
}

.fortune-item p {
    font-size: 0.95rem;
    line-height: 1.5;
    opacity: 0.9;
}

footer {
    padding: 6rem 0;
    text-align: center;
    border-top: 1px solid var(--number-border);
    background-color: var(--container-bg);
}

.footer-links { margin-bottom: 1.5rem; }
.footer-links a {
    color: var(--primary-color);
    text-decoration: none;
    margin: 0 20px;
    font-weight: 700;
}