* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', 'Segoe UI', 'Poppins', system-ui, sans-serif;
}

body {
    background: linear-gradient(145deg, #e9f0f5 0%, #d9e3ec 100%);
    min-height: 100vh;
    padding: 2rem 1.5rem;
}

.app-container {
    max-width: 1400px;
    margin: 0 auto;
}

.hero {
    text-align: center;
    margin-bottom: 2.5rem;
}

.hero h1 {
    font-size: 2.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #1A3E60, #2C5A7A);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    letter-spacing: -0.5px;
}

.hero p {
    color: #2c3e4e;
    background: rgba(255, 255, 240, 0.7);
    display: inline-block;
    padding: 0.3rem 1.2rem;
    border-radius: 40px;
    font-weight: 500;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.cards-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.card {
    flex: 1;
    min-width: 330px;

    background: rgba(255, 255, 255, 0.94);
    border-radius: 2rem;
    box-shadow: 0 20px 35px -12px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid rgba(255, 255, 255, 0.6);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 28px 40px -16px rgba(0, 0, 0, 0.25);
}

.card-header {
    background: #f5f9ff;
    padding: 1.2rem 1.8rem;
    border-bottom: 2px solid #cbdbe2;
}

.card-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e2f3e;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.badge {
    background: #2b7a4b20;
    color: #1c6e3e;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.7rem;
    border-radius: 30px;
}

.card-body {
    padding: 1.6rem 1.8rem 1.8rem;
}

.input-group {
    margin-bottom: 1.2rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.8rem;
}

.input-group label {
    width: 145px;
    font-weight: 600;
    color: #1f3b4c;
    font-size: 0.9rem;
}

.input-group input {
    flex: 1;
    padding: 0.7rem 1rem;
    border: 1.5px solid #cfdfed;
    border-radius: 1.2rem;
    background: white;
    font-size: 0.95rem;
    transition: all 0.2s;
    outline: none;
}

.input-group input:focus {
    border-color: #2f7ea5;
    box-shadow: 0 0 0 3px rgba(47, 126, 165, 0.2);
}

.btn-primary {
    background: #266d8c;
    color: white;
    border: none;
    padding: 0.7rem 1.5rem;
    border-radius: 2rem;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    margin-top: 0.5rem;
    transition: 0.2s;
}

.btn-primary:hover {
    background: #1a5772;
    transform: scale(0.97);
}

.log-box {
    background: #fefef7;
    border: 1px solid #e2e8f0;
    border-radius: 1.2rem;
    height: 210px;
    overflow-y: auto;
    padding: 0.8rem;
    margin-top: 1.4rem;
    font-family: 'SF Mono', monospace;
    font-size: 0.8rem;
    box-shadow: inset 0 1px 3px #0001;
}

.log-entry {
    padding: 0.4rem 0.2rem;
    border-bottom: 1px solid #eef2f8;
    color: #1e2f3e;
    word-break: break-word;
}

.log-error {
    color: #c7362b;
    background: #fff0f0;
    padding: 0.4rem 0.6rem;
    border-radius: 12px;
    margin: 0.3rem 0;
}

.log-success {
    color: #1b6b3c;
    border-left: 3px solid #2b9348;
    padding-left: 0.6rem;
}

.footer-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    background: rgba(255, 255, 245, 0.8);
    backdrop-filter: blur(8px);
    padding: 1rem 1.8rem;
    border-radius: 3rem;
    margin-top: 1rem;
}

.spec-text {
    font-size: 0.8rem;
    color: #3a5e74;
    font-weight: 500;
}

.btn-exit {
    background: #d94f30;
    color: white;
    border: none;
    padding: 0.6rem 2rem;
    border-radius: 2.5rem;
    font-weight: 700;
    cursor: pointer;
    transition: 0.15s;
}

.btn-exit:hover {
    background: #b63e22;
    transform: scale(0.96);
}

@media (max-width: 780px) {
    .input-group label {
        width: 100%;
    }

    .card-body {
        padding: 1.2rem;
    }
}

.btn-clear {
    background: #6c757d;
    color: white;
    border: none;
    padding: 0.4rem 1rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    margin-top: 0.5rem;
    width: 100%;
    transition: 0.2s;
}

.btn-clear:hover {
    background: #545b62;
    transform: scale(0.97);
}