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

:root {
    --primary: #0066ff; /* Trust Blue */
    --primary-dark: #004ec2;
    --bg: #f4f7fa; /* Light Clinical Gray */
    --white: #ffffff;
    --text-dark: #1a1a1a;
    --text-gray: #666666;
    --success: #28a745;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #e0e5ec; /* Background behind the "phone" */
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: var(--text-dark);
}

/* PHONE CONTAINER (Simulates Mobile App on Desktop) */
.app-container {
    width: 100%;
    max-width: 400px; /* Mobile Width */
    height: 800px;
    background-color: var(--white);
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
}

/* HEADER */
.app-header {
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--white);
    border-bottom: 1px solid #f0f0f0;
}

.logo {
    font-weight: 700;
    font-size: 1.2rem;
}

.blue {
    color: var(--primary);
}

.user-profile {
    width: 35px;
    height: 35px;
    background: var(--bg);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

/* PROGRESS BAR */
.progress-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 0;
}

.step {
    width: 25px;
    height: 25px;
    background: #eee;
    color: #999;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
}

    .step.active {
        background: var(--primary);
        color: white;
    }

.line {
    width: 30px;
    height: 2px;
    background: #eee;
    margin: 0 5px;
}

/* SCREENS */
.screen {
    flex: 1;
    padding: 1.5rem;
    display: none; /* Hidden by default */
    flex-direction: column;
    animation: fadeIn 0.4s ease;
}

.active-screen {
    display: flex;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.headline {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.subhead {
    color: var(--text-gray);
    margin-bottom: 2rem;
}

/* STEP 1: CARDS */
.grid-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: auto; /* Pushes button to bottom */
}

.option-card {
    background: var(--bg);
    padding: 1.5rem;
    border-radius: 16px;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: 0.2s;
}

    .option-card:hover {
        transform: translateY(-3px);
    }

    .option-card.selected {
        border-color: var(--primary);
        background: #eef5ff;
    }

.icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.option-card h3 {
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
}

.option-card p {
    font-size: 0.75rem;
    color: var(--text-gray);
}

/* STEP 2: TIME */
.date-picker {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.date-card {
    flex: 1;
    text-align: center;
    padding: 0.8rem;
    border-radius: 12px;
    border: 1px solid #eee;
    color: var(--text-gray);
}

    .date-card.active {
        background: var(--primary);
        color: white;
        border-color: var(--primary);
    }

.day {
    display: block;
    font-size: 0.7rem;
    margin-bottom: 0.2rem;
}

.num {
    font-weight: 700;
    font-size: 1.2rem;
}

.time-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: auto;
}

.time-slot {
    padding: 1rem;
    border: 1px solid #eee;
    background: white;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
}

    .time-slot.selected {
        background: var(--primary);
        color: white;
        border-color: var(--primary);
    }

/* STEP 3: SUCCESS */
.success-box {
    text-align: center;
    margin-top: 2rem;
    margin-bottom: 3rem;
}

.check-icon {
    width: 80px;
    height: 80px;
    background: var(--success);
    color: white;
    border-radius: 50%;
    font-size: 3rem;
    line-height: 80px;
    margin: 0 auto 1.5rem;
}

.summary-card {
    background: var(--bg);
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: auto;
}

.row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

    .row:last-child {
        margin-bottom: 0;
    }

/* BUTTONS */
.btn-next, .btn-home {
    width: 100%;
    padding: 1rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    margin-top: 1rem;
}

    .btn-next:disabled {
        background: #ccc;
        cursor: not-allowed;
    }

.btn-back {
    border: none;
    background: none;
    color: var(--text-gray);
    cursor: pointer;
    margin-bottom: 1rem;
    align-self: flex-start;
}

.portfolio-link {
    display: block;
    text-align: center;
    margin-top: 1rem;
    color: var(--text-gray);
    font-size: 0.9rem;
    text-decoration: none;
}

/* RESPONSIVE FULL SCREEN ON MOBILE */
@media (max-width: 480px) {
    .app-container {
        height: 100vh;
        border-radius: 0;
        max-width: 100%;
    }

    body {
        background-color: var(--white);
    }
}