body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg,#f8fafc 0%,#e2e8f0 100%);
}

/*==========================
        CONTAINER
==========================*/

.book-container {
    max-width: 1200px;
    margin: auto;
    padding: 50px 20px;
}

/*==========================
         HEADER
==========================*/

.book-header {
    text-align: center;
    margin-bottom: 50px;
}

    .book-header h1 {
        font-size: 52px;
        font-weight: bold;
        background: linear-gradient(135deg,#08574c 0%,#2fa88d 50%,#08574c 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        color: transparent;
    }

    .book-header p {
        font-size: 18px;
        color: #64748b;
        margin-top: 15px;
    }

/*==========================
          GRID
==========================*/

.book-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 35px;
    align-items: start;
}

/*==========================
          CARDS
==========================*/

.book-form,
.book-info {
    background: white;
    padding: 35px;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0,0,0,.08);
}

    /*==========================
          TITLES
==========================*/

    .book-form h2,
    .calendar-section h2 {
        text-align: center;
        margin-bottom: 25px;
        font-size: 34px;
        font-weight: bold;
        background: linear-gradient(135deg,#08574c 0%,#2fa88d 50%,#08574c 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        color: transparent;
    }

    /*==========================
          INPUTS
==========================*/

    .book-form input,
    .book-form select,
    .book-form textarea {
        width: 100%;
        padding: 15px;
        margin-bottom: 18px;
        border-radius: 10px;
        border: 1px solid #d8d8d8;
        font-size: 15px;
        transition: .3s;
        box-sizing: border-box;
    }

        .book-form input:focus,
        .book-form select:focus,
        .book-form textarea:focus {
            outline: none;
            border-color: #2fa88d;
            box-shadow: 0 0 0 4px rgba(47,168,141,.18);
        }

    .book-form label {
        display: block;
        margin-bottom: 8px;
        color: #475569;
        font-weight: bold;
    }

    /*==========================
          BUTTON
==========================*/

    .book-form button {
        width: 100%;
        padding: 15px;
        border: none;
        border-radius: 10px;
        cursor: pointer;
        color: white;
        font-size: 16px;
        font-weight: bold;
        transition: .3s;
        background: linear-gradient(135deg,#08574c,#2fa88d);
    }

        .book-form button:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(0,0,0,.18);
        }

/*==========================
        INFO CARDS
==========================*/

.book-info {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.info-card {
    background: white;
    padding: 22px;
    border-radius: 15px;
    border-left: 6px solid #2fa88d;
    transition: .3s;
}

    .info-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 12px 25px rgba(0,0,0,.08);
    }

    .info-card h3 {
        margin: 0;
        color: #08574c;
        font-size: 22px;
    }

    .info-card p {
        margin-top: 10px;
        color: #475569;
        line-height: 1.6;
    }

.highlight {
    background: linear-gradient(135deg,#08574c,#2fa88d);
    color: white;
    border-left: none;
}

    .highlight h3,
    .highlight p {
        color: white;
    }

/*==========================
        CALENDAR
==========================*/

.calendar-section {
    margin-top: 60px;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7,1fr);
    gap: 18px;
}

.day {
    background: white;
    padding: 25px 15px;
    border-radius: 15px;
    text-align: center;
    transition: .3s;
    box-shadow: 0 8px 20px rgba(0,0,0,.05);
}

    .day:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 30px rgba(0,0,0,.08);
    }

    .day h4 {
        margin: 0;
        font-size: 20px;
        color: #08574c;
    }

    .day p {
        margin-top: 10px;
        color: #64748b;
    }

.weekend {
    background: #f1f5f9;
}

/*==========================
        RESPONSIVE
==========================*/

@media(max-width:900px) {

    .book-grid {
        grid-template-columns: 1fr;
    }

    .calendar-grid {
        grid-template-columns: repeat(2,1fr);
    }
}

@media(max-width:768px) {

    .book-container {
        padding: 25px 15px;
    }

    .book-header h1 {
        font-size: 36px;
    }

    .book-header p {
        font-size: 16px;
    }

    .book-form,
    .book-info {
        padding: 22px;
    }

        .book-form h2,
        .calendar-section h2 {
            font-size: 28px;
        }

    .calendar-grid {
        grid-template-columns: 1fr;
    }
}