* {
    box-sizing: border-box;
    font-family: "Arial", sans-serif;
}

:root {
    --primary: #087f8c;
    --dark: #07545d;
    --light: #e6f7f7;
    --background: #f3f7fa;
    --text: #1e293b;
}

body {
    margin: 0;
    background: var(--background);
    color: var(--text);
    direction: rtl;
}

.app {
    width: 100%;
    max-width: 500px;
    margin: auto;
    padding: 18px;
}

header {
    background: linear-gradient(135deg, #07545d, #0b9ba5);
    color: white;
    text-align: center;
    padding: 32px 15px;
    border-radius: 22px;
    margin-bottom: 22px;
    box-shadow: 0 8px 22px #087f8c35;
}

header h1 {
    margin: 0 0 10px;
    font-size: 32px;
    font-weight: bold;
}

header p {
    margin: 0;
    font-size: 15px;
    opacity: .9;
}

main,
#student-dashboard,
#admin-dashboard {
    background: white;
    padding: 23px;
    border-radius: 20px;
    box-shadow: 0 5px 20px #0000000b;
    margin-bottom: 18px;
}

h2 {
    color: var(--dark);
    font-size: 23px;
}

h3 {
    color: var(--primary);
}

input {
    width: 100%;
    padding: 16px;
    margin: 10px 0;
    border: 1px solid #dbe4e8;
    border-radius: 12px;
    font-size: 16px;
    background: #f8fafc;
    outline: none;
    transition: .2s;
}

input:focus {
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 3px #087f8c18;
}

button {
    width: 100%;
    padding: 15px;
    margin-top: 12px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, #087f8c, #0b9ba5);
    color: white;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: .2s;
}

button:active {
    transform: scale(.98);
}

button:disabled {
    opacity: .5;
    cursor: not-allowed;
}

#message {
    text-align: center;
    color: #dc2626;
    margin-top: 15px;
}

#credits {
    background: var(--light);
    color: var(--dark);
    text-align: center;
    padding: 22px;
    border-radius: 16px;
    font-size: 38px;
    font-weight: bold;
    border: 1px solid #c9eeee;
}

.machine-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 18px;
    margin: 14px 0;
    box-shadow: 0 3px 12px #00000008;
}

.machine-card h3 {
    margin-top: 0;
    font-size: 19px;
}

.machine-card p {
    color: #64748b;
    font-size: 15px;
}

.machine-card button {
    margin-top: 8px;
}

.laundry-timer {
    background: #fff7e6;
    color: #a16207 !important;
    padding: 12px;
    border-radius: 10px;
    text-align: center;
    font-weight: bold;
}

.student-card {
    background: #f1f8f9;
    border: 1px solid #d8eeee;
    border-radius: 12px;
    padding: 15px;
    margin: 10px 0;
    line-height: 1.8;
}

#logout,
#admin-logout {
    background: #64748b;
}

[hidden] {
    display: none !important;
}

@media (max-width: 380px) {
    .app {
        padding: 12px;
    }

    header h1 {
        font-size: 27px;
    }

    main,
    #student-dashboard,
    #admin-dashboard {
        padding: 17px;
    }
}
.brand-name {
    font-size: 24px;
    font-weight: 900;
    color: #ffffff;
    margin: 12px 0;
    letter-spacing: 1px;
}