:root {
    --primary-color: #FFB6C1;           
    --secondary-color: #FFC0CB;         
    --accent-color: #FF69B4;            
    --light-pink: #FFE4E1;              
    --dark-pink: #DB7093;              

    --background-color: #FFF5F7;        
    --card-background: #FFFFFF;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-light: #999999;

    --border-color: #FFD6DD;
    --shadow-color: rgba(255, 182, 193, 0.2);
    --hover-shadow: rgba(255, 182, 193, 0.4);

    --success-color: #98D8C8;
    --error-color: #FF6B6B;
    --warning-color: #FFD93D;

    --max-width: 1200px;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}


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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--dark-pink);
    margin-bottom: 1rem;
    font-weight: 600;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--dark-pink);
}


.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
}

.wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
}


header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px var(--shadow-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}


nav ul {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

nav a {
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
}

nav a:hover,
nav a.active {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Menu Mobile */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}


.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    box-shadow: 0 4px 6px var(--shadow-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px var(--hover-shadow);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
}


.card {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: 0 4px 6px var(--shadow-color);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px var(--hover-shadow);
}

.card-header {
    border-bottom: 2px solid var(--light-pink);
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.card-title {
    color: var(--dark-pink);
    margin-bottom: 0.5rem;
}

.card-body {
    color: var(--text-secondary);
}

.card-footer {
    border-top: 1px solid var(--light-pink);
    padding-top: 1rem;
    margin-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}


.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }


.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--dark-pink);
    font-weight: 500;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
textarea,
select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--card-background);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--shadow-color);
}

textarea {
    min-height: 120px;
    resize: vertical;
}


table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 6px var(--shadow-color);
}

thead {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

th, td {
    padding: 1rem;
    text-align: left;
}

tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

tbody tr:hover {
    background-color: var(--light-pink);
}

tbody tr:last-child {
    border-bottom: none;
}


footer {
    background: linear-gradient(135deg, var(--dark-pink), var(--primary-color));
    color: white;
    padding: 2rem 0;
    margin-top: auto;
    box-shadow: 0 -2px 10px var(--shadow-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

footer a {
    color: white;
}

footer a:hover {
    color: var(--light-pink);
}


.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    border-left: 4px solid;
}

.alert-success {
    background-color: #e8f8f5;
    border-color: var(--success-color);
    color: #155724;
}

.alert-error {
    background-color: #ffe8e8;
    border-color: var(--error-color);
    color: #721c24;
}

.alert-warning {
    background-color: #fff8e1;
    border-color: var(--warning-color);
    color: #856404;
}

.alert-info {
    background-color: var(--light-pink);
    border-color: var(--primary-color);
    color: var(--dark-pink);
}


.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

.flex { display: flex; }
.flex-column { flex-direction: column; }
.flex-center { justify-content: center; align-items: center; }
.flex-between { justify-content: space-between; }
.flex-gap { gap: 1rem; }

.rounded { border-radius: var(--border-radius); }
.shadow { box-shadow: 0 4px 6px var(--shadow-color); }

@media (max-width: 992px) {
    html {
        font-size: 15px;
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
}


@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .container {
        padding: 0 1rem;
    }


    .header-content {
        flex-wrap: wrap;
    }

    .menu-toggle {
        display: block;
    }

    nav {
        width: 100%;
        order: 3;
    }

    nav ul {
        flex-direction: column;
        width: 100%;
        max-height: 0;
        overflow: hidden;
        transition: var(--transition);
    }

    nav.active ul {
        max-height: 500px;
        padding: 1rem 0;
    }

    nav a {
        display: block;
        width: 100%;
        padding: 0.75rem 1rem;
    }


    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }


    .card {
        padding: 1rem;
    }


    .footer-content {
        flex-direction: column;
        text-align: center;
    }


    table {
        font-size: 0.875rem;
    }

    th, td {
        padding: 0.5rem;
    }


    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
}


@media (max-width: 480px) {
    html {
        font-size: 13px;
    }

    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }

    .card {
        padding: 0.75rem;
    }

    table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
}


@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}


@media print {
    header,
    footer,
    nav,
    .btn {
        display: none;
    }

    body {
        background-color: white;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}