@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #0984e3;
    --primary-dark: #0652DD;
    --dark: #1e272e;
    --dark-light: #34495e;
    --accent: #ff6b6b;
    --success: #00d2d3;
    --warning: #feca57;
    --bg: #f5f6fa;
    --white: #ffffff;
    --text: #2d3436;
    --text-muted: #636e72;
    --border: #dfe6e9;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    min-height: 100vh;
    padding-top: 70px;
}

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--dark);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    height: 70px;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
}

.nav-brand {
    color: var(--white);
    font-size: 1.35rem;
    font-weight: 700;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease;
}

.nav-brand:hover {
    color: var(--primary);
}

.nav-logo {
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.2rem;
}

.nav-links a {
    color: #b2bec3;
    text-decoration: none;
    padding: 0.5rem 0.8rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.nav-links a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.nav-links a.active {
    background-color: var(--primary);
    color: var(--white);
}

/* Hamburger Toggle (CSS only) */
.nav-toggle {
    display: none;
}

.nav-toggle-label {
    display: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
    display: block;
    background-color: var(--white);
    height: 3px;
    width: 26px;
    border-radius: 3px;
    position: relative;
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.nav-toggle-label span::before,
.nav-toggle-label span::after {
    content: '';
    position: absolute;
}

.nav-toggle-label span::before {
    top: -8px;
}

.nav-toggle-label span::after {
    top: 8px;
}

.nav-toggle:checked ~ .nav-toggle-label span {
    background-color: transparent;
}

.nav-toggle:checked ~ .nav-toggle-label span::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle:checked ~ .nav-toggle-label span::after {
    top: 0;
    transform: rotate(-45deg);
}

/* ===== PAGE LAYOUT ===== */
.page-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.5rem;
    text-align: center;
}

.page-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 2rem;
}

/* ===== CARD ===== */
.card {
    background-color: var(--white);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border: none;
    border-radius: 10px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.3s ease;
    text-decoration: none;
    text-align: center;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

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

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

.btn-accent {
    background-color: var(--accent);
    color: var(--white);
}

.btn-accent:hover {
    background-color: #ee5253;
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: 0.65rem 1.65rem;
}

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

/* ===== FORMS ===== */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text);
    font-size: 0.95rem;
}

.form-group input {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background-color: var(--white);
    color: var(--text);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(9, 132, 227, 0.15);
}

/* ===== FOOTER ===== */
.footer {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 2rem;
    border-top: 1px solid var(--border);
}

.footer a {
    color: var(--primary);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* ===== MOBILE RESPONSIVE ===== */
@media (max-width: 768px) {
    body {
        padding-top: 60px;
    }

    .navbar {
        height: 60px;
        padding: 0 1rem;
    }

    .nav-brand {
        font-size: 1.1rem;
    }

    .nav-toggle-label {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .nav-links {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background-color: var(--dark);
        flex-direction: column;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
        box-shadow: var(--shadow-lg);
    }

    .nav-toggle:checked ~ .nav-links {
        max-height: 500px;
    }

    .nav-links a {
        display: block;
        padding: 0.85rem 1.5rem;
        text-align: center;
        border-radius: 0;
        font-size: 0.95rem;
    }

    .nav-links a:first-child {
        margin-top: 0.5rem;
    }

    .nav-links a:last-child {
        margin-bottom: 0.5rem;
    }

    .page-container {
        padding: 1.25rem;
    }

    .page-title {
        font-size: 1.5rem;
    }

    .card {
        padding: 1.25rem;
        border-radius: 12px;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 1.25rem;
    }

    .btn {
        padding: 0.65rem 1.25rem;
        font-size: 0.9rem;
    }
}