/* ========== GEN Z LIGHT MODE - FRESH EDITION ========== */
:root {
    /* Warna Utama - Blue to Purple Theme */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #e0e7ff;
    --secondary: #8b5cf6;
    --secondary-light: #ede9fe;
    --accent: #ec4899;
    --accent-light: #fce7f3;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --info: #06b6d4;
    --info-light: #cffafe;
    --success: #10b981;
    --success-light: #d1fae5;
    --dark: #1e293b;
    --gray: #64748b;
    --light: #f8fafc;
    --white: #ffffff;
    
    /* Shadow */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 15px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.08);
    --shadow-xl: 0 20px 35px -10px rgba(0,0,0,0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-blue: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --gradient-soft: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--gradient-soft);
    min-height: 100vh;
    padding: 20px;
}

/* Container */
.guru-container {
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
}

/* Welcome Card - Blue Purple Gradient */
.welcome-card {
    background: var(--gradient-blue);
    border-radius: 28px;
    padding: 35px 40px;
    margin-bottom: 35px;
    color: white;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.welcome-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 70%;
    height: 200%;
    background: rgba(255,255,255,0.05);
    transform: rotate(25deg);
    pointer-events: none;
}

.welcome-card h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.welcome-card p {
    opacity: 0.9;
    font-size: 16px;
    position: relative;
    z-index: 1;
}

/* Layout 2 Kolom */
.dashboard-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: start;
}

/* Kolom Kiri & Kanan */
.column-left, .column-right {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Section Title - Warna Ungu */
.section-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 12px;
    border-bottom: 3px solid var(--primary);
    display: inline-block;
}

/* Card Modern */
.card-modern {
    background: var(--white);
    border-radius: 24px;
    overflow: hidden;
    transition: all 0.3s;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0,0,0,0.03);
}

.card-modern:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* Card Header - Gradient Ungu */
.card-header {
    padding: 18px 22px;
    background: var(--gradient-blue);
    color: white;
}

.card-header h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Card Header Wali - Gradient Pink */
.card-header.wali {
    background: linear-gradient(135deg, #ec4899 0%, #f43f5e 100%);
}

.card-body {
    padding: 20px;
}

.card-info {
    margin-bottom: 18px;
}

.card-info p {
    margin-bottom: 10px;
    color: var(--gray);
    font-size: 14px;
}

.card-info .label {
    font-weight: 600;
    color: var(--dark);
    width: 85px;
    display: inline-block;
}

/* Button Group */
.btn-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 15px;
}

/* Buttons - Warna sesuai fungsinya */
.btn-primary {
    background: var(--primary);
    color: white;
    padding: 10px 16px;
    border-radius: 12px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}
.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--secondary);
    color: white;
    padding: 10px 16px;
    border-radius: 12px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}
.btn-secondary:hover {
    background: #7c3aed;
    transform: translateY(-2px);
}

.btn-warning {
    background: var(--warning);
    color: white;
    padding: 10px 16px;
    border-radius: 12px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}
.btn-warning:hover {
    background: #d97706;
    transform: translateY(-2px);
}

.btn-info {
    background: var(--info);
    color: white;
    padding: 10px 16px;
    border-radius: 12px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}
.btn-info:hover {
    background: #0891b2;
    transform: translateY(-2px);
}

.btn-dark {
    background: var(--dark);
    color: white;
    padding: 10px 16px;
    border-radius: 12px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}
.btn-dark:hover {
    background: #0f172a;
    transform: translateY(-2px);
}

.btn-danger {
    background: var(--danger);
    color: white;
    padding: 12px 28px;
    border-radius: 14px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}
.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-2px);
}

/* Alert */
.alert-soft {
    background: var(--primary-light);
    color: var(--primary);
    padding: 18px 24px;
    border-radius: 18px;
    text-align: center;
    font-weight: 500;
    font-size: 15px;
}

/* Logout wrapper */
.logout-wrapper {
    margin-top: 40px;
    text-align: center;
    padding: 20px;
    grid-column: span 2;
}

/* Tombol Kembali */
.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: white;
    color: var(--dark);
    padding: 10px 20px;
    border-radius: 14px;
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 20px;
    transition: all 0.2s;
    box-shadow: var(--shadow-sm);
}
.btn-back:hover {
    background: var(--primary);
    color: white;
    transform: translateX(-5px);
}

/* Form Card */
.form-card {
    background: white;
    border-radius: 24px;
    padding: 25px;
    box-shadow: var(--shadow-lg);
    overflow-x: auto;
}

/* Table Nilai */
.table-nilai {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    min-width: 1200px;
}
.table-nilai th {
    background: var(--gradient-blue);
    color: white;
    padding: 12px 8px;
    text-align: center;
    font-weight: 600;
    font-size: 12px;
    border: 1px solid rgba(255,255,255,0.1);
}
.table-nilai td {
    padding: 10px 8px;
    text-align: center;
    border: 1px solid #e2e8f0;
    vertical-align: middle;
}
.table-nilai tr:hover {
    background: var(--primary-light);
}

/* Sticky Column */
.sticky-col {
    position: sticky;
    left: 0;
    background: white;
    z-index: 10;
    font-weight: 600;
    color: var(--dark);
}
.table-nilai tr:hover .sticky-col {
    background: var(--primary-light);
}

/* Input Nilai */
.input-nilai {
    width: 70px;
    padding: 8px 5px;
    text-align: center;
    border: 1.5px solid #e2e8f0;
    border-radius: 10px;
    font-size: 13px;
    transition: all 0.2s;
}
.input-nilai:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}
.input-nilai:hover {
    border-color: var(--primary);
}

/* Nilai CP */
.nilai-cp {
    font-weight: 700;
    color: var(--primary);
    background: var(--primary-light);
    border-radius: 12px;
    padding: 6px 8px;
    display: inline-block;
    min-width: 55px;
}

/* Nilai Raport */
.nilai-raport {
    font-weight: 800;
    color: white;
    background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    border-radius: 12px;
    padding: 6px 8px;
    display: inline-block;
    min-width: 55px;
}

/* Tombol Simpan */
.btn-simpan {
    background: var(--gradient-blue);
    color: white;
    padding: 14px 32px;
    border: none;
    border-radius: 16px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 25px;
}
.btn-simpan:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

/* ========== RESPONSIVE ========== */
@media (min-width: 1200px) {
    .dashboard-layout {
        gap: 35px;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .dashboard-layout {
        gap: 25px;
    }
    .btn-group {
        gap: 8px;
    }
    .btn-primary, .btn-secondary, .btn-warning, .btn-info, .btn-dark {
        padding: 8px 12px;
        font-size: 12px;
    }
}

@media (max-width: 768px) {
    body {
        padding: 15px;
    }
    .welcome-card {
        padding: 25px;
    }
    .welcome-card h1 {
        font-size: 24px;
    }
    .dashboard-layout {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    .logout-wrapper {
        grid-column: span 1;
    }
    .btn-group {
        flex-direction: column;
    }
    .btn-group a {
        text-align: center;
        justify-content: center;
    }
    .card-header h3 {
        font-size: 16px;
    }
    .section-title {
        font-size: 18px;
    }
    .input-nilai {
        width: 55px;
        padding: 6px 3px;
        font-size: 11px;
    }
    .form-card {
        padding: 15px;
    }
}

/* Animasi */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card-modern {
    animation: fadeInUp 0.4s ease-out;
}

/* Scrollbar */
::-webkit-scrollbar {
    height: 8px;
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}
::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 10px;
}