/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #0083c4;
    --color-secondary: #ee804b;
    --color-accent: #0099e6;
    --color-bg-light: #fafafa;
    --color-bg-dark: #1a1a1a;
    --color-text-dark: #2d2d2d;
    --color-text-light: #666;
    --color-white: #ffffff;
    --color-border: #e0e0e0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--color-text-dark);
    background: var(--color-bg-light);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== ADMIN PAGE STYLES ===== */
.admin-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 20px;
}

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

.admin-header h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.admin-header p {
    color: var(--color-text-light);
    font-size: 1.1rem;
}

/* ===== FORM STYLES ===== */
.form-section {
    background: var(--color-white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    margin-bottom: 40px;
    transition: var(--transition);
}

.form-section:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.form-section h2 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 30px;
    color: var(--color-text-dark);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--color-text-dark);
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 18px;
    border: 2px solid var(--color-border);
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--color-white);
    width: 100%;
    max-width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

/* Input Group Styles */
.input-group {
    display: flex;
    align-items: center;
}

.input-prefix {
    background: #e9ecef;
    border: 2px solid var(--color-border);
    border-right: none;
    border-radius: 12px 0 0 12px;
    padding: 14px 15px;
    font-weight: 600;
    color: var(--color-text-dark);
    font-size: 1rem;
    height: 54px;
    /* Match input height */
    display: flex;
    align-items: center;
}

.input-group input {
    border-radius: 0 12px 12px 0;
    flex: 1;
}

.input-group input:focus {
    z-index: 1;
}

/* ===== BUTTON STYLES ===== */
.btn {
    padding: 16px 32px;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

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

.btn-primary:active {
    transform: translateY(0);
}

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

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

.btn-delete {
    background: #ef4444;
    color: var(--color-white);
    padding: 10px 20px;
    font-size: 0.9rem;
}

.btn-delete:hover {
    background: #dc2626;
}

/* ===== CARDS LIST STYLES ===== */
.cards-section {
    background: var(--color-white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.cards-section h2 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 30px;
    color: var(--color-text-dark);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
}

.card-item {
    background: linear-gradient(135deg, #fafafa, #ffffff);
    border: 2px solid var(--color-border);
    border-radius: 16px;
    padding: 25px;
    transition: var(--transition);
    position: relative;
}

.card-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.card-item h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text-dark);
}

.card-item p {
    color: var(--color-text-light);
    font-size: 1rem;
    margin-bottom: 8px;
}

.card-info small {
    font-size: 0.8rem;
    color: var(--color-text-light);
}

.card-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.icon-btn {
    padding: 10px;
    background: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 18px;
}

.icon-btn:hover {
    background: var(--color-bg-light);
    border-color: var(--color-primary);
}

/* ===== UTILITIES ===== */
.text-center {
    text-align: center;
}

.hidden {
    display: none;
}

/* ===== TOAST NOTIFICATIONS ===== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
}

.toast {
    padding: 16px 24px;
    border-radius: 12px;
    font-weight: 500;
    font-size: 0.95rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    margin-bottom: 10px;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    max-width: 400px;
}

.toast.show {
    opacity: 1;
    transform: translateX(0);
}

.toast-success {
    background: linear-gradient(135deg, #10b981, #059669);
    color: var(--color-white);
}

.toast-error {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: var(--color-white);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .admin-container {
        padding: 10px;
        max-width: 100vw;
        overflow-x: hidden;
    }

    .form-section,
    .cards-section {
        padding: 15px 10px;
        border-radius: 12px;
    }

    .form-section h2,
    .cards-section h2 {
        font-size: 1.3rem;
    }

    .form-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 10px 12px;
        font-size: 0.9rem;
    }

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

    .card-item {
        padding: 12px;
    }

    .card-item h3 {
        font-size: 1rem;
    }

    .card-info small {
        font-size: 0.7rem;
        word-break: break-all;
    }

    .icon-btn {
        padding: 6px;
        font-size: 14px;
    }
}

/* Login Modal Styles */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #f8f9fa;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.login-box {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-logo {
    height: auto;
    max-width: 80%;
    max-height: 100px;
    margin-bottom: 20px;
    object-fit: contain;
}

.login-box h2 {
    margin-bottom: 30px;
    color: var(--color-primary);
}

.login-box .form-group {
    text-align: left;
    margin-bottom: 20px;
}

.login-box label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--color-text-dark);
}

.login-box input {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--color-border);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.login-box input:focus {
    border-color: var(--color-primary);
    outline: none;
}