/* Global Styles - PEDRO SILVA */

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f0f2f5;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-tertiary: #999999;
    --border-color: #e0e0e0;
    --accent-color: #000000;
    --accent-light: #333333;
    --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --card-shadow-hover: 0 8px 16px rgba(0, 0, 0, 0.12);
}

html[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3a3a3a;
    --text-primary: #ffffff;
    --text-secondary: #d0d0d0;
    --text-tertiary: #999999;
    --border-color: #404040;
    --accent-color: #ffffff;
    --accent-light: #e0e0e0;
    --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --card-shadow-hover: 0 8px 16px rgba(0, 0, 0, 0.4);
}

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

html, body {
    height: 100%;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

h1 {
    font-size: 2.5rem;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 2rem;
    letter-spacing: -0.3px;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: opacity 0.2s ease;
}

a:hover {
    opacity: 0.8;
}

.navbar {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    padding: 1rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary) !important;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand i {
    font-size: 1.8rem;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    padding: 0.5rem 0.75rem !important;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary) !important;
    background-color: var(--bg-secondary);
}


.navbar-toggler {
    border-color: var(--text-primary) !important;
    padding: 0.5rem 0.75rem;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.25rem rgba(0, 0, 0, 0.1) !important;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23ffffff' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

:root .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23000000' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

html[data-theme="dark"] .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23ffffff' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    margin-left: 1rem;
}

.theme-toggle:hover {
    background-color: var(--bg-secondary);
}

.card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    overflow: hidden;
}

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

.card-header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 1.5rem;
    color: var(--text-secondary);
}

.card-title {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
}

.btn {
    font-weight: 500;
    border-radius: 6px;
    padding: 0.625rem 1.25rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.95rem;
}

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

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

.btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-danger {
    background-color: #dc3545;
    color: white;
}

.btn-danger:hover {
    background-color: #c82333;
}

.btn-warning {
    background-color: #ffc107;
    color: #000;
}

.btn-warning:hover {
    background-color: #e0a800;
}

.btn-success {
    background-color: #28a745;
    color: white;
}

.btn-success:hover {
    background-color: #218838;
}

.form-control,
.form-select {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.form-control:focus,
.form-select:focus {
    background-color: var(--bg-secondary);
    border-color: var(--accent-color);
    color: var(--text-primary);
    box-shadow: 0 0 0 0.2rem rgba(0, 0, 0, 0.1);
}

.form-control::placeholder {
    color: var(--text-tertiary);
}

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

.alert {
    border-radius: 6px;
    border: 1px solid;
    padding: 1rem;
    margin-bottom: 1rem;
}

.alert-danger {
    background-color: #fee;
    border-color: #fcc;
    color: #c33;
}

.alert-success {
    background-color: #efe;
    border-color: #cfc;
    color: #3c3;
}

.alert-warning {
    background-color: #ffeaa7;
    border-color: #ffd966;
    color: #856404;
}

.alert-info {
    background-color: #e7f3ff;
    border-color: #b3d9ff;
    color: #004085;
}

.table {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border-collapse: collapse;
    width: 100%;
}

.table thead th {
    background-color: var(--bg-secondary);
    border-bottom: 2px solid var(--border-color);
    color: var(--text-primary);
    font-weight: 600;
    padding: 1rem;
}

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

.table tbody tr:hover {
    background-color: var(--bg-tertiary);
}

.table td {
    padding: 1rem;
    color: var(--text-primary);
    font-weight: 500;
}

.table-responsive {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

html[data-theme="dark"] .table {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
}

html[data-theme="dark"] .table tbody tr {
    background-color: var(--bg-primary) !important;
    border-bottom: 1px solid var(--border-color) !important;
}

html[data-theme="dark"] .table tbody tr:hover {
    background-color: var(--bg-secondary) !important;
}

html[data-theme="dark"] .table td {
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
    padding: 1rem !important;
    background-color: var(--bg-primary) !important;
}

html[data-theme="dark"] .table thead th {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    font-weight: 600 !important;
    padding: 1rem !important;
    border-color: var(--border-color) !important;
}

.container,
.container-fluid {
    padding: 1.5rem;
}

.page-title {
    color: var(--text-primary);
    text-align: center;
    margin: 2rem 0;
    font-size: 2rem;
    font-weight: 700;
}

.welcome-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    margin-bottom: 2rem;
    box-shadow: var(--card-shadow);
}

.welcome-title {
    color: var(--text-primary);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.welcome-text {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.stat-card {
    text-align: center;
    padding: 2rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
}

.login-container {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    padding: 2.5rem;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.login-container h1 {
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 700;
}

.calculator-container {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    padding: 1.5rem;
    max-width: 400px;
    margin: 0 auto;
}

.calculator-display {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1rem;
    text-align: right;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    word-wrap: break-word;
    word-break: break-all;
    min-height: 50px;
}

.calculator-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
}

.calculator-btn {
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    border: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.calculator-btn:hover {
    background-color: var(--bg-tertiary);
    box-shadow: var(--card-shadow);
}

.calculator-btn.operator {
    background-color: var(--accent-color);
    color: var(--bg-primary);
    font-weight: 700;
}

.calculator-btn.operator:hover {
    background-color: var(--accent-light);
}

.calculator-btn.equals {
    background-color: #28a745;
    color: white;
    font-weight: 700;
    grid-column: span 2;
}

.calculator-btn.equals:hover {
    background-color: #218838;
}

.calculator-btn.clear {
    background-color: #dc3545;
    color: white;
    font-weight: 700;
    grid-column: span 2;
}

.calculator-btn.clear:hover {
    background-color: #c82333;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .page-title {
        font-size: 1.5rem;
        margin: 1rem 0;
    }

    .navbar {
        padding: 0.75rem 0;
    }

    .navbar-brand {
        font-size: 1.25rem;
    }

    .nav-link {
        margin: 0.25rem 0;
        padding: 0.5rem 0.5rem !important;
    }

    .container,
    .container-fluid {
        padding: 1rem;
    }

    .card-body {
        padding: 1rem;
    }

    .welcome-card {
        padding: 1.5rem;
    }

    .login-container {
        padding: 1.5rem;
        max-width: 90%;
    }

    .calculator-container {
        padding: 1rem;
    }

    .stat-card {
        padding: 1.5rem;
    }

    .stat-number {
        font-size: 2rem;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card,
.welcome-card,
.login-container {
    animation: fadeIn 0.3s ease;
}

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

.text-muted {
    color: var(--text-tertiary);
}

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

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

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

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

.d-flex {
    display: flex;
}

.flex-column {
    flex-direction: column;
}

.justify-content-center {
    justify-content: center;
}

.align-items-center {
    align-items: center;
}

.w-100 {
    width: 100%;
}

.h-100 {
    height: 100%;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}


.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem 1.5rem;
    min-width: 300px;
    max-width: 400px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    animation: slideIn 0.3s ease-out;
    pointer-events: auto;
}

.toast.success {
    background-color: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

.toast.error {
    background-color: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

.toast.warning {
    background-color: #fff3cd;
    border-color: #ffeeba;
    color: #856404;
}

.toast.info {
    background-color: #d1ecf1;
    border-color: #bee5eb;
    color: #0c5460;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(400px);
        opacity: 0;
    }
}

.toast.removing {
    animation: slideOut 0.3s ease-out;
}

.contact-message {
    display: none;
    padding: 1rem;
    margin-bottom: 1.5rem;
    border-radius: 6px;
    font-weight: 600;
}

.contact-message.success {
    background-color: rgba(40, 167, 69, 0.1);
    color: #28a745;
    border: 1px solid #28a745;
}

.contact-message.error {
    background-color: rgba(220, 53, 69, 0.1);
    color: #dc3545;
    border: 1px solid #dc3545;
}

#contactForm input,
#contactForm textarea {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

#contactForm input:focus,
#contactForm textarea:focus {
    background-color: var(--bg-secondary);
    border-color: var(--accent-color);
    color: var(--text-primary);
}

#contactForm label {
    color: var(--text-primary);
    font-weight: 600;
}

.admin-section {
    margin-bottom: 3rem;
}

.admin-section h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--bg-tertiary);
}

.project-image {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 5px;
}

.admin-card {
    background-color: var(--bg-secondary);
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--bg-tertiary);
    transition: transform 0.3s, box-shadow 0.3s;
}

.admin-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.admin-card h5 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.admin-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.btn-admin {
    width: 100%;
    padding: 0.75rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

.warning-box {
    background-color: rgba(255, 193, 7, 0.1);
    border-left: 4px solid #ffc107;
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
}

.danger-box {
    background-color: rgba(220, 53, 69, 0.1);
    border-left: 4px solid #dc3545;
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
}

.info-box {
    background-color: rgba(23, 162, 184, 0.1);
    border-left: 4px solid #17a2b8;
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.85rem;
}

.login-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.welcome-section {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

    .welcome-content {
    text-align: center;
    max-width: 600px;
}

    .welcome-title {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

    .welcome-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

    .welcome-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

    .welcome-buttons .btn {
    padding: 0.75rem 2rem;
    font-weight: 600;
}

    body {
        display: flex;
        flex-direction: column;
        min-height: 100vh;
    }

        /* User Dropdown Styles */
        .user-dropdown-container {
            position: relative;
            display: inline-block;
        }

        .user-info:hover {
            background-color: var(--bg-secondary);
        }

        .user-dropdown-menu {
            position: absolute;
            top: 100%;
            right: 0;
            background-color: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: 4px;
            box-shadow: var(--card-shadow-hover);
            min-width: 220px;
            margin-top: 0.5rem;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: all 0.2s ease;
        }

        .user-dropdown-menu.active {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .user-dropdown-header {
            padding: 1rem;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .user-dropdown-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent-color);
            color: var(--bg-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
        }

        .user-dropdown-info h4 {
            margin: 0;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .user-dropdown-info p {
            margin: 0;
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        .user-dropdown-body {
            padding: 0.5rem 0;
        }

        .user-dropdown-item {
            padding: 0.75rem 1rem;
            color: var(--text-primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            cursor: pointer;
            transition: all 0.2s ease;
            border: none;
            background: none;
            width: 100%;
            text-align: left;
            font-size: 0.95rem;
        }

        .user-dropdown-item:hover {
            background-color: var(--bg-secondary);
        }

        .user-dropdown-item i {
            font-size: 1rem;
            width: 20px;
            text-align: center;
        }

        .user-dropdown-divider {
            height: 1px;
            background-color: var(--border-color);
            margin: 0.5rem 0;
        }

        .user-dropdown-item.logout {
            color: #dc3545;
        }

        .user-dropdown-item.logout:hover {
            background-color: rgba(220, 53, 69, 0.1);
        }

        @media (max-width: 768px) {
            .user-dropdown-menu {
                min-width: 200px;
                right: -10px;
            }

            .user-info span {
                display: none;
            }

            .user-avatar {
                width: 28px;
                height: 28px;
                font-size: 0.75rem;
            }
        }