/* === Import czcionek z Google Fonts === */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&family=Roboto:wght@400;700&display=swap');

/* === Zmienne CSS z Twojej palety kolorów === */
:root {
    --color-sell-light-mint: #B4FFE1;
    --color-sell-mint: #59FFBD;
    --color-sell-turquoise: #0BD3B8;
    --color-sell-dark-turquoise: #0A9BB8;

    --color-buy-cyan: #00E8FF;
    --color-buy-light-blue: #1BE8E8;
    --color-buy-blue: #00D4E8;

    --color-text-dark: #111111;
    --color-text-gray: #484848;
    --color-text-link: #048292;
    --color-white: #FFFFFF;
    --color-light-gray-bg: #F3F3F3;

    --font-primary: 'Montserrat', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
}

/* === Style globalne === */
body {
    margin: 0;
    font-family: var(--font-secondary);
    color: var(--color-text-gray);
    background-color: var(--color-white);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* === Nagłówek (Header) === */
.top-header {
    background: linear-gradient(to right, #B4FFE1, #00E8FF) !important;
    padding: 15px 0;
    position: relative;
    z-index: 10;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.top-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 24px;
    color: var(--color-text-dark);
    text-decoration: none;
}

.main-nav {
    display: flex;
}

.main-nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-link {
    font-family: var(--font-primary);
    color: var(--color-text-link);
    text-decoration: none;
    font-weight: 700;
    transition: color 0.3s ease-in-out;
}

.nav-link:hover {
    color: #0094FF;
}

/* === Sekcja "Hero" === */
.hero-section {
    text-align: center;
    padding: 80px 0;
}

.hero-section h1 {
    font-family: var(--font-primary);
    font-size: 42px;
    color: var(--color-text-dark);
    margin-bottom: 40px;
}

.action-buttons {
    display: flex;
    justify-content: center;
    gap: 30px;
}

.btn-action {
    font-family: var(--font-primary);
    font-size: 20px;
    font-weight: 700;
    padding: 16px 36px;
    border-radius: 999px;
    text-decoration: none;
    color: var(--color-text-dark);
    background-color: var(--color-white);
    border: 3px solid;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease-in-out;
    display: inline-block;
    min-width: 160px;
    text-align: center;
}

.btn-action.btn-sell {
    border-color: var(--color-sell-mint);
}

.btn-action.btn-sell:hover {
    background-color: var(--color-sell-light-mint);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.btn-action.btn-outline {
    border-color: var(--color-buy-cyan);
}

.btn-action.btn-outline:hover {
    background-color: var(--color-buy-light-blue);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

/* === Sekcja z treścią === */
.content-section {
    padding: 60px 0;
    text-align: center;
    background-color: var(--color-light-gray-bg);
}

.content-section h2 {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 32px;
    color: var(--color-text-dark);
}

.content-section p {
    font-size: 18px;
    line-height: 1.6;
    max-width: 700px;
    margin: 20px auto 0;
}

/* Transaction Cards */
.transaction-card {
    background: var(--color-white);
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    margin-bottom: 20px;
    font-family: var(--font-secondary);
}

.transaction-card.buy-theme {
    border-color: var(--color-buy-blue);
}

.transaction-card.buy-theme:hover {
    border-color: var(--color-buy-cyan);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 148, 255, 0.15);
    background: rgba(0, 232, 255, 0.05);
}

.transaction-card.buy-theme.selected {
    border-color: var(--color-buy-cyan);
    background: rgba(0, 232, 255, 0.1);
}

.transaction-card.sell-theme {
    border-color: var(--color-sell-turquoise);
}

.transaction-card.sell-theme:hover {
    border-color: var(--color-sell-mint);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(11, 211, 184, 0.15);
    background: rgba(180, 255, 225, 0.1);
}

.transaction-card.sell-theme.selected {
    border-color: var(--color-sell-mint);
    background: rgba(180, 255, 225, 0.15);
}

.transaction-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.transaction-card.buy-theme .transaction-icon {
    color: var(--color-buy-blue);
}

.transaction-card.sell-theme .transaction-icon {
    color: var(--color-sell-turquoise);
}

.transaction-card h4 {
    color: var(--color-text-dark);
    font-weight: 600;
    margin-bottom: 15px;
    font-family: var(--font-primary);
}

.transaction-card p {
    color: var(--color-text-gray);
    margin-bottom: 0;
}

/* === Style dla Formularzy === */
.form-container {
    max-width: 450px;
    margin: 60px auto;
    padding: 40px;
    background-color: var(--color-white);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.form-container h1, .form-container h2 {
    text-align: center;
    font-family: var(--font-primary);
    color: var(--color-text-dark);
    margin-top: 0;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #374151;
    position: static;
    font-size: 14px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-control {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 16px;
}

.form-control:focus {
    border-color: var(--color-sell-dark-turquoise);
    outline: none;
}

/* === Buttons === */
.btn-primary {
    width: 100%;
    border-color: var(--color-sell-dark-turquoise);
    background-color: var(--color-sell-dark-turquoise);
    color: var(--color-white);
    font-family: var(--font-primary);
    font-weight: 700;
    padding: 12px 24px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    border-color: var(--color-sell-turquoise);
    background-color: var(--color-sell-turquoise);
    transform: translateY(-1px);
}

.btn-primary.buy-theme {
    background-color: var(--color-buy-blue);
    border-color: var(--color-buy-blue);
}

.btn-primary.buy-theme:hover {
    background-color: var(--color-buy-cyan);
    border-color: var(--color-buy-cyan);
}

.btn-small {
    padding: 10px 24px;
    font-size: 16px;
    border-radius: 30px;
    background-color: var(--color-sell-dark-turquoise);
    color: var(--color-white);
    text-decoration: none;
    border: none;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.btn-small:hover {
    background-color: #088A9E;
}

/* === Style dla Panelu Admina === */
.admin-container {
    max-width: 960px;
    margin: 40px auto;
    padding: 20px;
    font-family: var(--font-secondary);
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
}

.admin-header h1, .admin-header h2 {
    margin: 0;
    font-family: var(--font-primary);
}

.table-container {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    overflow: hidden;
    margin: 20px 0;
}

.admin-table, .table {
    width: 100%;
    border-collapse: collapse;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.admin-table th, .admin-table td,
.table th, .table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.admin-table th, .table th {
    background-color: #f8f8f8;
    font-family: var(--font-primary);
    font-weight: 700;
}

.admin-table tbody tr:nth-child(even),
.table tbody tr:nth-child(even) {
    background-color: #fdfdfd;
}

.admin-table tbody tr:hover,
.table tbody tr:hover {
    background-color: #f1f1f1;
}

/* Cards */
.card {
    background: white;
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 20px;
}

.card-header {
    background: #f8f9fa;
    border-bottom: 2px solid #e0e0e0;
    padding: 20px;
    font-weight: 600;
    color: #333;
}

.card-body {
    padding: 20px;
}

/* Alerts */
.alert {
    border: none;
    border-radius: var(--border-radius);
    padding: 15px 20px;
    margin: 20px 0;
    font-weight: 500;
}

.alert-success {
    background: #f1f8e9;
    color: #33691e;
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background: #ffebee;
    color: #c62828;
    border-left: 4px solid var(--danger-color);
}

.alert-info {
    background: #e3f2fd;
    color: #1565c0;
    border-left: 4px solid var(--info-color);
}

.alert-warning {
    background: #fff8e1;
    color: #ef6c00;
    border-left: 4px solid var(--warning-color);
}

/* Page Headers */
.page-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #e0e0e0;
}

.page-header h1, .page-header h2 {
    color: #333;
    font-weight: 600;
    margin: 0;
}

/* Footer */
footer {
    background: #333;
    color: #ccc;
    padding: 20px 0;
    text-align: center;
    margin-top: 60px;
    position: relative;
    z-index: 1;
    bottom: auto;
}

footer p {
    margin: 0;
    font-size: 14px;
}

/* === Navigation Enhancements === */
.register-nav-link {
    background: linear-gradient(135deg, var(--color-sell-mint), var(--color-sell-turquoise)) !important;
    color: white !important;
    border-radius: 20px !important;
    padding: 0.5rem 1rem !important;
    transition: all 0.3s ease !important;
}

.register-nav-link:hover {
    background: linear-gradient(135deg, var(--color-sell-turquoise), var(--color-sell-dark-turquoise)) !important;
    transform: translateY(-1px) !important;
    color: white !important;
}

/* Primary custom button */
.btn-primary-custom {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--color-buy-light-blue), var(--color-buy-blue));
    color: white;
    text-decoration: none;
    font-family: var(--font-primary);
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
}

.btn-primary-custom:hover {
    background: linear-gradient(135deg, var(--color-buy-blue), var(--color-buy-cyan));
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 148, 255, 0.3);
    text-decoration: none;
}

/* === Login Styles === */
.login-container {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-links {
    text-align: center;
    margin-top: 20px;
}

.login-links a {
    color: var(--color-text-link);
    text-decoration: none;
}

.login-links a:hover {
    text-decoration: underline;
}

.form-error {
    color: #D8000C;
    background-color: #FFD2D2;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.form-success {
    color: #4F8A10;
    background-color: #DFF2BF;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
}

/* === Admin Action Buttons === */
.btn-action {
    padding: 5px 10px;
    text-decoration: none;
    border-radius: 4px;
    font-size: 14px;
    margin-right: 5px;
}

.btn-edit {
    background-color: var(--color-buy-blue);
    color: white;
}

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

.btn-edit:hover,
.btn-delete:hover {
    opacity: 0.85;
}

.btn-link {
    text-decoration: none;
    color: var(--color-buy-blue);
}

.btn-group-sm .btn {
    padding: 4px 8px;
    font-size: 12px;
}

/* === Mobile Responsive === */
/* === Style dla Hamburgera === */
.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 10000;
}

.hamburger-btn span {
    width: 30px;
    height: 3px;
    background-color: var(--color-text-link);
    border-radius: 5px;
    transition: all 0.3s linear;
}

.hamburger-btn.is-active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}
.hamburger-btn.is-active span:nth-child(2) {
    opacity: 0;
}
.hamburger-btn.is-active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

@media (max-width: 768px) {
    .hamburger-btn {
        display: flex !important;
    }
    
    .main-nav {
        display: none;
        position: absolute;
        top: 65px;
        right: 15px;
        width: 250px;
        background: var(--color-white);
        border-radius: 8px;
        box-shadow: 0 5px 15px rgba(0,0,0,0.15);
        padding: 15px 0;
        flex-direction: column;
        z-index: 9999;
    }

    .main-nav.nav-open {
        display: flex;
    }

    .main-nav ul {
        flex-direction: column;
        text-align: center;
        width: 100%;
    }

    .main-nav li {
        padding: 10px 0;
    }

    .main-nav a {
        font-size: 18px;
        padding: 10px;
        display: block;
    }

    .action-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-action {
        width: 100%;
        max-width: 320px;
        box-sizing: border-box;
        margin-bottom: 10px;
    }

    .hero-section h1 {
        font-size: 32px;
    }
    
    .form-container {
        padding: 20px;
        margin: 20px 15px;
    }
}

/* Animations */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

/* Utility Classes */
.text-primary { color: var(--primary-color) !important; }
.bg-primary { background-color: var(--primary-color) !important; }
.border-primary { border-color: var(--primary-color) !important; }
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0 !important; }
.mt-3 { margin-top: 1rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.p-3 { padding: 1rem !important; }

/* Features Section */
.features-section {
    background: white;
    border-top: 1px solid #e9ecef;
}

.feature-item {
    padding: 2rem 1rem;
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

/* Management Section Styles */
.management-section {
    margin-bottom: 3rem;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e2e8f0;
}

.management-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.management-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0,0,0,0.06);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.management-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0,0,0,0.12);
    text-decoration: none;
    color: inherit;
}

.users-card:hover {
    border-color: #3b82f6;
}

.management-card .card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 0.5rem;
}

.management-card .card-description {
    color: #64748b;
    margin: 0;
    font-size: 0.875rem;
}

.transactions-section {
    margin-top: 3rem;
}

/* Site Footer - fixed bottom bar */
.site-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: #333;
    color: #ccc;
    padding: 10px 0;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
}

.site-footer .container {
    text-align: center;
}

.site-footer .footer-text {
    margin: 0;
    font-size: 0.9rem;
}

/* On mobile, shift footer text left to make room for FAB button */
@media (max-width: 768px) {
    .site-footer .container {
        text-align: left;
        padding-left: 20px;
    }
    
    .site-footer .footer-text {
        max-width: 60%;
    }
}