/* ===== ZMIENNE CSS ===== */
:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --dark-bg: #0f172a;
    --light-bg: #f8fafc;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

/* ===== RESETOWANIE I PODSTAWY ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-dark);
    background-color: #fff;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== NAWIGACJA ===== */
.navbar {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: white;
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    position: relative;
}

.nav-links a:hover {
    opacity: 0.8;
}

.nav-links a.active {
    border-bottom: 2px solid white;
    padding-bottom: 0.25rem;
}

.btn-login {
    padding: 0.5rem 1rem;
    border: 2px solid white;
    border-radius: 5px;
    transition: var(--transition);
}

.btn-login:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-register {
    padding: 0.5rem 1rem;
    background: white;
    color: var(--primary-color);
    border-radius: 5px;
    font-weight: 600;
    transition: var(--transition);
}

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

/* ===== SEKCJA HERO ===== */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 100px 20px;
    text-align: center;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 800;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

/* ===== PRZYCISKI ===== */
.btn {
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
}

.btn-block {
    width: 100%;
    display: block;
}

/* ===== SEKCJA FUNKCJI ===== */
.features {
    padding: 80px 20px;
    background: var(--light-bg);
}

.features h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    color: var(--text-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* ===== SEKCJA AUTENTYFIKACJI ===== */
.auth-section {
    min-height: calc(100vh - 300px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
    padding: 40px 20px;
}

.auth-container {
    width: 100%;
    max-width: 450px;
}

.auth-card {
    background: white;
    padding: 3rem;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
}

.auth-card h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--primary-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="password"]:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group.checkbox {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.form-group.checkbox input[type="checkbox"] {
    width: auto;
    margin-right: 0.5rem;
    cursor: pointer;
}

.form-group.checkbox label {
    margin-bottom: 0;
    cursor: pointer;
    font-weight: 500;
}

.password-hint {
    display: block;
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 0.25rem;
}

.error-message {
    display: block;
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    min-height: 1.2rem;
}

.auth-footer {
    margin-top: 2rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.auth-footer p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

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

/* ===== SEKCJA NAGŁÓWKA STRONY ===== */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 60px 20px;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.25rem;
    opacity: 0.9;
}

/* ===== SZCZEGÓŁOWE FUNKCJE ===== */
.features-detailed {
    padding: 80px 20px;
}

.feature-item {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 2rem;
    margin-bottom: 4rem;
    align-items: start;
}

.feature-item:nth-child(even) {
    grid-template-columns: 1fr 150px;
}

.feature-item:nth-child(even) .feature-image {
    order: 2;
}

.feature-item:nth-child(even) .feature-content {
    order: 1;
}

.feature-image {
    font-size: 4rem;
    text-align: center;
}

.feature-content h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-content p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 1.1rem;
}

/* ===== SEKCJA O NAS ===== */
.about-content {
    padding: 80px 20px;
}

.about-section {
    margin-bottom: 4rem;
}

.about-section h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.about-section p {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.values-list {
    list-style: none;
}

.values-list li {
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
    font-size: 1.1rem;
}

.values-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
    font-size: 1.25rem;
}

/* ===== FOOTER ===== */
footer {
    background: var(--text-dark);
    color: white;
    padding: 2rem;
    text-align: center;
    margin-top: 4rem;
}

footer p {
    margin: 0.5rem 0;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

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

    .hero-buttons .btn {
        width: 100%;
    }

    .features h2 {
        font-size: 2rem;
    }

    .feature-item {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .feature-item:nth-child(even) {
        grid-template-columns: 1fr;
    }

    .feature-item:nth-child(even) .feature-image {
        order: unset;
    }

    .feature-item:nth-child(even) .feature-content {
        order: unset;
    }

    .feature-image {
        text-align: left;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .auth-card {
        padding: 2rem;
    }

    .auth-card h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.2rem;
    }

    .nav-links {
        gap: 0.5rem;
    }

    .nav-links a {
        font-size: 0.9rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .btn {
        padding: 0.65rem 1.5rem;
        font-size: 0.9rem;
    }
}