/* ===========================
   LA PROFE KAREN - MAIN STYLES
   Color Scheme: #00C4FF (Cyan), Black, White
   =========================== */

/* ROOT & GENERAL */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #000;
    background: #f5f5f5;
}

a {
    text-decoration: none;
    color: #00C4FF;
    transition: all 0.3s ease;
}

a:hover {
    color: #0099cc;
}

/* ===== HEADER & NAVBAR ===== */
header {
    background: linear-gradient(135deg, #000000 0%, #0a2a3a 100%);
  color: white;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 196, 255, 0.3), 0 0 30px rgba(0, 196, 255, 0.1);
  border-bottom: 2px solid #00C4FF;
  backdrop-filter: blur(10px);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: #00C4FF;
    transition: all 0.3s ease;
}

.logo:hover {
    text-shadow: 0 0 10px rgba(0, 196, 255, 0.5);
}

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

.nav-menu a {
    color: white;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    padding-bottom: 0.5rem;
    transition: all 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #00C4FF;
      text-shadow: 0 0 8px rgba(0, 196, 255, 0.6);
  box-shadow: inset 0 -3px 0 #00C4FF;
    border-bottom: 2px solid #00C4FF;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 0.4rem;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #00C4FF;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: #00C4FF;
    color: #000;
    border: 2px solid #00C4FF;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.btn:hover {
    background: transparent;
    color: #00C4FF;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 196, 255, 0.4);
}

.btn-primary {
    background: #00C4FF;
    color: #000;
}

.btn-secondary {
    background: transparent;
    color: #00C4FF;
    border-color: #00C4FF;
}

.btn-dark {
    background: #000;
    color: #00C4FF;
    border-color: #00C4FF;
}

/* ===== CARDS ===== */
.card {
    background: white;
    border: 2px solid #00C4FF;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 15px rgba(0, 196, 255, 0.15);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 196, 255, 0.25);
}

.card-header {
    border-bottom: 2px solid #00C4FF;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.card-title {
    color: #000;
    font-size: 1.5rem;
    font-weight: bold;
}

/* ===== FORMS ===== */
input[type="text"],
input[type="email"],
input[type="password"],
textarea,
select {
    width: 100%;
    padding: 0.8rem;
    margin: 0.5rem 0;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
textarea:focus,
select:focus {
    border-color: #00C4FF;
    outline: none;
    box-shadow: 0 0 8px rgba(0, 196, 255, 0.3);
}

.form-group {
    margin-bottom: 1rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #000;
}

/* ===== CONTAINER ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 3rem 0;
}

/* ===== GRID ===== */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

/* ===== FOOTER ===== */
footer {
    background: #000;
    color: white;
    padding: 2rem;
    text-align: center;
    border-top: 3px solid #00C4FF;
}

footer p {
    margin: 0.5rem 0;
}

footer a {
    color: #00C4FF;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    /* Hamburger Menu */
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: absolute;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: #000;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        gap: 0;
        box-shadow: 0 10px 27px rgba(0, 196, 255, 0.1);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu a {
        display: block;
        padding: 1.5rem 0;
        border: none;
        border-bottom: 1px solid #00C4FF;
    }
    
    /* Navbar Container */
    .navbar {
        padding: 1rem;
    }
    
    /* Typography */
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    /* Grid */
    .grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    /* Container */
    .container {
        padding: 0 1rem;
    }
    
    /* Section */
    .section {
        padding: 2rem 0;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 0.8rem 0.5rem;
    }
    
    .logo {
        font-size: 1.3rem;
    }
    
    .btn {
        width: 100%;
        margin: 0.5rem 0;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    h2 {
        font-size: 1.2rem;
    }
}

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

.text-cyan {
    color: #00C4FF;
}

.text-dark {
    color: #000;
}

.bg-cyan {
    background: #00C4FF;
    color: #000;
}

.bg-dark {
    background: #000;
    color: white;
}

.bg-white {
    background: white;
}

.shadow {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.border-cyan {
    border: 2px solid #00C4FF;
}

.rounded {
    border-radius: 12px;
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-3 {
    margin-bottom: 2rem;
}

.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mt-3 {
    margin-top: 2rem;
}

.p-1 {
    padding: 0.5rem;
}

.p-2 {
    padding: 1rem;
}

.p-3 {
    padding: 2rem;
}