@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css');

:root {
  /* Palette: Professional Blue */
  --primary-color: #2980B9;
  --secondary-color: #3498DB;
  --accent-color: #1ABC9C;
  --light-color: #ECF0F1;
  --dark-color: #2C3E50;
  --gradient-primary: linear-gradient(180deg, #2980B9 0%, #3498DB 100%);
  --hover-color: #2573A7;
  --background-color: #F4F6F7;
  --text-color: #34495E;
  --border-color: rgba(41, 128, 185, 0.2);
  --divider-color: rgba(52, 152, 219, 0.15);
  --shadow-color: rgba(44, 62, 80, 0.1);
  --highlight-color: #E74C3C; /* Contrast Red */
  
  --main-font: 'Roboto Condensed', sans-serif;
  --alt-font: 'Open Sans', sans-serif;
}

html { scroll-behavior: smooth; }
body { font-family: var(--alt-font); color: var(--text-color); background-color: var(--background-color); overflow-x: hidden; }
h1, h2, h3, h4, h5, h6 { font-family: var(--main-font); text-transform: uppercase; }

/* Neumorphism Clean */
.clean-card {
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 10px 20px var(--shadow-color);
    border: 1px solid var(--light-color);
    transition: all 0.3s ease;
}
.clean-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px var(--shadow-color);
    border-color: var(--secondary-color);
}

/* Buttons */
.btn-tech {
    background: var(--primary-color);
    color: white;
    padding: 12px 24px;
    border-radius: 4px;
    letter-spacing: 1px;
    font-weight: 700;
    transition: background 0.3s;
    box-shadow: 0 4px 6px rgba(41, 128, 185, 0.3);
}
.btn-tech:hover {
    background: var(--dark-color);
}

.hero-bg {
    background: linear-gradient(rgba(44, 62, 80, 0.8), rgba(44, 62, 80, 0.8)), url('./img/bg.jpg') no-repeat center center/cover;
}

/* Header & Mobile Menu */
header { background-color: #ffffff; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
#menu-btn:checked ~ ul { display: flex; }

/* Logo Adjustments */
header img[alt="logo"] { filter: none; } /* Dark logo on white header */
footer img[alt="logo"] { filter: brightness(0) invert(1); } /* White logo on dark footer */

/* Form */
input, textarea {
    background: #F8FAFB;
    border: 1px solid #D6DBDF;
    transition: border 0.3s;
}
input:focus, textarea:focus {
    border-color: var(--secondary-color);
    outline: none;
    background: #fff;
}