/* ==========================================================================
   CSS VARIABLES & CLINICAL DESIGN SYSTEM (BAFITEX.ICU - VERSION 7)
   ========================================================================== */
:root {
    --clr-primary: #2563eb; /* Blue 600 */
    --clr-primary-light: #60a5fa; /* Blue 400 */
    --clr-primary-dark: #1e3a8a; /* Blue 900 */
    --clr-surface: #ffffff;
    --clr-background: #f8fafc; /* Slate 50 */
    --clr-text-main: #334155; /* Slate 700 */
    --clr-text-heading: #0f172a; /* Slate 900 */
    --clr-border: #e2e8f0;
    --rad-sm: 8px;
    --rad-md: 16px;
    --rad-lg: 24px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.025);
    --transition: all 0.25s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--clr-background);
    color: var(--clr-text-main);
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4 { color: var(--clr-text-heading); font-weight: 700; line-height: 1.2; margin-bottom: 1rem; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { width: 100%; height: auto; display: block; border-radius: var(--rad-sm); }
ul { list-style: none; padding: 0; margin: 0; }

/* ==========================================================================
   LAYOUT CONTAINERS
   ========================================================================== */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-space { padding: 80px 0; }
@media (min-width: 992px) { .section-space { padding: 120px 0; } }

/* ==========================================================================
   STRICT HEADER & MOBILE NAVIGATION
   ========================================================================== */
.site-header {
    background-color: var(--clr-surface);
    border-bottom: 1px solid var(--clr-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
}
.header-wrapper { display: flex; justify-content: space-between; align-items: center; padding: 15px 0; position: relative; }

.logo { font-size: 1.8rem; font-weight: 800; color: var(--clr-primary-dark); letter-spacing: -0.5px; }
.logo span { color: var(--clr-primary); }

/* Hamburger Menu */
.hamburger { display: flex; flex-direction: column; gap: 6px; cursor: pointer; padding: 5px; }
.hamburger .line { width: 28px; height: 3px; background-color: var(--clr-text-heading); border-radius: 2px; transition: var(--transition); }
#menu-toggle { display: none; } /* Checkbox hidden */

/* Desktop Nav */
.desktop-nav { display: none; }
.desktop-nav ul { display: flex; gap: 35px; align-items: center; }
.desktop-nav a { font-weight: 600; color: var(--clr-text-main); font-size: 1.05rem; }
.desktop-nav a:hover, .desktop-nav a.active { color: var(--clr-primary); }

/* Mobile Nav Logic (Strictly hidden by default) */
.mobile-nav {
    display: none; /* REQUIRED HIDDEN BY DEFAULT */
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--clr-surface);
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
    padding: 20px 24px;
    border-top: 1px solid var(--clr-border);
    z-index: 999;
}
.mobile-nav ul { display: flex; flex-direction: column; gap: 0; }
.mobile-nav a { font-weight: 600; color: var(--clr-text-heading); display: block; padding: 15px 0; border-bottom: 1px solid var(--clr-border); }
.mobile-nav li:last-child a { border-bottom: none; }
#menu-toggle:checked ~ .mobile-nav { display: block; } /* Show on click */

@media (min-width: 992px) {
    .hamburger { display: none; }
    .desktop-nav { display: block; }
    .mobile-nav { display: none !important; }
}

/* ==========================================================================
   HERO SECTION (CLINICAL BLOCK)
   ========================================================================== */
.hero-block { background-color: var(--clr-surface); border-bottom: 1px solid var(--clr-border); overflow: hidden; }
.hero-inner { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 60px 0; }
.hero-content { max-width: 800px; margin-bottom: 40px; }
.hero-content h1 { font-size: clamp(2.2rem, 4vw, 3.5rem); margin-bottom: 20px; color: var(--clr-primary-dark); }
.hero-content p { font-size: 1.15rem; margin-bottom: 30px; color: var(--clr-text-main); }
.hero-image-wrapper { width: 100%; max-width: 1000px; margin: 0 auto; position: relative; }
.hero-image-wrapper img { border-radius: var(--rad-lg); box-shadow: var(--shadow-md); }

/* ==========================================================================
   UI COMPONENTS
   ========================================================================== */
.btn { display: inline-flex; justify-content: center; align-items: center; padding: 14px 28px; font-weight: 600; font-size: 1.05rem; border-radius: var(--rad-sm); cursor: pointer; border: 2px solid transparent; text-align: center; }
.btn-blue { background-color: var(--clr-primary); color: #fff; }
.btn-blue:hover { background-color: var(--clr-primary-dark); }
.btn-outline { background-color: transparent; color: var(--clr-primary); border-color: var(--clr-primary); }
.btn-outline:hover { background-color: var(--clr-primary); color: #fff; }

.info-card { background: var(--clr-surface); padding: 40px 30px; border-radius: var(--rad-md); box-shadow: var(--shadow-sm); border: 1px solid var(--clr-border); transition: var(--transition); }
.info-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: var(--clr-primary-light); }
.card-icon-wrap { width: 50px; height: 50px; background: var(--clr-background); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin-bottom: 20px; color: var(--clr-primary); border: 1px solid var(--clr-border); }

.grid-cols-2 { display: grid; grid-template-columns: 1fr; gap: 40px; }
.grid-cols-3 { display: grid; grid-template-columns: 1fr; gap: 30px; }
@media (min-width: 768px) {
    .grid-cols-2 { grid-template-columns: repeat(2, 1fr); align-items: center; }
    .grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}

/* ==========================================================================
   FORMS (EXACTLY 4 FIELDS)
   ========================================================================== */
.contact-wrap { background: var(--clr-surface); padding: 40px; border-radius: var(--rad-md); box-shadow: var(--shadow-md); border: 1px solid var(--clr-border); }
.form-field { margin-bottom: 20px; }
.form-field label { display: block; font-weight: 600; color: var(--clr-text-heading); margin-bottom: 8px; font-size: 0.95rem; }
.form-field input, .form-field textarea { width: 100%; padding: 14px; border: 1px solid var(--clr-border); border-radius: var(--rad-sm); font-family: inherit; font-size: 1rem; background-color: var(--clr-background); transition: var(--transition); }
.form-field input:focus, .form-field textarea:focus { outline: none; border-color: var(--clr-primary); background-color: #fff; box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1); }
.form-field textarea { min-height: 140px; resize: vertical; }

/* ==========================================================================
   FOOTER (WITH CAMPAIGN REQUIREMENTS)
   ========================================================================== */
.site-footer { background-color: var(--clr-primary-dark); color: #cbd5e1; padding: 80px 0 30px; margin-top: 60px; }
.footer-cols { display: grid; grid-template-columns: 1fr; gap: 40px; margin-bottom: 50px; }
@media (min-width: 768px) { .footer-cols { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); } }
.footer-heading { color: #fff; font-size: 1.2rem; margin-bottom: 20px; }
.footer-nav li { margin-bottom: 12px; }
.footer-nav a:hover { color: #fff; text-decoration: underline; }
.footer-campaign-box { background: rgba(255,255,255,0.05); padding: 20px; border-radius: var(--rad-sm); border: 1px solid rgba(255,255,255,0.1); margin-top: 20px; }
.footer-campaign-box p { font-size: 0.9rem; margin-bottom: 0; line-height: 1.5; color: #94a3b8; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 30px; text-align: center; font-size: 0.9rem; }

/* ==========================================================================
   COOKIE BANNER
   ========================================================================== */
#cookie-law { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(0); width: 90%; max-width: 1000px; background: var(--clr-surface); padding: 20px 24px; border-radius: var(--rad-md); box-shadow: 0 20px 25px -5px rgba(0,0,0,0.2); display: flex; flex-direction: column; gap: 15px; z-index: 9999; border: 1px solid var(--clr-border); transition: transform 0.4s ease, opacity 0.4s ease; }
#cookie-law.hidden { transform: translateX(-50%) translateY(150%); opacity: 0; pointer-events: none; }
#cookie-law p { font-size: 0.9rem; color: var(--clr-text-main); margin: 0; line-height: 1.5; }
.cookie-buttons { display: flex; gap: 10px; }
.cookie-btn { padding: 10px 20px; border: none; border-radius: var(--rad-sm); font-weight: 600; cursor: pointer; transition: 0.2s; font-size: 0.9rem; }
.btn-agree { background: var(--clr-primary); color: #fff; }
.btn-agree:hover { background: var(--clr-primary-dark); }
@media (min-width: 768px) { #cookie-law { flex-direction: row; align-items: center; justify-content: space-between; } .cookie-buttons { flex-shrink: 0; } }