/* ========== VARIABLES ========== */
:root {
    --blue: #0B5FA5;
    --blue-deep: #062D50;
    --blue-light: #3B8DD4;
    --green: #2EAE6D;
    --green-light: #4FD98F;
    --green-pale: #E8FBF0;
    --teal: #0EA5A1;
    --navy: #07101F;
    --charcoal: #111827;
    --slate: #1E293B;
    --off-white: #F7F8FA;
    --cream: #FAFBFD;
    --border: #E5E7EB;
    --text: #1F2937;
    --text-mid: #4B5563;
    --text-light: #9CA3AF;
    --white: #FFFFFF;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
}

/* ========== RESETS & TYPOGRAPHY ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text);
    background: var(--white);
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.serif { font-family: 'Instrument Serif', Georgia, serif; }

/* ========== GLOBAL LAYOUT ========== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.section { padding: 100px 0; }
.section-sm { padding: 70px 0; }

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--blue);
    margin-bottom: 14px;
}
.section-tag::before {
    content: '';
    width: 20px; height: 2px;
    background: var(--blue);
    border-radius: 2px;
}

.section-title {
    font-family: 'Instrument Serif', serif;
    font-size: 2.8rem;
    font-weight: 400;
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}
.section-title em { font-style: italic; color: var(--green); }

.section-desc {
    font-size: 1.05rem;
    color: var(--text-mid);
    max-width: 560px;
    line-height: 1.75;
}

.section-head-center {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 56px;
}
.section-head-center .section-desc { margin: 0 auto; }

/* ========== GLOBAL ANIMATIONS ========== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

.floating-wa {
    position: fixed;
    right: 20px;
    bottom: 28px; /* above scroll top button */
    width: 60px;
    height: 60px;
    background: #25D366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    z-index: 9999;
    transition: all 0.3s ease;
    text-decoration: none;
}

.floating-wa:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.3);
}