/* ==========================================================
   IACOMOUSAR.COM.BR — COMMON.CSS
   Base compartilhada entre todas as páginas: variáveis, reset,
   header/nav, footer, utilitários de animação e acessibilidade.
   ========================================================== */

:root {
    --primary-gradient: linear-gradient(135deg, #7B2CBF 0%, #00B4D8 100%);
    --purple-ai: #7B2CBF;
    --purple-ai-dark: #5A1F94;
    --cyan-ai: #00B4D8;
    --text-dark: #0F172A;
    --text-muted: #475569;
    --bg-clean: #F8FAFC;
    --card-bg: #FFFFFF;
    --border-color: #E2E8F0;
    --terminal-bg: #090D16;
    --success: #10B981;
    --danger: #EF4444;
    --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.03);
    --shadow-md: 0 12px 28px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 25px 50px rgba(123, 44, 191, 0.08);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 10px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--bg-clean);
    color: var(--text-dark);
}

img { max-width: 100%; height: auto; display: block; }

a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--cyan-ai);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

@keyframes pulse-ring { 0% { transform: scale(0.95); opacity: 0.5; } 50% { transform: scale(1.1); opacity: 1; } 100% { transform: scale(0.95); opacity: 0.5; } }
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }

/* ==========================================
   REVEAL-ON-SCROLL (usado nas seções principais)
========================================== */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================
   HEADER & NAVEGAÇÃO (compartilhado)
========================================== */
header {
    padding: 1.25rem 5%;
    display: flex; justify-content: space-between; align-items: center;
    background: rgba(248, 250, 252, 0.85);
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    position: fixed; width: 100%; top: 0; z-index: 100;
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

.logo-nav { width: clamp(130px, 25vw, 180px); flex-shrink: 0; z-index: 102; }
.logo-nav img { width: 100%; object-fit: contain; }

nav { display: flex; align-items: center; gap: 0.5rem; }
nav a {
    color: var(--text-muted); text-decoration: none;
    padding: 0.45rem 0.9rem; border-radius: 100px;
    font-weight: 600; font-size: 0.88rem;
    transition: all 0.3s ease; white-space: nowrap;
    border: 1px solid transparent;
}
nav a:hover, nav a.active {
    color: var(--purple-ai); background: rgba(123, 44, 191, 0.06);
    border: 1px solid rgba(123, 44, 191, 0.12);
}

.header-ai-badge {
    display: flex; align-items: center; gap: 6px;
    background: rgba(123, 44, 191, 0.08); border: 1px solid rgba(123, 44, 191, 0.2);
    color: var(--purple-ai); font-size: 0.72rem; font-weight: 800;
    letter-spacing: 0.5px; padding: 0.3rem 0.75rem; border-radius: 100px;
    white-space: nowrap; margin-right: 0.5rem;
}
.header-ai-dot { width: 6px; height: 6px; background: var(--cyan-ai); border-radius: 50%; animation: pulse-ring 1.5s infinite; }

.menu-toggle {
    display: none; flex-direction: column; justify-content: space-between;
    width: 24px; height: 18px; background: transparent; border: none; cursor: pointer; z-index: 102;
}
.menu-toggle span { width: 100%; height: 2px; background-color: var(--text-dark); border-radius: 2px; transition: all 0.3s ease-in-out; }
.menu-toggle.active span { background-color: #FFFFFF; }
.menu-toggle.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

@media (max-width: 900px) {
    nav {
        display: flex !important;
        position: fixed !important;
        top: 0 !important; right: 0 !important; bottom: 0 !important;
        width: 280px !important; height: 100vh !important;
        background: #1E293B !important;
        flex-direction: column !important;
        align-items: flex-start !important; justify-content: flex-start !important;
        padding: 7rem 2rem 2rem 2rem !important;
        gap: 1.25rem !important;
        z-index: 9999 !important;
        border-left: 1px solid #334155 !important;
        box-shadow: -10px 0 30px rgba(0,0,0,0.5) !important;
        text-align: left !important;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        visibility: hidden;
    }
    nav.active { transform: translateX(0) !important; visibility: visible; }

    nav a {
        display: block !important; width: 100% !important; text-align: left !important;
        padding: 0.75rem 1rem !important; color: #94A3B8 !important;
        font-size: 1.05rem !important; border-radius: 8px !important;
        background: transparent !important; border: 1px solid transparent !important;
    }
    nav a:hover, nav a.active {
        color: #FFFFFF !important; background: rgba(255, 255, 255, 0.08) !important;
        border-color: rgba(255, 255, 255, 0.1) !important;
    }

    .header-ai-badge { margin-bottom: 1rem !important; margin-right: 0 !important; width: 100% !important; justify-content: center !important; }
    .menu-toggle { display: flex; }
}

/* ==========================================
   FOOTER (compartilhado)
========================================== */
footer { display: block; padding: clamp(2rem, 4vw, 3rem) 5%; text-align: center; border-top: 1px solid var(--border-color); background: var(--card-bg); }
.footer-social-wrap { margin-bottom: 1rem; display: flex; justify-content: center; }
.insta-footer-btn { display: inline-flex; align-items: center; gap: 8px; color: var(--text-muted); text-decoration: none; font-size: 0.85rem; font-weight: 700; padding: 0.5rem 1.2rem; border-radius: 100px; border: 1px solid var(--border-color); transition: all 0.25s ease; background: var(--bg-clean); }
.insta-footer-btn:hover { color: #E1306C; border-color: #E1306C; background: rgba(225, 48, 108, 0.03); transform: translateY(-1px); }
.insta-footer-btn svg { width: 16px; height: 16px; fill: currentColor; }
.footer-ai-note { display: inline-flex; align-items: center; gap: 6px; font-size: 0.78rem; color: var(--text-muted); margin-bottom: 0.75rem; }
.footer-copy { color: var(--text-muted); font-size: 0.82rem; margin-top: 0.4rem; }