/* ═══════════════════════════════════════════
   ColdMail Pro – Landing Page Styles
   Complementa o Tailwind CSS (CDN)
═══════════════════════════════════════════ */

html {
    scroll-behavior: smooth;
}

body {
    background-color: #080d1a;
    color: #e2e8f0;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

/* ── Gradients ─────────────────────────────── */

.gradient-text {
    background: linear-gradient(135deg, #818cf8, #22d3ee);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-bg {
    background:
        radial-gradient(ellipse at 20% 60%, rgba(99, 102, 241, .18) 0%, transparent 55%),
        radial-gradient(ellipse at 75% 15%, rgba(34, 211, 238, .12) 0%, transparent 45%),
        #080d1a;
}

.section-alt {
    background: rgba(13, 18, 35, .85);
}

.grid-bg {
    background-image:
        linear-gradient(rgba(99, 102, 241, .045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, .045) 1px, transparent 1px);
    background-size: 52px 52px;
}

/* ── Navigation ────────────────────────────── */

.nav-blur {
    backdrop-filter: blur(20px);
    background: rgba(8, 13, 26, .82);
    border-bottom: 1px solid rgba(99, 102, 241, .18);
}

/* ── Buttons ───────────────────────────────── */

.btn-primary {
    background: linear-gradient(135deg, #6366f1, #4f46e5);
    transition: all .25s ease;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #4f46e5, #3730a3);
    box-shadow: 0 0 22px rgba(99, 102, 241, .5);
    transform: translateY(-2px);
}

.btn-whatsapp {
    background: linear-gradient(135deg, #25d366, #128c7e);
    transition: all .25s ease;
}

.btn-whatsapp:hover {
    background: linear-gradient(135deg, #1ebe5a, #0d7a6e);
    box-shadow: 0 0 22px rgba(37, 211, 102, .45);
    transform: translateY(-2px);
}

.btn-outline {
    border: 1px solid rgba(99, 102, 241, .45);
    color: #a5b4fc;
    transition: all .25s ease;
}

.btn-outline:hover {
    border-color: #6366f1;
    background: rgba(99, 102, 241, .12);
    color: #fff;
}

/* ── Cards ─────────────────────────────────── */

.card {
    background: rgba(13, 18, 35, .95);
    border: 1px solid rgba(99, 102, 241, .18);
    transition: all .3s ease;
}

.card:hover {
    border-color: rgba(99, 102, 241, .5);
    box-shadow: 0 0 30px rgba(99, 102, 241, .18);
    transform: translateY(-4px);
}

.icon-box {
    background: linear-gradient(135deg, rgba(99, 102, 241, .2), rgba(34, 211, 238, .1));
    border: 1px solid rgba(99, 102, 241, .28);
}

/* ── Plan card ─────────────────────────────── */

.plan-card {
    background: linear-gradient(145deg, rgba(99, 102, 241, .1), rgba(34, 211, 238, .05));
    border: 1px solid rgba(99, 102, 241, .35);
    transition: all .3s ease;
}

.plan-card:hover {
    border-color: rgba(99, 102, 241, .75);
    box-shadow: 0 0 45px rgba(99, 102, 241, .2);
}

/* ── Section divider ───────────────────────── */

.section-line {
    width: 56px;
    height: 3px;
    background: linear-gradient(90deg, #6366f1, #22d3ee);
    border-radius: 2px;
}

/* ── Step numbers ──────────────────────────── */

.step-num {
    background: linear-gradient(135deg, #6366f1, #22d3ee);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ── Connector line (how-it-works) ─────────── */

.connector {
    height: 2px;
    background: linear-gradient(90deg, rgba(99, 102, 241, .6), rgba(34, 211, 238, .6));
}

/* ── Form inputs ───────────────────────────── */

.form-input {
    background: rgba(255, 255, 255, .05);
    border: 1px solid rgba(99, 102, 241, .28);
    color: #fff;
    transition: all .25s;
}

.form-input:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, .2);
    background: rgba(255, 255, 255, .08);
}

.form-input::placeholder {
    color: rgba(255, 255, 255, .28);
}

.form-input:invalid:not(:placeholder-shown) {
    border-color: rgba(239, 68, 68, .5);
}

/* ── WhatsApp float ────────────────────────── */

#wa-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 9999;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 24px rgba(37, 211, 102, .45);
    animation: waPulse 2.5s infinite;
}

@keyframes waPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, .4); }
    50%       { box-shadow: 0 0 0 12px rgba(37, 211, 102, 0); }
}

/* ── Notification ──────────────────────────── */

.notif {
    transition: all .3s ease;
}

/* ── Mobile menu ───────────────────────────── */

#mobile-menu {
    display: none;
}

#mobile-menu.open {
    display: flex;
}

/* ── Global transitions ────────────────────── */

a,
button {
    transition: all .2s ease;
}