/* ============================================================
   CT KAIKEN — Design System
   Minimalista · Monocromático · Impactante
   ============================================================ */

:root {
    --black: #000000;
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f4f4f4;
    --gray-200: #e5e5e5;
    --gray-400: #a3a3a3;
    --gray-600: #525252;
    --gray-800: #1f1f1f;
    --gray-900: #0a0a0a;

    --font-display: 'Bebas Neue', 'Impact', 'Oswald', sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', sans-serif;

    --radius: 2px;
    --transition: 220ms cubic-bezier(.2,.7,.2,1);
    --shadow: 0 10px 40px -20px rgba(0,0,0,.35);
}

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

html, body {
    background: var(--white);
    color: var(--black);
    font-family: var(--font-body);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: opacity var(--transition); }
a:hover { opacity: .65; }

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

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 400;
    letter-spacing: .04em;
    text-transform: uppercase;
    line-height: 1;
}

h1 { font-size: clamp(2.5rem, 6vw, 5.5rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 3rem); }
h3 { font-size: 1.4rem; }

/* ============ LANDING PAGE ============ */
.landing__nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 50;
    display: flex; justify-content: space-between; align-items: center;
    padding: 1.25rem 2rem;
    background: rgba(0,0,0,.85); backdrop-filter: blur(12px);
    color: var(--white);
}
.landing__nav .brand__name { font-family: var(--font-display); font-size: 1.5rem; letter-spacing: .15em; }
.landing__nav .btn { border-color: var(--white); color: var(--white); }
.landing__nav .btn:hover { background: var(--white); color: var(--black); opacity: 1; }

.hero {
    min-height: 100vh;
    background: var(--black);
    color: var(--white);
    display: flex; align-items: center; justify-content: center;
    padding: 8rem 1.5rem 4rem;
    position: relative; overflow: hidden;
    background-image:
        linear-gradient(rgba(0,0,0,.55), rgba(0,0,0,.85)),
        repeating-linear-gradient(45deg, #111 0 2px, transparent 2px 24px);
}
.hero__inner { max-width: 1100px; text-align: center; }
.hero__eyebrow {
    display: inline-block; padding: .4rem 1rem;
    border: 1px solid var(--white); font-size: .75rem; letter-spacing: .3em;
    text-transform: uppercase; margin-bottom: 2rem;
}
.hero h1 { font-size: clamp(3rem, 10vw, 8rem); line-height: .9; }
.hero p { max-width: 640px; margin: 2rem auto; opacity: .8; font-size: 1.05rem; }
.hero__cta { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

.section { padding: 6rem 1.5rem; max-width: 1200px; margin: 0 auto; }
.section__title { margin-bottom: 3rem; text-align: center; }

.modalidades { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1px; background: var(--black); border: 1px solid var(--black); }
.modalidade {
    background: var(--white); padding: 3rem 2rem;
    transition: all var(--transition); cursor: pointer; position: relative;
}
.modalidade:hover { background: var(--black); color: var(--white); }
.modalidade__num { font-family: var(--font-display); font-size: .8rem; letter-spacing: .3em; opacity: .4; }
.modalidade h3 { margin: 1.5rem 0 1rem; font-size: 2rem; }
.modalidade p { font-size: .9rem; opacity: .75; }

/* ============ APP (dashboards) ============ */
body.app { background: var(--gray-50); }

.topbar {
    background: var(--black); color: var(--white);
    display: flex; justify-content: space-between; align-items: center;
    padding: 1rem 2rem; flex-wrap: wrap; gap: 1rem;
    position: sticky; top: 0; z-index: 40;
}
.brand a { display: flex; align-items: center; gap: .6rem; }
.brand__mark { font-size: 1.4rem; }
.brand__name { font-family: var(--font-display); font-size: 1.4rem; letter-spacing: .15em; }
.topnav { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.topnav a { font-size: .9rem; text-transform: uppercase; letter-spacing: .1em; }
.topnav__user { opacity: .6; font-size: .85rem; }

.container { max-width: 1200px; margin: 0 auto; padding: 2.5rem 1.5rem 4rem; }

.page-title { margin-bottom: 2rem; }
.page-title h1 { font-size: 2.5rem; }
.page-title p { color: var(--gray-600); margin-top: .4rem; }

.grid { display: grid; gap: 1.5rem; }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }

.card {
    background: var(--white); border: 1px solid var(--gray-200);
    padding: 1.75rem; border-radius: var(--radius);
    transition: border-color var(--transition);
}
.card:hover { border-color: var(--black); }
.card__label { font-size: .7rem; letter-spacing: .25em; text-transform: uppercase; color: var(--gray-600); }
.card__value { font-family: var(--font-display); font-size: 2.5rem; margin-top: .5rem; }
.card h3 { font-size: 1.1rem; margin-bottom: 1rem; }

/* ============ FORMS ============ */
.form { display: flex; flex-direction: column; gap: 1.25rem; }
.form label { font-size: .75rem; letter-spacing: .2em; text-transform: uppercase; color: var(--gray-600); display: block; margin-bottom: .4rem; }
.form input, .form select, .form textarea {
    width: 100%; padding: .85rem 1rem;
    background: var(--white); border: 1px solid var(--gray-200);
    border-radius: var(--radius); font-family: inherit; font-size: 1rem;
    transition: border-color var(--transition);
}
.form input:focus, .form select:focus, .form textarea:focus {
    outline: none; border-color: var(--black);
}

.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: .85rem 1.75rem;
    background: var(--black); color: var(--white);
    border: 1px solid var(--black); border-radius: var(--radius);
    font-size: .85rem; letter-spacing: .2em; text-transform: uppercase;
    font-weight: 600; cursor: pointer;
    transition: all var(--transition);
}
.btn:hover { background: var(--white); color: var(--black); opacity: 1; }
.btn--ghost { background: transparent; color: var(--white); }
.btn--ghost:hover { background: var(--white); color: var(--black); }
.btn--outline { background: var(--white); color: var(--black); }
.btn--outline:hover { background: var(--black); color: var(--white); }
.btn--sm { padding: .5rem 1rem; font-size: .75rem; }

/* ============ LOGIN ============ */
.auth {
    min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr;
    background: var(--white);
}
.auth__brand {
    background: var(--black); color: var(--white);
    padding: 4rem; display: flex; flex-direction: column; justify-content: space-between;
    background-image:
        linear-gradient(rgba(0,0,0,.7), rgba(0,0,0,.9)),
        repeating-linear-gradient(45deg, #111 0 2px, transparent 2px 24px);
}
.auth__brand h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
.auth__brand p { opacity: .7; margin-top: 1rem; max-width: 400px; }
.auth__form { padding: 4rem; display: flex; flex-direction: column; justify-content: center; }
.auth__form-inner { max-width: 400px; width: 100%; margin: 0 auto; }
.auth__form h2 { margin-bottom: 2rem; }
.auth__hint { margin-top: 1.5rem; font-size: .8rem; color: var(--gray-600); }

@media (max-width: 900px) {
    .auth { grid-template-columns: 1fr; }
    .auth__brand { padding: 3rem 2rem; min-height: 40vh; }
    .auth__form { padding: 3rem 2rem; }
}

/* ============ ALERT ============ */
.alert { padding: 1rem 1.25rem; border: 1px solid var(--black); border-radius: var(--radius); font-size: .9rem; margin-bottom: 1rem; }
.alert--error { background: var(--black); color: var(--white); }
.alert--success { background: var(--white); color: var(--black); }

/* ============ TABLE ============ */
.table-wrap { overflow-x: auto; border: 1px solid var(--gray-200); border-radius: var(--radius); }
.table { width: 100%; border-collapse: collapse; background: var(--white); }
.table th, .table td { padding: 1rem; text-align: left; border-bottom: 1px solid var(--gray-200); font-size: .9rem; }
.table th { background: var(--black); color: var(--white); font-size: .75rem; letter-spacing: .15em; text-transform: uppercase; }
.table tr:last-child td { border-bottom: 0; }
.table tr:hover td { background: var(--gray-50); }

.tag { display: inline-block; padding: .25rem .6rem; border: 1px solid var(--black); font-size: .7rem; letter-spacing: .15em; text-transform: uppercase; border-radius: var(--radius); }
.tag--filled { background: var(--black); color: var(--white); }
.tag--danger { background: var(--black); color: var(--white); border-color: var(--black); }

.filters { display: flex; gap: 1rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.filters input, .filters select { flex: 1; min-width: 180px; padding: .75rem 1rem; border: 1px solid var(--gray-200); border-radius: var(--radius); font-family: inherit; }
.filters input:focus, .filters select:focus { outline: none; border-color: var(--black); }

/* ============ CHART ============ */
.chart { width: 100%; height: 260px; background: var(--white); border: 1px solid var(--gray-200); padding: 1rem; border-radius: var(--radius); }

/* ============ FOOTER ============ */
.footer { padding: 2rem 1.5rem; text-align: center; color: var(--gray-600); font-size: .8rem; border-top: 1px solid var(--gray-200); background: var(--white); }

@media (max-width: 600px) {
    .topbar { padding: 1rem; }
    .topnav { gap: .8rem; }
    .topnav__user { display: none; }
    .container { padding: 1.5rem 1rem 3rem; }
    .card__value { font-size: 2rem; }
}

/* Bebas Neue via CDN */
@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Inter:wght@400;500;600;700&display=swap');