:root {
    --primary: #4f8cff;
    --primary-dark: #3469d9;
    --secondary: #7a5cff;
    --bg: #0b1220;
    --bg-light: #10192d;
    --card: #141f36;
    --text: #ffffff;
    --text-muted: #a9b5d0;
    --success: #1f9d55;
    --warning: #d69e2e;
    --danger: #e53e3e;
    --border: rgba(255,255,255,0.08);
    --radius: 16px;
    --shadow: 0 15px 40px rgba(0,0,0,.25);
    --container: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: linear-gradient(180deg, #09111d 0%, #0c1424 100%);
    color: var(--text);
    font-family: Inter, Arial, sans-serif;
    min-height: 100vh;
    line-height: 1.7;
}

/* ==========================
   CONTAINER
========================== */
.container {
    width: 90%;
    max-width: var(--container);
    margin: auto;
}

/* ==========================
   NAVBAR
========================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(15px);
    background: rgba(8, 13, 24, .9);
    border-bottom: 1px solid var(--border);
}



.navbar .container {

    display: flex;

    justify-content: space-between;

    align-items: center;



    min-height: 80px;

}



.brand a {

    text-decoration: none;

    color: white;



    font-size: 1.8rem;

    font-weight: 700;

}



nav {

    display: flex;

    gap: 30px;

}



nav a {

    color: var(--text-muted);

    text-decoration: none;

    transition: .3s;

}



nav a:hover {

    color: white;

}



/* ==========================

   BUTTONS

========================== */



.btn {

    display: inline-flex;

    align-items: center;

    justify-content: center;



    padding: 14px 24px;



    border-radius: 12px;

    text-decoration: none;



    font-weight: 600;

    transition: .3s;

}



.btn-primary {

    color: white;



    background: linear-gradient(

        135deg,

        var(--primary),

        var(--secondary)

    );



    box-shadow: var(--shadow);

}



.btn-primary:hover {

    transform: translateY(-2px);

}



.btn-outline {

    border: 1px solid var(--border);

    color: white;

}



.btn-outline:hover {

    background: rgba(255,255,255,.05);

}



.btn-secondary {

    background: rgba(255,255,255,.05);

    color: white;

    border: 1px solid var(--border);

}



/* ==========================

   HERO

========================== */



.hero {

    padding: 120px 0;

}



.hero .container {

    max-width: 900px;

}



.badge {

    display: inline-block;



    padding: 8px 18px;



    border-radius: 999px;



    background: rgba(79,140,255,.12);



    border: 1px solid rgba(79,140,255,.2);



    color: #b9d1ff;



    margin-bottom: 25px;

}



.hero h1 {

    font-size: clamp(3rem, 6vw, 5rem);



    line-height: 1.1;



    margin-bottom: 25px;

}



.hero p {

    color: var(--text-muted);



    font-size: 1.15rem;



    max-width: 700px;



    margin-bottom: 30px;

}



/* ==========================

   SECTIONS

========================== */



.section {

    padding: 100px 0;

}



.section h2 {

    font-size: 2.4rem;

    margin-bottom: 20px;

}



.section p {

    color: var(--text-muted);

}



/* ==========================

   GRID

========================== */



.grid {

    display: grid;

    gap: 25px;

    margin-top: 40px;

}



.grid-2 {

    grid-template-columns: repeat(2, 1fr);

}



.grid-3 {

    grid-template-columns: repeat(3, 1fr);

}



.grid-4 {

    grid-template-columns: repeat(4, 1fr);

}



/* ==========================

   CARDS

========================== */



.card {

    background: var(--card);



    border: 1px solid var(--border);



    border-radius: var(--radius);



    padding: 30px;



    transition: .3s;

}



.card:hover {

    transform: translateY(-5px);



    border-color: rgba(79,140,255,.35);

}



.card h3 {

    margin-bottom: 15px;

}



.card p {

    color: var(--text-muted);

}



.card i {

    font-size: 1.8rem;

    margin-bottom: 20px;

    color: var(--primary);

}



/* ==========================

   ALERTS

========================== */



.alert {

    margin: 30px 0;



    display: flex;

    gap: 18px;



    align-items: flex-start;



    padding: 20px;



    border-radius: var(--radius);



    border: 1px solid;

}



.alert i {

    font-size: 1.4rem;

}



.alert strong {

    display: block;

    margin-bottom: 6px;

}



.alert p {

    margin: 0;

}



.alert-success {

    background: rgba(31,157,85,.1);

    border-color: rgba(31,157,85,.3);

}



.alert-warning {

    background: rgba(214,158,46,.1);

    border-color: rgba(214,158,46,.3);

}



.alert-danger {

    background: rgba(229,62,62,.1);

    border-color: rgba(229,62,62,.3);

}



/* ==========================

   REQUIREMENTS LIST

========================== */



.section ul {

    margin-top: 25px;

    list-style: none;

}



.section ul li {

    padding: 15px 20px;



    margin-bottom: 12px;



    background: var(--card);



    border-radius: 12px;



    border: 1px solid var(--border);

}



.section ul li::before {

    content: "✓ ";

    color: #54d48b;

    font-weight: bold;

}



/* ==========================

   STEPS

========================== */



.steps {

    margin-top: 40px;



    display: grid;



    gap: 20px;

}



.step {

    background: var(--card);



    border: 1px solid var(--border);



    border-radius: var(--radius);



    padding: 25px;



    position: relative;



    padding-left: 70px;

}



.step::before {

    content: counter(step);

    counter-increment: step;



    position: absolute;



    left: 20px;

    top: 22px;



    width: 34px;

    height: 34px;



    border-radius: 50%;



    display: flex;

    align-items: center;

    justify-content: center;



    background: linear-gradient(

        135deg,

        var(--primary),

        var(--secondary)

    );



    font-weight: bold;

}



.steps {

    counter-reset: step;

}



/* ==========================

   CTA SECTION

========================== */



.cta-box {

    background: linear-gradient(

        135deg,

        rgba(79,140,255,.15),

        rgba(122,92,255,.12)

    );



    border: 1px solid var(--border);



    border-radius: 24px;



    padding: 40px;



    margin-top: 50px;

}



.cta-box h3 {

    margin-bottom: 15px;

    font-size: 2rem;

}



.cta-box p {

    margin-bottom: 25px;

}



/* ==========================

   FOOTER

========================== */



.footer {

    margin-top: 100px;



    border-top: 1px solid var(--border);



    background: rgba(0,0,0,.15);

}



.footer .container {

    display: flex;



    justify-content: space-between;



    gap: 50px;



    padding: 50px 0;

}



.footer-brand h3 {

    margin-bottom: 10px;

}



.footer-brand p {

    color: var(--text-muted);

}



.footer-links {

    display: flex;

    gap: 25px;

}



.footer-links a {

    color: var(--text-muted);

    text-decoration: none;

}



.footer-links a:hover {

    color: white;

}



.footer-bottom {

    border-top: 1px solid var(--border);



    text-align: center;



    padding: 20px;



    color: var(--text-muted);

}



/* ==========================

   RESPONSIVE

========================== */



@media (max-width: 992px) {



    .grid-4,

    .grid-3,

    .grid-2 {

        grid-template-columns: 1fr;

    }



    .navbar .container {

        flex-wrap: wrap;

        padding: 15px 0;

    }



    nav {

        width: 100%;

        justify-content: center;

        margin-top: 15px;

    }



    .footer .container {

        flex-direction: column;

    }



    .hero {

        padding: 80px 0;

    }



    .hero h1 {

        font-size: 2.8rem;

    }

}



@media (max-width: 576px) {



    nav {

        gap: 15px;

        font-size: .9rem;

    }



    .section {

        padding: 70px 0;

    }



    .hero h1 {

        font-size: 2.2rem;
    }

    .btn {
        width: 100%;
    }
}

/* ==========================
   SIGN IN PAGE
========================== */

.signin-section {
    min-height: calc(100vh - 200px);

    display: flex;
    align-items: center;
    justify-content: center;

    padding: 80px 20px;
}

.signin-card {
    width: 100%;
    max-width: 520px;

    background: #141f36;

    border: 1px solid rgba(255,255,255,.08);

    border-radius: 24px;

    padding: 40px;

    box-shadow: 0 20px 50px rgba(0,0,0,.25);
}

.signin-header {
    text-align: center;
    margin-bottom: 30px;
}

.signin-header h1 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.signin-header p {
    color: #a9b5d0;
    line-height: 1.6;
}

.signin-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.signin-form label {
    font-weight: 600;
}

.signin-form input {
    width: 100%;

    background: rgba(255,255,255,.04);

    border: 1px solid rgba(255,255,255,.1);

    color: white;

    padding: 15px;

    border-radius: 12px;

    font-size: 1rem;

    transition: .3s;
}

.signin-form input:focus {
    outline: none;

    border-color: #4f8cff;

    box-shadow: 0 0 0 3px rgba(79,140,255,.15);
}

.signin-form button {
    margin-top: 10px;

    border: none;

    cursor: pointer;

    padding: 15px;

    border-radius: 12px;

    font-size: 1rem;

    font-weight: 600;

    color: white;

    background: linear-gradient(
        135deg,
        #4f8cff,
        #7a5cff
    );

    transition: .3s;
}

.signin-form button:hover {
    transform: translateY(-2px);
}

.alert {
    margin-top: 20px;

    padding: 16px;

    border-radius: 12px;

    font-size: .95rem;
}

.alert.success {
    background: rgba(34,197,94,.12);
    border: 1px solid rgba(34,197,94,.25);
}

.alert.warning {
    background: rgba(245,158,11,.12);
    border: 1px solid rgba(245,158,11,.25);
}

.alert.danger {
    background: rgba(239,68,68,.12);
    border: 1px solid rgba(239,68,68,.25);
}

.action-link {
    display: block;

    margin-top: 15px;

    text-align: center;

    text-decoration: none;

    color: white;

    padding: 14px;

    border-radius: 12px;

    background: linear-gradient(
        135deg,
        #4f8cff,
        #7a5cff
    );
}