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

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

:root {

    --bg: #07111f;

    --surface: rgba(18, 27, 44, 0.72);
    --surface-light: rgba(31, 41, 55, 0.75);

    --primary: #7c8cff;
    --primary-dark: #5b5ff6;

    --secondary: #42d392;

    --text: #f5f7ff;
    --muted: #a8b3cf;

    --border: rgba(255, 255, 255, 0.08);

    --danger: #ef4444;

    --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

/* Body */

body {

    font-family: 'Inter', sans-serif;

    min-height: 100vh;

    color: var(--text);

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

    padding: 30px;

    background:
        radial-gradient(circle at top left, #243b74 0%, transparent 30%),
        radial-gradient(circle at bottom right, #0f766e 0%, transparent 25%),
        var(--bg);

    overflow-x: hidden;
}

body::before {
    content: '';

    position: fixed;
    inset: 0;

    backdrop-filter: blur(80px);

    pointer-events: none;
}

/* Container */

.container {

    width: 100%;
    max-width: 1200px;

    display: grid;
    grid-template-columns: 1fr 1fr;

    background: var(--surface);

    border: 1px solid var(--border);
    border-radius: 36px;

    overflow: hidden;

    backdrop-filter: blur(24px);

    box-shadow: var(--shadow);

    position: relative;
    z-index: 1;
}

/* Left Side */

.features-side {

    padding: 60px;

    background:
        linear-gradient(
            160deg,
            rgba(124, 140, 255, 0.08),
            rgba(31, 41, 55, 0.65)
        );

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

    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* Logo */

.logo-area {
    display: flex;
    align-items: center;
    gap: 18px;
}

.logo img {

    width: 70px;

    padding: 10px;

    border-radius: 22px;

    background:
        linear-gradient(
            145deg,
            rgba(124, 140, 255, 0.18),
            rgba(66, 211, 146, 0.08)
        );

    border: 1px solid rgba(255, 255, 255, 0.08);

    box-shadow:
        0 0 25px rgba(124, 140, 255, .35),
        0 0 60px rgba(124, 140, 255, .18),
        inset 0 0 18px rgba(255, 255, 255, .04);

    backdrop-filter: blur(12px);

    transition: .3s ease;
}

.logo img:hover {

    transform: translateY(-3px) scale(1.03);

    box-shadow:
        0 0 35px rgba(124, 140, 255, .5),
        0 0 80px rgba(66, 211, 146, .18);
}

.brand-name {

    font-family: 'Space Grotesk', sans-serif;

    font-size: 2.2rem;
    font-weight: 700;

    letter-spacing: -1px;
}

/* Features */

.features-list {

    list-style: none;

    display: flex;
    flex-direction: column;

    gap: 28px;

    margin-top: 70px;
}

.feature-item {

    display: flex;
    gap: 18px;

    align-items: flex-start;

    padding: 22px;

    border-radius: 22px;

    background: rgba(255, 255, 255, 0.03);

    border: 1px solid rgba(255, 255, 255, 0.05);

    backdrop-filter: blur(10px);

    transition: .3s ease;
}

.feature-item:hover {

    transform: translateY(-4px);

    border-color: rgba(124, 140, 255, .35);

    background: rgba(255, 255, 255, 0.05);
}

.feature-icon {

    font-size: 1.8rem;

    filter: drop-shadow(
        0 0 12px rgba(124, 140, 255, .35)
    );
}

.feature-item span {

    line-height: 1.7;

    font-weight: 500;

    color: var(--text);
}

/* Right Side */

.auth-side {

    padding: 60px;

    background: rgba(15, 23, 42, 0.45);

    backdrop-filter: blur(20px);
}

/* Titles */

.auth-title {

    font-family: 'Space Grotesk', sans-serif;

    font-size: 2.5rem;

    letter-spacing: -1px;

    margin-bottom: 36px;
}

/* Form */

.form-group {
    margin-bottom: 22px;
}

.form-label {

    display: block;

    margin-bottom: 10px;

    color: var(--muted);

    font-size: .95rem;

    font-weight: 600;
}

.form-input {

    width: 100%;

    padding: 18px;

    border-radius: 18px;

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

    background: rgba(255, 255, 255, 0.04);

    color: var(--text);

    font-size: 1rem;

    outline: none;

    transition: .25s ease;

    backdrop-filter: blur(10px);
}

.form-input::placeholder {
    color: #7b879f;
}

.form-input:focus {

    border-color: rgba(124, 140, 255, .55);

    box-shadow:
        0 0 0 4px rgba(124, 140, 255, .12),
        0 12px 30px rgba(124, 140, 255, .15);

    background: rgba(255, 255, 255, 0.06);
}

/* Buttons */

.btn-login,
.btn-create {

    width: 100%;

    padding: 18px;

    border: none;
    border-radius: 18px;

    background:
        linear-gradient(
            135deg,
            var(--primary),
            var(--primary-dark)
        );

    color: white;

    font-weight: 700;

    font-size: 1rem;

    cursor: pointer;

    transition: .3s ease;

    text-decoration: none;

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

    box-shadow:
        0 12px 30px rgba(124, 140, 255, .28);
}

.btn-login:hover,
.btn-create:hover {

    transform: translateY(-4px);

    box-shadow:
        0 18px 45px rgba(124, 140, 255, .4);
}

/* Divider */

.divider {

    text-align: center;

    color: var(--muted);

    margin: 28px 0;

    position: relative;
}

.divider span {

    background: rgba(15, 23, 42, .9);

    padding: 0 14px;

    position: relative;
    z-index: 1;
}

.divider::before {

    content: '';

    position: absolute;

    left: 0;
    right: 0;
    top: 50%;

    height: 1px;

    background: var(--border);
}

/* Messages */

.message,
/* Error */

.field-error,
.input-error {

    font-size: .9rem;

    color: #ff6b6b;

    margin-top: 8px;

    font-weight: 500;
}

/* Success */

.message {

    font-size: .95rem;

    color: #42d392;

    margin-top: 10px;

    font-weight: 600;

    text-shadow:
        0 0 12px rgba(66, 211, 146, .35);
}

/* Links */

.btn-create-link {
    text-decoration: none;
}

/* Responsive */

@media(max-width: 900px) {

    .container {
        grid-template-columns: 1fr;
    }

    .features-side {
        display: none;
    }

    .auth-side {
        padding: 40px 26px;
    }

    .auth-title {
        font-size: 2rem;
    }

}