/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-dark: #0a0e1a;
    --bg-card: rgba(15, 20, 40, 0.85);
    --accent: #00e5ff;
    --accent-glow: rgba(0, 229, 255, 0.35);
    --accent-secondary: #7c4dff;
    --text: #e0e6ed;
    --text-muted: #7a8ba8;
    --danger: #ff4466;
    --radius: 14px;
    --font: 'Outfit', sans-serif;
}

html,
body {
    height: 100%;
    overflow: hidden;
    font-family: var(--font);
    background: var(--bg-dark);
    color: var(--text);
}

/* ===== Animated Stars ===== */
.stars {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.star {
    position: absolute;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0;
    animation: twinkle 3s ease-in-out infinite;
}

@keyframes twinkle {

    0%,
    100% {
        opacity: 0;
        transform: scale(0.5);
    }

    50% {
        opacity: 0.8;
        transform: scale(1);
    }
}

/* ===== Container ===== */
.start-container {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
    gap: 40px;
}

/* ===== Logo ===== */
.logo-wrapper {
    text-align: center;
}

.logo {
    font-size: clamp(3.5rem, 10vw, 6rem);
    font-weight: 800;
    letter-spacing: -2px;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 30px var(--accent-glow));
    animation: float 3s ease-in-out infinite;
}

.logo-dot {
    background: linear-gradient(135deg, #ff4466, #ff8855);
    -webkit-background-clip: text;
    background-clip: text;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.tagline {
    margin-top: 8px;
    font-size: 1rem;
    color: var(--text-muted);
    letter-spacing: 3px;
    text-transform: uppercase;
}

/* ===== Form ===== */
.login-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    width: 100%;
}

.input-group {
    position: relative;
    width: 100%;
}

.input-group input {
    width: 100%;
    padding: 16px 20px;
    font-family: var(--font);
    font-size: 1.05rem;
    color: var(--text);
    background: var(--bg-card);
    border: 2px solid rgba(0, 229, 255, 0.15);
    border-radius: var(--radius);
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.input-group input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
}

.input-group input::placeholder {
    color: var(--text-muted);
}

.input-glow {
    position: absolute;
    inset: -2px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    opacity: 0;
    z-index: -1;
    transition: opacity 0.3s;
    filter: blur(10px);
}

.input-group input:focus~.input-glow {
    opacity: 0.3;
}

.error-msg {
    color: var(--danger);
    font-size: 0.9rem;
    padding: 10px 16px;
    background: rgba(255, 68, 102, 0.1);
    border: 1px solid rgba(255, 68, 102, 0.3);
    border-radius: 8px;
    width: 100%;
    text-align: center;
}

/* ===== Button ===== */
.btn-start {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 16px 32px;
    font-family: var(--font);
    font-size: 1.15rem;
    font-weight: 700;
    color: #0a0e1a;
    background: linear-gradient(135deg, var(--accent), #00b8d4);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    letter-spacing: 2px;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-start:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 35px var(--accent-glow);
}

.btn-start:active {
    transform: translateY(0) scale(0.98);
}

.btn-arrow {
    width: 22px;
    height: 22px;
    transition: transform 0.2s;
}

.btn-start:hover .btn-arrow {
    transform: translateX(4px);
}

/* ===== Features ===== */
.features {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    justify-content: center;
}

.feature {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 40px;
    font-size: 0.85rem;
    color: var(--text-muted);
    backdrop-filter: blur(10px);
}

.feature-icon {
    font-size: 1.1rem;
}

/* ===== Responsive ===== */
@media (max-width: 480px) {
    .start-container {
        gap: 32px;
    }

    .features {
        gap: 12px;
    }

    .feature {
        padding: 8px 14px;
        font-size: 0.8rem;
    }
}