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

:root {
    --bg-color: #000000;
    --accent-white: #ffffff;
    --dim-glow: rgba(255, 255, 255, 0.15);
    --strong-glow: rgba(255, 255, 255, 0.3);
    --text: #ffffff;
    --glow: 0 0 20px rgba(255, 255, 255, 0.8);
    --transition: 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    -webkit-tap-highlight-color: transparent;
    cursor: none !important;
}

body {
    background-color: var(--bg-color);
    color: var(--accent-white);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.bg-photo-layer {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    filter: brightness(0.35) blur(4px);
    pointer-events: none;
    z-index: 0;
    transition: opacity 1s ease;
}

.bg-photo-layer.looping {
    animation: bgPhotoCycle 5s ease-in-out infinite;
}

.cursor-dot, .cursor-trace {
    position: fixed;
    top: 0; left: 0;
    border-radius: 50%;
    pointer-events: none;
    z-index: 2147483647 !important;
    transform: translate(-50%, -50%);
    mix-blend-mode: difference;
    background-color: #ffffff;
}
.cursor-dot {
    width: 8px; height: 8px;
    background: var(--text);
    transition: width 0.3s, height 0.3s, background 0.3s;
}
.cursor-trace {
    width: 24px; height: 24px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    transition: width 0.3s, height 0.3s, box-shadow 0.3s;
}
.cursor-hover .cursor-dot {
    width: 40px; height: 40px;
    background: transparent;
    border: 1px solid var(--text);
    box-shadow: var(--glow);
}
.cursor-hover .cursor-trace { opacity: 0; }

.exit-btn {
    position: fixed;
    top: 24px;
    right: 28px;
    z-index: 9000;
    background: #000000;
    border: 1px solid var(--border-bright);
    color: var(--text-secondary);
    padding: 8px 18px;
    border-radius: 30px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.25s ease;
    text-decoration: none;
}
.exit-btn:hover {
    border-color: rgba(255, 255, 255, 0.5);
    color: #ffffff;
    background: rgba(255, 255, 255, 0.02);
}
.exit-btn-icon {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
}

.app-container {
    width: 100%;
    max-width: 380px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    position: relative;
    z-index: 1;
}

.photo-wrapper {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    box-shadow: 0 0 20px var(--dim-glow);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    animation: fadeIn 0.8s ease forwards 1s;
}

.photo-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.photo-wrapper:hover img {
    transform: scale(1.08);
}

.photo-wrapper:hover {
    box-shadow: 0 0 25px var(--strong-glow);
    border-color: rgba(255, 255, 255, 0.082);
}

.logo-center {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--accent-white);
    text-shadow: 0 0 10px var(--dim-glow);
    opacity: 0;
    animation: fadeIn 0.8s ease forwards 1.3s;
}

.logo-center span {
    animation: textBreathe 4s ease-in-out infinite;
}

.input-group {
    width: 100%;
    position: relative;
    opacity: 0;
    animation: fadeIn 0.8s ease forwards 1.5s;
}

.password-input {
    width: 100%;
    padding: 18px 50px 18px 24px;
    font-size: 1rem;
    color: var(--accent-white);
    background: rgba(20, 20, 20, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 35px;
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.password-input::placeholder {
    color: rgba(255, 255, 255, 0.3);
    transition: opacity 0.3s ease;
}

.password-input:focus {
    border-color: rgba(255, 255, 255, 0.7);
    box-shadow: 0 0 15px var(--dim-glow);
    background: #000;
}

.password-input:focus::placeholder {
    opacity: 0;
}

.eye-icon {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    fill: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: fill 0.3s ease;
}

.eye-icon:hover {
    fill: var(--accent-white);
}

.login-btn {
    width: 100%;
    padding: 18px;
    font-size: 1rem;
    font-weight: 600;
    color: #000;
    background: var(--accent-white);
    border: none;
    border-radius: 35px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 10px var(--dim-glow);
    opacity: 0;
    animation: fadeIn 0.8s ease forwards 1.9s;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease, box-shadow 0.2s ease;
}

.login-btn:hover {
    background: #e6e6e6;
    box-shadow: 0 0 20px var(--strong-glow);
}

.login-btn:active {
    background: #cccccc;
    box-shadow: 0 0 8px var(--dim-glow);
}

.password-input.error {
    border-color: #ff3b30 !important;
    box-shadow: 0 0 15px rgba(255, 59, 48, 0.5) !important;
    animation: shake 0.4s ease-in-out;
}

.login-btn span.ripple {
    position: absolute;
    border-radius: 50%;
    transform: scale(0);
    animation: ripple-anim 0.6s linear;
    background-color: rgba(0, 0, 0, 0.2); 
    pointer-events: none;
}

@keyframes ripple-anim {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes bgPhotoCycle {
    0%, 100% { opacity: 0; }
    50% { opacity: 0.25; }
}

@keyframes textBreathe {
    0%, 100% { text-shadow: 0 0 10px var(--dim-glow); }
    50% { text-shadow: 0 0 18px var(--strong-glow); }
}

body.fade-out {
    opacity: 0;
    pointer-events: none;
}

@media (max-width: 768px) {
    * { cursor: auto !important; }
    .cursor-dot, .cursor-trace { display: none; }
    .logout-btn { top: 20px; right: 20px; padding: 9px 16px; font-size: 0.75rem; }
}