:root {
    /* Night sky palette */
    --night-deep: #0a0e27;
    --night-mid: #1a1f3a;
    --night-light: #2d3561;
    --moon-glow: #e8f4f8;
    --text-primary: #e8f4f8;
    --text-secondary: #a5c9d4;
    --nebula-purple: #6a4c93;
    --nebula-pink: #b565a7;
    --input-bg: rgba(26, 31, 58, 0.7);
    --input-border: rgba(232, 244, 248, 0.3);
}

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

body {
    font-family: 'Manrope', sans-serif;
    overflow: hidden;
    background: var(--night-deep);
    color: var(--text-primary);
    height: 100vh;
    width: 100vw;
    
    /* Prevent mobile browser behaviors */
    overscroll-behavior: none;
    -webkit-overflow-scrolling: touch;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.contact-container {
    position: relative;
    width: 100%;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
}

/* ============================================
   SKY LAYER - Starry night with nebula
   ============================================ */

.sky-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        #0a0e27 0%,
        #1a1f3a 50%,
        #2d3561 100%
    );
    z-index: 1;
}

/* Twinkling stars */
.stars {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20% 30%, white, transparent),
        radial-gradient(2px 2px at 60% 70%, white, transparent),
        radial-gradient(1px 1px at 50% 50%, white, transparent),
        radial-gradient(1px 1px at 80% 10%, white, transparent),
        radial-gradient(2px 2px at 90% 60%, white, transparent),
        radial-gradient(1px 1px at 33% 85%, white, transparent),
        radial-gradient(1px 1px at 15% 60%, white, transparent),
        radial-gradient(1px 1px at 45% 20%, white, transparent),
        radial-gradient(2px 2px at 70% 40%, white, transparent),
        radial-gradient(1px 1px at 25% 45%, white, transparent),
        radial-gradient(2px 2px at 85% 25%, white, transparent),
        radial-gradient(1px 1px at 40% 90%, white, transparent),
        radial-gradient(1px 1px at 65% 15%, white, transparent),
        radial-gradient(2px 2px at 10% 75%, white, transparent),
        radial-gradient(1px 1px at 95% 50%, white, transparent),
        radial-gradient(1px 1px at 55% 65%, white, transparent),
        radial-gradient(2px 2px at 30% 35%, white, transparent),
        radial-gradient(1px 1px at 75% 80%, white, transparent),
        radial-gradient(1px 1px at 5% 20%, white, transparent),
        radial-gradient(2px 2px at 88% 88%, white, transparent),
        radial-gradient(1px 1px at 42% 55%, white, transparent),
        radial-gradient(1px 1px at 68% 45%, white, transparent),
        radial-gradient(2px 2px at 12% 38%, white, transparent),
        radial-gradient(1px 1px at 93% 72%, white, transparent),
        radial-gradient(1px 1px at 38% 12%, white, transparent);
    background-size: 
        200% 200%, 200% 200%, 150% 150%, 180% 180%, 220% 220%,
        190% 190%, 210% 210%, 160% 160%, 195% 195%, 175% 175%,
        205% 205%, 185% 185%, 215% 215%, 170% 170%, 225% 225%,
        165% 165%, 230% 230%, 155% 155%, 240% 240%, 145% 145%,
        235% 235%, 168% 168%, 212% 212%, 178% 178%, 192% 192%;
    background-position:
        0% 0%, 30% 40%, 60% 20%, 80% 70%, 10% 50%,
        40% 80%, 70% 30%, 25% 60%, 55% 45%, 15% 25%,
        85% 65%, 35% 15%, 65% 85%, 20% 75%, 90% 35%,
        45% 55%, 75% 10%, 5% 90%, 95% 20%, 50% 70%,
        32% 48%, 78% 62%, 18% 33%, 92% 78%, 48% 8%;
    opacity: 0.8;
    animation: twinkle 15s ease-in-out infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* Nebula canvas */
#nebulaCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.3;
    mix-blend-mode: screen;
}

/* Moon */
.moon {
    position: absolute;
    top: 20%;
    right: 15%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle at 30% 30%, 
        #ffffff 0%,
        #f0f8ff 40%,
        var(--moon-glow) 100%
    );
    border-radius: 50%;
    box-shadow: 
        0 0 50px rgba(232, 244, 248, 0.7),
        0 0 100px rgba(232, 244, 248, 0.4),
        inset -15px -15px 40px rgba(0, 0, 0, 0.15);
    animation: moonGlow 8s ease-in-out infinite;
    z-index: 2;
}

@keyframes moonGlow {
    0%, 100% { 
        box-shadow: 
            0 0 50px rgba(232, 244, 248, 0.7),
            0 0 100px rgba(232, 244, 248, 0.4),
            inset -15px -15px 40px rgba(0, 0, 0, 0.15);
    }
    50% { 
        box-shadow: 
            0 0 70px rgba(232, 244, 248, 0.9),
            0 0 140px rgba(232, 244, 248, 0.5),
            inset -15px -15px 40px rgba(0, 0, 0, 0.15);
    }
}

/* ============================================
   RETURN BUTTON
   ============================================ */

.return-hint {
    position: fixed;
    top: 5vh;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    cursor: pointer;
    user-select: none;
}

.return-hint p {
    font-size: 1.1rem;
    font-weight: 400;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
    text-shadow: 0 0 15px rgba(165, 201, 212, 0.4);
    transition: all 0.3s ease;
    animation: floatDown 3s ease-in-out infinite;
}

.return-hint:hover p {
    color: var(--text-primary);
    text-shadow: 0 0 25px rgba(232, 244, 248, 0.7);
    transform: translateY(5px);
}

@keyframes floatDown {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

/* ============================================
   FORM CONTAINER
   ============================================ */

.form-container {
    position: relative;
    z-index: 10;
    max-width: 600px;
    margin: 15vh auto 10vh;
    padding: 3rem 2.5rem;
    background: rgba(10, 14, 39, 0.85);
    border: 1px solid rgba(232, 244, 248, 0.2);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.3),
        0 0 60px rgba(232, 244, 248, 0.1);
}

.form-container h1 {
    font-size: clamp(2rem, 5vw, 2.5rem);
    font-weight: 400;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    color: var(--text-primary);
    text-align: center;
}

.form-description {
    text-align: center;
    font-size: 1rem;
    font-weight: 300;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    font-style: italic;
}

/* ============================================
   FORM STYLING
   ============================================ */

.form-group {
    margin-bottom: 2rem;
    position: relative;
}

label {
    display: block;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

input, textarea {
    width: 100%;
    padding: 1rem;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: 'Manrope', sans-serif;
    font-size: 1rem;
    font-weight: 300;
    transition: all 0.3s ease;
    resize: vertical;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--moon-glow);
    box-shadow: 0 0 20px rgba(232, 244, 248, 0.2);
    background: rgba(26, 31, 58, 0.9);
}

input::placeholder, textarea::placeholder {
    color: rgba(165, 201, 212, 0.5);
}

textarea {
    min-height: 150px;
    line-height: 1.6;
}

.char-count {
    position: absolute;
    right: 0;
    bottom: -1.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    opacity: 0.7;
}

/* ============================================
   SEND BUTTON
   ============================================ */

button[type="submit"] {
    width: 100%;
    padding: 1.2rem;
    margin-top: 1rem;
    background: linear-gradient(135deg, #4a5a7a 0%, #2d3561 100%);
    border: 1px solid var(--input-border);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: 'Manrope', sans-serif;
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

button[type="submit"]:hover {
    background: linear-gradient(135deg, #5a6a8a 0%, #3d4671 100%);
    box-shadow: 0 0 30px rgba(232, 244, 248, 0.3);
    transform: translateY(-2px);
}

button[type="submit"]:active {
    transform: translateY(0);
}

.moon-icon {
    font-size: 1.3rem;
    display: inline-block;
    animation: rotateMoon 3s linear infinite;
}

@keyframes rotateMoon {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ============================================
   SUCCESS MESSAGE
   ============================================ */

.success-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
}

.success-message.visible {
    opacity: 1;
}

.success-message p {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--moon-glow);
    text-shadow: 0 0 20px rgba(232, 244, 248, 0.6);
}

/* ============================================
   FLYING LETTERS
   ============================================ */

#flyingLetters {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
}

.flying-letter {
    position: absolute;
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--text-primary);
    text-shadow: 0 0 10px rgba(232, 244, 248, 0.7);
    opacity: 1;
    pointer-events: none;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .form-container {
        margin: 12vh 1.5rem 5vh;
        padding: 2rem 1.5rem;
    }

    .moon {
        width: 140px;
        height: 140px;
        top: 15%;
        right: 10%;
    }

    .return-hint p {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .form-container h1 {
        font-size: 1.8rem;
    }

    .moon {
        width: 100px;
        height: 100px;
    }
}