/* ==================== HEADER ==================== */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 0.6rem 2rem;
    background: transparent;
    backdrop-filter: blur(20px);
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

body.light-mode header,
header.light-mode {
    background: linear-gradient(180deg, rgba(139, 92, 246, 0.1) 0%, rgba(248, 250, 252, 0.6) 100%);
    border-bottom: 1px solid rgba(139, 92, 246, 0.15);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo:hover .logo-text {
    filter: drop-shadow(0 0 15px rgba(255, 77, 77, 0.8));
}

.logo-icon {
    width: 36px;
    height: 36px;
    animation: float 4s ease-in-out infinite;
    filter: drop-shadow(0 0 10px rgba(255, 77, 77, 0.5));
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.logo-icon .claw-left {
    animation: claw-shake-left 0.8s ease-in-out infinite;
    transform-origin: 25px 50px;
}

.logo-icon .claw-right {
    animation: claw-shake-right 0.8s ease-in-out infinite;
    transform-origin: 95px 50px;
}

.logo-icon:hover .eye-left,
.logo-icon:hover .eye-right {
    animation: eye-rotate 2s ease-in-out infinite;
}

.logo-icon:hover .eye-pupil-left,
.logo-icon:hover .eye-pupil-right {
    animation: pupil-move 2s ease-in-out infinite;
}

@keyframes claw-shake-left {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-15deg); }
    75% { transform: rotate(15deg); }
}

@keyframes claw-shake-right {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(15deg); }
    75% { transform: rotate(-15deg); }
}

@keyframes eye-rotate {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-2px); }
    75% { transform: translateX(2px); }
}

@keyframes pupil-move {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(-3px, 0); }
    75% { transform: translate(3px, 0); }
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-3px) rotate(-2deg); }
    50% { transform: translateY(-1px) rotate(0deg); }
    75% { transform: translateY(-4px) rotate(2deg); }
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    font-family: 'Clash Display', sans-serif;
    background: linear-gradient(135deg, #ff4d4d, #00e5cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-flex;
    align-items: center;
    line-height: 1;
    gap: 0;
}

body.light-mode .logo-text {
    background: linear-gradient(135deg, #ff4d4d, #00e5cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text .e-colored {
    font-size: 2.4em;
    font-weight: 700;
    background: linear-gradient(135deg, #ff4d4d, #00e5cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    margin-top: -10px;
}

body.light-mode .logo-text .e-colored {
    background: linear-gradient(135deg, #ff4d4d, #00e5cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    margin-top: 0;
}

.logo-text .logo-gradient {
    background: linear-gradient(135deg, #ff4d4d, #00e5cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

body.light-mode .logo-text .logo-gradient {
    background: linear-gradient(135deg, #ff4d4d, #00e5cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.theme-toggle {
    background: transparent;
    border: 1px solid var(--dark-border);
    border-radius: 8px;
    padding: 8px;
    cursor: pointer;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.theme-toggle:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

.nav-controls select {
    padding: 8px 12px;
    border-radius: 8px;
    background: transparent;
    border: 1px solid var(--dark-border);
    color: var(--text-dark);
    cursor: pointer;
    font-size: 0.9rem;
}

.nav-controls select:hover {
    border-color: var(--primary);
}

.btn {
    padding: 10px 20px;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    font-size: 0.95rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.4);
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
}

/* Small lobster following mouse */
#smallLobster {
    position: fixed;
    width: 48px;
    height: 48px;
    z-index: 9999;
    pointer-events: none;
    filter: drop-shadow(0 0 12px rgba(255, 26, 26, 0.7));
    transition: all 0.1s ease;
}

#smallLobster svg {
    width: 100%;
    height: 100%;
}