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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    font-family: 'Inter', system-ui, sans-serif;
    background-color: #030d18;
    color: #ffffff;
    overflow-x: hidden;
}

::selection {
    background: rgba(79, 209, 197, 0.3);
    color: #ffffff;
}

/* ===== Scroll Reveal (Progressive Enhancement) ===== */
.scroll-reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.7s ease, transform 0.7s ease;
}

@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }

    .scroll-reveal:not(.revealed) {
        opacity: 0;
        transform: translateY(32px);
    }
}

/* ===== Animations ===== */
@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(3deg); }
}

@keyframes float-delay {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-14px); }
}

@keyframes rotate-slow {
    from { transform: rotate(12deg); }
    to { transform: rotate(42deg); }
}

@keyframes rotate-slow-reverse {
    from { transform: rotate(-12deg); }
    to { transform: rotate(18deg); }
}

@keyframes pulse-slow {
    0%, 100% { opacity: 0.15; transform: scale(1); }
    50% { opacity: 0.3; transform: scale(1.1); }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

.animate-float-delay {
    animation: float-delay 5s ease-in-out infinite 1s;
}

.animate-rotate-slow {
    animation: rotate-slow 20s linear infinite;
}

.animate-rotate-slow-reverse {
    animation: rotate-slow-reverse 15s linear infinite;
}

.animate-pulse-slow {
    animation: pulse-slow 4s ease-in-out infinite;
}

/* ===== Mobile Menu ===== */
#mobileMenu.open {
    opacity: 1;
    pointer-events: all;
}

#mobileMenu:not(.open) {
    opacity: 0;
    pointer-events: none;
}

.mobile-link {
    opacity: 1;
    transform: none;
    transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s ease;
}

.mobile-link:hover {
    transform: scale(1.05);
}

/* ===== Navbar Glass Effect ===== */
#navbar.scrolled {
    background: rgba(3, 13, 24, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* ===== Menu Lines Animation ===== */
.menu-line {
    display: block;
}

#menuBtn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

#menuBtn.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

#menuBtn.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
    width: 1.25rem;
}

/* ===== Form Select Arrow ===== */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%234fd1c5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* ===== Smooth Focus Ring ===== */
input:focus,
textarea:focus,
select:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(79, 209, 197, 0.15);
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #030d18;
}

::-webkit-scrollbar-thumb {
    background: rgba(79, 209, 197, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(79, 209, 197, 0.5);
}

/* ===== Gallery Hover Overlay ===== */
.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 1rem;
}

.gallery-item img {
    transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

/* ===== Service Card Hover ===== */
.service-card {
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                box-shadow 0.4s ease,
                border-color 0.4s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(79, 209, 197, 0.1);
}

/* ===== Button Hover Glow ===== */
.btn-glow:hover {
    box-shadow: 0 0 40px rgba(79, 209, 197, 0.3);
}

/* ===== Image Aspect Ratios ===== */
.aspect-portrait {
    aspect-ratio: 4 / 5;
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .scroll-reveal:not(.revealed) {
        opacity: 1;
        transform: none;
    }
}