/* ===================================
   PAGE TRANSITIONS & LOADING STYLES
   =================================== */

/* Page fade transition */
html {
    transition: opacity 300ms ease-out;
    opacity: 1;
}

html.page-transition-out {
    opacity: 0;
}

/* ===================================
   LOADING OVERLAY STYLES
   =================================== */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #2c3e50 0%, #1a2332 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    backdrop-filter: blur(5px);
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    animation: fadeInUp 0.6s ease-out;
}

/* ===================================
   LOADING SPINNER
   =================================== */

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top: 4px solid #f6881d;
    border-radius: 50%;
    animation: spinnerRotate 1s linear infinite;
}

@keyframes spinnerRotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Loading text animation */
.loading-text {
    color: #ffffff;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 2px;
    animation: textPulse 1.5s ease-in-out infinite;
}

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

/* ===================================
   FADE IN/OUT ANIMATIONS
   =================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeOutDown {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(30px);
    }
}

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

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

/* ===================================
   SLIDE ANIMATIONS
   =================================== */

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOutLeft {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(-60px);
    }
}

@keyframes slideOutRight {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(60px);
    }
}

/* ===================================
   SCALE ANIMATIONS
   =================================== */

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes scaleOut {
    from {
        opacity: 1;
        transform: scale(1);
    }
    to {
        opacity: 0;
        transform: scale(0.95);
    }
}

/* ===================================
   PAGE LOADED STATE
   =================================== */

body.page-loaded {
    animation: fadeIn 0.6s ease-out;
}

/* ===================================
   ELEMENT ANIMATIONS ON SCROLL
   =================================== */

.scroll-animate {
    animation: slideUp 0.6s ease-out forwards;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   STAGGERED ANIMATIONS
   =================================== */

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }
.stagger-6 { animation-delay: 0.6s; }

/* ===================================
   NAVBAR TRANSITION EFFECTS
   =================================== */

.navbar {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolled {
    background: rgba(44, 62, 80, 0.95) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* Navbar link transitions */
.navbar-nav-desktop .nav-link {
    transition: all 0.3s ease;
    position: relative;
}

.navbar-nav-desktop .nav-link::before {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #f6881d 0%, #ff9a76 100%);
    transition: width 0.3s ease;
}

.navbar-nav-desktop .nav-link:hover::before {
    width: 100%;
}

/* ===================================
   OFFCANVAS TRANSITIONS
   =================================== */

.offcanvas {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.offcanvas-backdrop {
    transition: opacity 0.3s ease;
}

/* ===================================
   CARD TRANSITION EFFECTS
   =================================== */

.solutions-feature-card,
.service-card,
.project-card-wrapper,
.feature-item,
.portfolio-item {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.solutions-feature-card:hover,
.service-card:hover,
.project-card-wrapper:hover,
.feature-item:hover,
.portfolio-item:hover {
    animation: cardHover 0.3s ease-out;
}

@keyframes cardHover {
    0% {
        transform: translateY(-5px);
    }
    100% {
        transform: translateY(-8px);
    }
}

/* ===================================
   BUTTON TRANSITIONS & RIPPLE EFFECT
   =================================== */

button,
.btn,
a.btn,
.quote-btn,
.cta-btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

button::before,
.btn::before,
a.btn::before,
.quote-btn::before,
.cta-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

button:hover::before,
.btn:hover::before,
a.btn:hover::before,
.quote-btn:hover::before,
.cta-btn:hover::before {
    width: 300px;
    height: 300px;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: rippleEffect 0.6s ease-out;
    pointer-events: none;
}

@keyframes rippleEffect {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ===================================
   FORM TRANSITIONS
   =================================== */

.form-control,
.form-select {
    transition: all 0.3s ease;
    border: 1px solid #e5e5e5;
}

.form-control:focus,
.form-select:focus {
    border-color: #f6881d;
    box-shadow: 0 0 0 4px rgba(246, 136, 29, 0.1);
    transform: translateY(-2px);
    transition: all 0.3s ease;
}

.form-control::placeholder {
    transition: color 0.3s ease;
}

/* ===================================
   HERO SECTION TRANSITIONS
   =================================== */

.hero-content {
    animation: slideInLeft 0.8s ease-out;
}

.hero-image-section {
    animation: slideInRight 0.8s ease-out;
}

.stat-card {
    animation: float 3s ease-in-out infinite;
    transition: all 0.3s ease;
}

.stat-card:hover {
    animation: floatHover 0.3s ease-out forwards;
}

@keyframes floatHover {
    0% {
        transform: translateY(0) scale(1);
    }
    100% {
        transform: translateY(-10px) scale(1.05);
    }
}

/* ===================================
   FEATURE ITEMS TRANSITIONS
   =================================== */

.feature-item {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #f6881d, #ffb74d);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.4s ease;
}

.feature-item:hover::before {
    transform: scaleX(1);
}

/* ===================================
   SCROLL TO TOP BUTTON TRANSITION
   =================================== */

.scroll-to-top {
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    animation: slideInUp 0.3s ease-out;
}

.scroll-to-top:hover {
    transform: translateY(-3px);
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 10px 35px rgba(255, 107, 53, 0.3);
    }
    50% {
        box-shadow: 0 15px 45px rgba(255, 107, 53, 0.5);
    }
}

/* ===================================
   SECTION TRANSITIONS
   =================================== */

section {
    transition: all 0.6s ease-out;
}

@keyframes fadeInSection {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   IMAGE LOADING TRANSITION
   =================================== */

img {
    transition: opacity 0.4s ease, transform 0.4s ease;
}

img.loaded {
    opacity: 1;
    transform: scale(1);
}

/* ===================================
   TEXT TRANSITIONS
   =================================== */

h1, h2, h3, h4, h5, h6, p {
    transition: color 0.3s ease;
}

/* ===================================
   MODAL & POPUP TRANSITIONS
   =================================== */

.modal {
    transition: all 0.3s ease;
}

.modal.show {
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* ===================================
   SMOOTH PAGE TRANSITIONS
   =================================== */

body {
    transition: background-color 0.4s ease;
}

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

@media (max-width: 768px) {
    .loading-spinner {
        width: 50px;
        height: 50px;
        border: 3px solid rgba(255, 255, 255, 0.2);
        border-top: 3px solid #f6881d;
    }

    .loading-text {
        font-size: 1rem;
    }

    .hero-content,
    .hero-image-section {
        animation: fadeInUp 0.6s ease-out;
    }
}

/* ===================================
   ACCESSIBILITY
   =================================== */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .loading-overlay {
        transition: none;
    }
}

/* ===================================
   PRINT STYLES
   =================================== */

@media print {
    .loading-overlay,
    .scroll-to-top {
        display: none !important;
    }
}