/* ========================================
   Lukas Sistemas - Custom Styles
   ======================================== */

/* CSS Variables */
:root {
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Selection color */
::selection {
    background-color: #2563eb;
    color: white;
}

/* Grid pattern background */
.bg-grid-pattern {
    background-image:
        linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

/* Left area with ~40% overlay and curved boundary. */
.hero-left-overlay {
    background: rgba(255, 255, 255, 0.40);
    clip-path: ellipse(115% 130% at 0% 50%);
}

/* Right area transitions to nearly opaque, blending smoothly with the curve. */
.hero-right-overlay {
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.00) 0%,
        rgba(248, 250, 252, 0.82) 34%,
        rgba(248, 250, 252, 0.96) 64%,
        rgba(248, 250, 252, 1) 100%
    );
}

/* ========================================
   Animations
   ======================================== */

/* Floating animation */
@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    25% {
        transform: translateY(-20px) rotate(2deg);
    }
    50% {
        transform: translateY(-10px) rotate(-1deg);
    }
    75% {
        transform: translateY(-25px) rotate(1deg);
    }
}

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

/* Fade animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

/* Slide animations */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scale animation */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Pulse slow */
@keyframes pulseSlow {
    0%, 100% {
        opacity: 1;
        transform: scale(1) rotate(3deg);
    }
    50% {
        opacity: 0.9;
        transform: scale(1.05) rotate(3deg);
    }
}

.animate-pulse-slow {
    animation: pulseSlow 3s ease-in-out infinite;
}

/* ========================================
   Header styles
   ======================================== */

#header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

#header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

/* Nav link hover effect */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

/* ========================================
   Button styles
   ======================================== */

.btn-primary {
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

/* ========================================
   Card hover effects
   ======================================== */

.card-hover {
    transition: all 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-5px);
}

/* ========================================
   Form styles
   ======================================== */

input:focus,
textarea:focus {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ========================================
   Back to top button
   ======================================== */

#back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ========================================
   Loading animation
   ======================================== */

.loading {
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #fff;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ========================================
   Gradient text
   ======================================== */

.gradient-text {
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #60a5fa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Custom utilities
   ======================================== */

/* Glassmorphism */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Text shadow */
.text-shadow {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Box shadow utilities */
.shadow-soft {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.shadow-strong {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

/* ========================================
   Responsive adjustments
   ======================================== */

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }
}

/* ========================================
   AOS custom animations
   ======================================== */

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-down"] {
    transform: translateY(-30px);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

/* ========================================
   Print styles
   ======================================== */

@media print {
    header,
    footer,
    #back-to-top {
        display: none !important;
    }

    * {
        background: white !important;
        color: black !important;
    }
}