/* Custom Font Definitions */
:root {
    --page-shell-width: 1500px;
}

html {
    font-size: 17px;
}

body {
    font-size: 1rem;
}

.font-display { font-family: 'Bebas Neue', cursive, sans-serif; }
.font-sans { font-family: 'Inter', sans-serif; }
.font-mono { font-family: 'JetBrains Mono', monospace; }

/* Smooth custom scrollbars */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #080808;
}
::-webkit-scrollbar-thumb {
    background: #262626;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #404040;
}

/* Ambient dark grid pattern */
.bg-grid-pattern {
    background-size: 40px 40px;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
}

/* Subtle text glow for display elements */
.text-glow {
    text-shadow: 0 0 30px rgba(255, 255, 255, 0.15);
}

/* Smooth border transitions */
.border-transition {
    transition: border-color 0.3s ease, background-color 0.3s ease, transform 0.2s ease;
}

/* One-time section entrance animation */
.section-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 1200ms cubic-bezier(0.22, 1, 0.36, 1), transform 1200ms cubic-bezier(0.22, 1, 0.36, 1);
}

.section-reveal.is-revealed {
    opacity: 1;
    transform: translateY(0);
}

@keyframes skillFilterEnter {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.skill-filter-enter {
    animation: skillFilterEnter 1000ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

#mobileMenu {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transform: translateY(-8px);
    transition: max-height 320ms ease, opacity 260ms ease, transform 320ms ease;
}

#mobileMenu.mobile-menu-open {
    max-height: 320px;
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .section-reveal,
    .section-reveal.is-revealed {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .skill-filter-enter {
        animation: none;
    }

    #mobileMenu {
        transition: none;
    }
}

/* Custom underline animation for navigation */
.nav-link {
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -2px;
    right: 0;
    background-color: #ffffff;
    transition: width 0.3s ease;
}
.nav-link.active::after, .nav-link:hover::after {
    width: 100%;
    left: 0;
}

/* CLI modal entrance and exit states */
#terminalModal {
    opacity: 0;
    transition: opacity 460ms cubic-bezier(0.22, 1, 0.36, 1);
}

#terminalModal.is-visible {
    opacity: 1;
}

#terminalModal.closing {
    opacity: 0;
    transition-timing-function: cubic-bezier(0.55, 0.06, 0.68, 0.19);
}

.terminal-modal-panel {
    opacity: 0;
    transform: translateY(28px) scale(0.94) perspective(1000px) rotateX(-8deg);
    transition: opacity 460ms cubic-bezier(0.22, 1, 0.36, 1), transform 460ms cubic-bezier(0.22, 1, 0.36, 1);
}

#terminalModal.is-visible .terminal-modal-panel {
    opacity: 1;
    transform: translateY(0) scale(1) perspective(1000px) rotateX(0deg);
}

#terminalModal.closing .terminal-modal-panel {
    opacity: 0;
    transform: translateY(-18px) scale(0.97) perspective(1000px) rotateX(8deg);
    transition-timing-function: cubic-bezier(0.55, 0.06, 0.68, 0.19);
}

#projectModal {
    opacity: 0;
    transition: opacity 460ms cubic-bezier(0.22, 1, 0.36, 1);
}

#projectModal.is-visible {
    opacity: 1;
}

#projectModal.closing {
    opacity: 0;
    transition-timing-function: cubic-bezier(0.55, 0.06, 0.68, 0.19);
}

.project-modal-panel {
    opacity: 0;
    transform: translateY(28px) scale(0.94) perspective(1000px) rotateX(-8deg);
    transition: opacity 460ms cubic-bezier(0.22, 1, 0.36, 1), transform 560ms cubic-bezier(0.22, 1, 0.36, 1);
}

#projectModal.is-visible .project-modal-panel {
    opacity: 1;
    transform: translateY(0) scale(1) perspective(1000px) rotateX(0deg);
}

#projectModal.closing .project-modal-panel {
    opacity: 0;
    transform: translateY(-18px) scale(0.97) perspective(1000px) rotateX(8deg);
    transition-timing-function: cubic-bezier(0.55, 0.06, 0.68, 0.19);
}

@media (prefers-reduced-motion: reduce) {
    #terminalModal,
    .terminal-modal-panel,
    #terminalModal.closing .terminal-modal-panel,
    #projectModal,
    .project-modal-panel,
    #projectModal.closing .project-modal-panel {
        transition: none;
    }
}

.education-card {
    position: relative;
    width: 100%;
    margin-inline: 0;
    box-sizing: border-box;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0);
    background: transparent;
    box-shadow: none;
}

.education-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: transparent;
    pointer-events: none;
}

.education-image {
    height: 100%;
    min-height: 340px;
    object-fit: cover;
    filter: grayscale(1) contrast(1.15) brightness(0.8);
}

.contact-terminal {
    position: relative;
    width: 100%;
    max-width: 680px;
    margin-left: auto;
    background: rgba(10, 10, 10, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: 16px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45);
    overflow: hidden;
    opacity: 0;
    transform: translateY(26px) scale(0.92) perspective(1200px) rotateX(-12deg);
    filter: blur(10px);
    transition: opacity 1200ms cubic-bezier(0.22, 1, 0.36, 1), transform 1200ms cubic-bezier(0.22, 1, 0.36, 1), filter 520ms ease;
}

.contact-terminal.is-visible {
    opacity: 1;
    transform: translateY(0) scale(1) perspective(1200px) rotateX(0deg);
    filter: blur(0);
}

.contact-terminal.closing {
    opacity: 0;
    transform: translateY(-18px) scale(0.96) perspective(1200px) rotateX(12deg);
    filter: blur(8px);
    transition: opacity 420ms cubic-bezier(0.55, 0.06, 0.68, 0.19), transform 520ms cubic-bezier(0.55, 0.06, 0.68, 0.19), filter 420ms ease;
}

.terminal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(25, 25, 25, 0.9);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.9rem 1rem;
}

.terminal-window-buttons {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.terminal-window-buttons span {
    width: 0.7rem;
    height: 0.7rem;
    border-radius: 9999px;
    display: block;
}

.terminal-body {
    padding: 1.25rem 1.1rem 1.1rem;
    background: rgba(8, 8, 8, 0.96);
}

.terminal-prompt {
    color: #34d399;
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.terminal-subtitle {
    color: #a3a3a3;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 0.8rem;
}

.cli-option {
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(24, 24, 27, 0.8);
    color: #f5f5f5;
    padding: 0.8rem 0.9rem;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.cli-option:hover {
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(38, 38, 38, 0.9);
    transform: translateX(4px);
}

.cli-option span:first-child {
    color: #a3e635;
    display: inline-block;
    width: 1.4rem;
}

.cli-option span:last-child {
    flex: 1;
    text-align: left;
}

.terminal-status {
    margin-top: 0.9rem;
    font-size: 0.68rem;
    color: #d4d4d4;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: opacity 220ms ease, max-height 220ms ease;
}

.terminal-status.visible {
    opacity: 1;
    max-height: 80px;
}

.terminal-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.9rem 1.2rem;
    border-radius: 9999px;
    border: 1px solid rgba(255,255,255,0.12);
    background: rgba(255,255,255,0.02);
    color: #f5f5f5;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    transition: all 200ms ease;
}

.terminal-cta:hover {
    border-color: rgba(255,255,255,0.25);
    background: rgba(255,255,255,0.05);
    transform: translateY(-1px);
}

@media (max-width: 768px) {
    .contact-terminal {
        max-width: 100%;
    }
}